December 2012

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Dec 2, 2012 ... The GM Service Information recently introduced a new graphics viewer that offers additional information through the use of hotspots, links and larger illustrations . The new CGM graphics ... For example, clicking the high pressure fuel pump brings up the connector part ..... Suburban, Tahoe, Sierra, and.
December 2012, Volume 14, No. 12

New Graphics Viewer Enhances Service Information Functionality The GM Service Information recently introduced a new graphics viewer that offers ­additional information through the use of hotspots, links and larger illustrations. The new CGM graphics viewer is available when viewing several component views, harness ­routing views and other electrical sections of 2013 model year vehicles. A plug-in must be downloaded in order to use the CGM viewer. CGM (Computer Graphics Metafile) is the international standard for the storage and ­exchange of two-dimensional graphical data.

Download the Plug-in To get started, download the CGM plug-in from the Help menu. 1. In the Service Information, click the Help icon. 2. Click TIFF and CGM Graphic Viewers (Download and Execute) 3. Click CGM Plug-in Support 4. Follow the instructions to install the plug-in and set up the viewer on your computer. The CGM viewer plug-in has the same functionality as the current TIFF viewer, along with several additional features.

Tool Bar The CGM viewer tool bar includes the familiar magnification functions and enlargement

CGM viewer tool bar

continued on page 2

Contents New Graphics Viewer Enhances Service Information Functionality . . . . . . . . . . . . . . 1 New Chassis Control Module Name for 2014 Model Year. . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Use TXL Wire in Wiring Repairs . . . . . . . . . . . . . . . 3 Revised Torque Specification for Sonic Roof Rack. 3 Multiple DTCs Set When Using the MDI . . . . . . . . 3 New Bi-Fuel Gasoline and CNG Pickup Trucks. . . . 4 Headliner Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . 6 “No Route Active” Navigation Message. . . . . . . . . 7 Engine Overheats or Poor Heater Performance . . . 7 Water in HVAC Blower Motor Control Module Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Program Cluster Message. . . . . . . . . . . . . . . . . . . . 8 Inoperative Radio Button Backlighting . . . . . . . . . . 8 Audio from Left Front Speaker Only When Using Bluetooth . . . . . . . . . . . . . . . . . . 8 “A” Pillar Whistle Noise. . . . . . . . . . . . . . . . . . . . . . 9 Park Brake May Not Release . . . . . . . . . . . . . . . . . 9 Washing Bright Aluminum Moldings . . . . . . . . . . . . 9 Car Issues – Fix It Right the First Time. . . . . . . . . 10 Truck Issues – Fix It Right the First Time. . . . . . . . 10 Service Know-How . . . . . . . . . . . . . . . . . . . . . . . . 10

Customer Care and Aftersales

New Graphics Viewer –

continued from page 1

f­ unctions. In addition to these common tools, it also has a Highlight Hotspots function.

From the connector end view, once again click the Highlight Hotspots button to view the hotspots in the graphic for additional details. In the connector end view, hover over each hotspot to view the pin number, size, color, circuit and other information. This information also is presented in a table below the graphic.

The Highlight Hotspots function can be used to identify all of the additional information available within the CGM graphic. Click and hold the hotspot button on the tool bar to highlight all hotspots in the graphic. The hotspots will be shown with a solid red line in the graphic.

Connector end view with hotspots. Highlight hotspots in the graphic.

In addition to connector end views, CGM graphics are planned to be expanded to electrical center ID views, harness routing views, and others. Hovering over each component will provide additional details.

Hover Over for More Details Each of the highlighted hotspots features additional detail. Hover over the hotspot with the cursor to reveal the information. For example, information may be presented about the component, ­including the component code, name and RPO.

Hover over the hotspot to reveal additional details.

Electrical center ID view

To print any of the CGM graphics, right-click the mouse button and select the print function. Only the graphic will be printed. To print the additional details presented when hovering over a component, use the print screen function on the keyboard.

Linked Information If the cursor arrow changes to a hand when hovering over a hotspot, click the hotspot to go to additional linked information. For example, clicking the high pressure fuel pump brings up the connector part information and terminal part information.



Thanks to Lisa Scott and Lou Winters

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December 2012

New Chassis Control Module Name for 2014 Model Year Beginning in the 2014 model year, the Fuel Pump Control Module (FPCM) will now be called the Chassis Control Module (CCM). The component code for the Chassis Control Module will be K38. The Chassis Control Module name will be used in Service Information, the Global Diagnostic ­System (GDS) and the Service Programming ­System (SPS). The Chassis Control Module will control the ­following vehicle systems: • Active Grille Air Shutter • Automatic Leveling • Electronic Returnless Fuel System • Engine Mounts • Exhaust Tail Pipe Flow Control Valves • Trailer Brakes • Transmission Cooling Fan

Use TXL Wire in Wiring Repairs What type of wire should be used when making wiring repairs in the engine compartment? The answer: TXL wire. GM uses TXL wire because of its reliability and high temperature ­performance in a small diameter with minimal weight. All important aspects in an engine harness. It meets SAE standard J1128 for low voltage primary cable in vehicle electrical systems. Standard primary wire found in most parts stores cannot withstand the temperatures and physical abuse common in the automotive environment. TXL wire features a multistranded copper core and lightweight cross-linked polyethylene insulation. It has a temperature rating of –40°F (–40°C) to 257°F (125°C) at 60 volts or less.

TXL wire has the thinnest insulation of the three types of cross-linked polyethylene wire, followed by GXL wire and SXL wire, which has the thickest insulation. It’s important to use TXL wire to maintain factory specifications for wire harness integrity. TXL wire is available through the GM standard parts catalog under Cabling. When making wire repairs, refer to Power and Signal Distribution > Wiring Systems and Power Management > Diagnostic Information and Procedures in the appropriate Service Information for information on splicing copper wire using splice sleeves, folded-over wire repair as well as using the correct wire gauge size. Thanks to Rob Prough and Len Tillard

Thanks to Ching-Yu Meng and Daniel Rose

Revised Torque Specification for Sonic Roof Rack A revised torque specification has been release for the GM Accessories roof rack (part numbers 95932736 and 95932737) available for the 20122013 Sonic. Current torque tool

When installing the roof rack kit, do not exceed 4.0 Nm. Failure to follow this revised torque spec may result in damaging the roof panel. The GM Accessories kits will be revised in the future with the new spec and tool.

For existing kits with the current design torque tool, a new torque tool (WPC #643) can be obtained from the Warranty Parts Center if needed. To New torque tool obtain the new torque tool, complete the WPC Parts Request Form and submit it to the Warranty Parts Center. Thanks to Ernest Haller

Multiple DTCs Set When Using the MDI Panel Self-Test may occur when the Multiple Diagnostic Interface (MDI) tool is plugged into the Diagnostic Link Connector (DLC) on some 2013 ATS and 2010-2013 SRX models. This condition, which may be aggravated by slightly wiggling the connection at the DLC, may be the result of a poor electrical ­connection to the MDI caused by spread terminals in the DLC.

December 2012

Check for spread terminals in the DLC, especially ground terminals 4 and 5, using the J-35616-2A (GY) diagnostic test probe. If replacement terminals are required, they are part number 50420-8000, located in tray 15 of the terminal repair kit. Thanks to Ron Erman

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New Bi-Fuel Gasoline and CNG Pickup Trucks The flexibility of choosing a different fuel altogether may be the best choice in the ongoing battle with unpredictable fuel prices. In the new 2013 Chevrolet Silverado and GMC Sierra 2500 HD bi-fuel pickup trucks, gas is gas — whether it’s gasoline or ­Compressed Natural Gas (CNG) — and either fuel can be used with the push of a button. The 6.0L V8 engine can run on gasoline or CNG and seamlessly transitions between the two fuels without any loss of performance or fuel economy. The CNG and gasoline tanks have a combined range of 650 miles. The gasoline and CNG trucks are available in the following ­models: • 2013 Chevrolet Silverado 2500HD • 2013 GMC Sierra 2500HD • Equipped with the Vortec 6.0L V8 (RPO LC8) • Equipped with the extended cab only

CNG fuel mode switch and LED fuel gauge

• Equipped with a standard or long box

The single light at the top of the switch indicates which fuel ­system (mode) is currently in operation. Red indicates gasoline mode and green indicates CNG mode. When the system is changing from gasoline to CNG, the indicator will turn orange for a few seconds.

• Equipped with two-wheel drive or four-wheel drive The bi-fuel system is designed for primary ­operation on CNG as long as there is sufficient fuel in the CNG fuel tank. The trucks feature a 17.5 GGE, gasoline gallon equivalent, (66.2 L) CNG tank and a 36 gallon (136.2 L) gasoline tank.

Four lights are at the bottom of the button. The number of illuminated lights indicates the CNG fuel level fuel level. Four lights indicate a full tank (approximately 3,600–3,100 psi; 24,800–21,400 kPa) while only one light indicate the fuel level is less than a ­quarter tank full (approximately 1,000–500 psi; 6,900–3,450 kPa). The driver can press the center of the button to switch between fuels at almost any time. The fuel mode can be changed almost any time the ignition is ON, or the engine is running.

Bi-Fuel Engine The 6.0L V8 engine uses an Engine Control Module (ECM) with both gasoline and CNG calibrations to ensure all engine operating parameters are within acceptable performance operating limits. The ­engine is designed to meet strict Environmental Protection Agency (EPA) and California Air Resources Board (CARB) ­certification. It features a gasoline fuel injection system and a CNG fuel injection system.

CNG Fuel Supply The CNG fuel supply and metering system consists of the following components: • CNG 1/4 turn isolation valve (manual shut-off valve) • Alternative fuel rail pressure/temperature sensor • CNG coalescing fuel filter • CNG cut-off solenoid valves (2 solenoid valves) • Engine Control Module (ECM) • Excess flow valve

The hardened bi-fuel engine provides the same durability as a gasoline only engine. The hardened engine components for CNG fuel use include hardened intake and exhaust valve seats and hardened exhaust valves.

• Fill line check valve • Fill filter • Fill valve (NGV1 fill receptacle)

The engine always starts on gasoline. When the engine reaches a pre-determined operating temperature it seamlessly switches over to the CNG fuel system. If the CNG fuel is depleted, the system automatically switches over to the gasoline system.

• Fuel injectors/injector hoses

A minimum gasoline level of at least one-quarter tank should ­always be maintained. To protect engine components, a switch to gasoline may occur at any time. The vehicle will not start if the engine stalls due to a lack of gasoline.

• Fuel mode switch

• Fuel injector control module (FICM) • Fuel injector rails • CNG fuel pressure regulator • Fuel pump disable module • CNG fuel tank

Switching Between Fuels

• CNG Fuel Tank Pressure (FTP) sensor

The CNG fuel mode switch and LED fuel gauge is located on the center of the instrument panel. The CNG fuel gauge indicates how much CNG is left in the tank. CNG quantity is affected by changes in fuel temperature and fuel pressure.

• CNG fuel tank temperature sensor • CNG tank Pressure Relief Device (PRD) (2 devices) continued on page 5



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December 2012

New Bi-Fuel Pickup Trucks – • High pressure line and hose (stainless steel tubing and stainless steel jacketed PTFE hose) • LED fuel gauge • Low pressure fuel line and hose (stainless steel tubing and ­stainless steel jacketed PTFE hose)

continued from page 4

The Tech 2/MDI scan tools are used for vehicle diagnosis. ­Diagnostic Trouble Codes (DTCs) are the same as with gasoline only engines. There are two cut-off solenoid valves. When they are not energized, these solenoids close an internal valve to block the flow of CNG. The front CNG cut-off solenoid valve 1 is integrated with the CNG fuel pressure regulator assembly. The rear high pressure CNG cut-off solenoid valve 2 is located near the CNG fuel tank outlet. A 40 micron filter is integrated with the fill valve to help prevent contaminates from entering the CNG fuel system during refueling. When the filter becomes restricted, the amount of time required to refill the CNG tank will increase. The CNG fill valve (receptacle) is a NGV1 profile and mates to any NGV1 fill dispenser valve. The fill dispenser seals to the receptacle with an internal O-ring. The fill valve is mounted in the side of the CNG fuel tank cover. Remove and reinstall the fill valve dust cover when refueling.

Manually operated 1/4 turn isolation valve

The high pressure fuel system is equipped with a manually operated 1/4 turn isolation valve (manual shut-off valve), located in the high pressure supply line near the CNG fuel tank outlet on the driver’s side of the vehicle. The purpose of the valve is to isolate the high pressure side of the fuel system for some service procedures. If this valve is inadvertently left in the OFF position, the vehicle will not operate in CNG mode. Turn the manual shut-off valve 90 degrees to turn OFF the CNG. The alternative fuel rail pressure temperature sensor is mounted to the right side fuel rail. It is a 4 wire sensor that provides the ECM with pressure and temperature data through the FICM ­serial  data. The coalescing fuel filter is located between the front CNG cutoff solenoid valve 1 and the 1/4 turn isolation valve (manual shut-off valve). It contains a 6 micron filter element and a drain fitting. The filter is designed to trap contaminates and liquids that may damage the fuel injectors. It must be periodically inspected, drained and replaced.

CNG Operation The FICM controls the three operating modes of the bi-fuel ­system. In gasoline mode, the fuel injector and fuel pump control signals are bypassed through the FICM to the proper components, allowing the vehicle to operate the same as a conventional vehicle. In change-over mode, the FICM supplies voltage to the CNG cut-off solenoid valves, opening them at the CNG fuel tank and the pressure regulator, which allows the CNG system pressure to adjust to the normal operating pressure from the tank to the ­injectors. The FICM will then switch off the gasoline injectors sequentially beginning with cylinder #1. The appropriate CNG injectors are switched on sequentially as each gasoline injector is switched off. Once the engine is operating in CNG mode, the gasoline fuel pump is switched off by the FICM. The ECM performs all i­njector pulse and ignition timing calculations to ensure proper engine ­performance.

December 2012

A. CNG fill valve B. Internal O-ring C. Fill valve dust cover

The CNG fuel tank, located at the front of the truck bed, is constructed of aluminum liner wrapped in carbon fiber and conforms to NGV2-2000 (Type 3) specifications. The CNG cut-off solenoid valve 2 is threaded into the outlet end (driver side) of the fuel tank and is used to prevent fuel flow during non-operational running conditions. The service life of a Type 3 CNG fuel tank is 15 years from the date it was manufactured. Metal shields are used to protect the tank from road debris or other contact conditions that may occur. All service parts, including the gaseous fuel components, are available through the GM parts distribution system. For additional information about the new bi-fuel pickup trucks, refer to Bulletin #PI0834. Thanks to Sherman Dixon and Chris Graham 5

Headliner Repairs Sagging or loose headliners may be found on some 2010-2011 Equinox and Terrain, 2011-2012 Regal, and 2013 XTS models. Each of these conditions requires different repairs of the magnetic headliner retainer assembly.

Cut only the acoustic insulation material. Do not damage the lamp wiring or the headliner foundation material. After removing the insulating material, install two magnet assemblies to the headliner foundation using a hot glue gun and Hot Melt Adhesive Sticks. Remove any foam spacer blocks next to the dome lamp opening to allow the magnets to fully engage with the metal roof.

Equinox and Terrain A loose or sagging headliner on 2010-2011 Equinox and Terrain models built after July 18, 2010 may be due to insufficient attachment of the headliner assembly, which is attached to the vehicle with magnet assemblies bonded to the headliner.

Refer to #PI0253E for more details.

Regal

It’s necessary to remove the headliner assembly to perform the repairs; otherwise, the headliner may be damaged.

Some 20112012 Regals may have a sagging headliner in the ­center rear area above the rear window due to a loose hook and loop fastener.

Inspect the magnet assemblies to make sure they are fully bonded to the headliner without any gaps in the adhesive. The adhesive should be through the holes in the plastic attachment The adhesive should be through pedestal. If the pedestal holes. the adhesive is not through the pedestal holes, remove the pedestal and reinstall it.

To correct Push the headliner into position. this condiSupport it while the epoxy cures. tion, two magnet assemblies should be ­installed to the headliner above the rear window. Remove the left and right body lock pillar upper trim and the left and right rear roof rail assist handles. Lower the rear of the headliner to access the repair area.

Before reattaching the pedestal, remove as much of the old adhesive as possible from the bonding area. It may be necessary to use a heat gun to soften the old adhesive.

To secure the headliner, mix the recommended gel epoxy and apply it to the magnet assemblies. Install the magnets to the inside of the rear window pinch weld flange and then push the ­headliner into position and support it while the epoxy cures.

Use a hot glue gun and a Hot Melt Adhesive Stick (GM P/N 12377914; in Canada, 88864881) to secure the magnet assembly to the headliner. Ensure that the adhesive flows through all the holes in the attachment pedestal.

Refer to #PI0599B for more information.

XTS

Refer to #PI0541A for additional information.

The headliner retaining magnet may be separating from the headliner trim panel on some 2013 XTS models, causing the headliner to sag at the rear window.

On some 2010 Equinox and Terrain models, the headliner may be sagging around the second row dome lamp. For this condition, it’s necessary to remove the headliner and trim the acoustic insulating material in front of the dome lamp. Measure forward 120 mm from the rear edge Cut the acoustic insulation material. of the dome lamp mounting hole and outline the area to be trimmed with masking tape.

Inspect the headliner to see if it’s Install the retainer to the headliner. properly secured by using your fingers or a hooked trim stick to pull down the rear center edge of the headliner. The magnet should make a popping continued on page 7



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December 2012

Headliner Repairs – continued from page 4

“No Route Active” Navigation Message

noise when it disengages from the rear header panel. When you release the headliner, the magnet should again engage back on the rear header panel. If it doesn’t engage, install a new headliner magnet retainer.

The 2013 ATS, SRX, and XTS equipped with the CUE Infotainment System may display a message that states “No Active Route” when the Navigation icon on the CUE display is touched.

The rear window must be removed to access the rear headliner retainer. Lower the headliner trim panel by releasing the left and right outer rear headliner trim panel clips from the rear roof bow. Mark the location of the failed retainer being serviced on the headliner trim panel and remove the old adhesive from the failed retainer. Remove as much of the old adhesive as possible. Mix the recommended gel epoxy and apply it to the headliner trim panel at the marked location. Install the retainer so that the adhesive is squeezed through all the holes in the base of the retainer. Allow the adhesive to fully cure before reinstalling the headliner trim panel using the magnet retainer. For further information, check Service Update #12230 in the Service Information. Thanks to Gary Kirrkamm

There are different option levels of the CUE system; not all of which are equipped with an embedded navigation system. The Navigation icon is ­displayed in both systems, but they function differently dependent on which option is in the vehicle. Depending on equipment, touching the Navigation icon may display the navigation map or OnStar Turn-by-Turn Navigation. If the vehicle does not have an embedded navigation system and the ­Navigation icon is selected from the Home screen, a screen stating “No ­Active Route. Press the Call OnStar button.” is displayed. OnStar Turn-byTurn Navigation requires the Directions and Connections service plan. If the vehicle has both an embedded navigation system and OnStar, the system only allows the use of one application at a time. Check the vehicle build/RPO code to determine if the CUE system is equipped with navigation. Model

RPO

ATS with CUE Navigation

RPO Y26

SRX with CUE Navigation

RPO UY4

XTS with CUE Navigation

RPO IO6

If the vehicle is not equipped with the model-specific RPO code listed above, it is not equipped with the Navigation function and cannot be upgraded. The vehicle is operating as designed and no repairs should be performed. Thanks to Jeremy Richardson

Engine Overheats or Poor Heater Performance On some 2013 Malibu models equipped with the 2.5L 4-cylinder engine (RPO LCV), the following conditions may be present: • Engine overheating • AC Off Due to High Engine Temp or Engine Overheated messages displayed on the Driver Information Center on the instrument ­cluster • Poor heater performance after extended idling or cruising at low rpm for an extended period • DTCs P00B7 (Engine Coolant Flow Insufficient) or P2181 (Engine Cooling System Performance) set in the ECM Remove the water outlet attached to the rear of the cylinder head. This outlet is made of black plastic and has the hoses that connect to the heater core and surge tank. Check the outlet for plastic flashing and/or debris. Remove and clean the outlet or replace as needed. Ensure the heater hoses are installed properly at the heater core. The upper hose at the heater core should be the heater hose that is connected to the surge tank. Refill the cooling system using the Vac-N-Fill procedure using the Vac-N-Fill Coolant Refill Tool (GE-47716).

A. Water outlet seal B. Water outlet C. Water outlet fasteners

Evaluate the performance of the heating and cooling systems to validate the repair. Thanks to Christopher Crumb

December 2012

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Water in HVAC Blower Motor Control Module Area On some 2013 Malibu eAssist models, the blower motor may be inoperative and/ or there may be water in the HVAC blower motor control module area. DTC B0193 (Front Blower Motor Speed Circuit) also may be set.

Remove the air inlet grille to ­access the plenum water ­deflector. Remove the plenum water deflector. Add a closed cell foam strip (1/4-inch Add a closed cell foam strip across the tall x 3/8top of the deflector. inch wide), acquired ­locally, across the entire top of the deflector. Reinstall the water deflector and air inlet grille.

Plenum water deflector

If this condition is found, inspect the HVAC blower motor, HVAC blower motor control module and connectors for signs of water. If water is apparent, it will be necessary to reseal the plenum deflector, replace any damaged parts and repair any ­damaged connectors as needed.

Thanks to Christopher Crumb

Program Cluster Message

Inoperative Radio Button Backlighting

A Program Cluster message may be displayed in the Driver Information Center for approximately one second when the ignition key is turned to the Run position on some 2013 Acadia AWD models built prior to VIN 1GKKVRKD4DJ123190. After the message, the instrument cluster operates in a normal fashion.

The backlighting of the radio buttons on some 2007-2013 Avalanche, Silverado, Suburban, Tahoe, Sierra, Yukon, and Yukon XL models (without RPO Y91, Luxury Edition Package, or RPO STZ, LTZ Sales Package) may be inoperative. The radio display will work properly and will dim using the instrument panel brightness switch.

This condition may be caused by incomplete programming of the instrument cluster during assembly of the vehicle. TIP: Only AWD models built prior to the VIN reflected above have the potential for this condition. Programming the instrument cluster with the service calibrations available through the Service Programming System (SPS) will eliminate the message from being displayed.

Connector X212 pin B7

This condition may be caused by an open/high resistance in the LED ­Dimming circuit 6817 to the radio. After performing normal diagnostics, ­inspect for a bent or backed out terminal at connector X212 pin B7 and ­repair as necessary.

Vehicles built before the VIN breakpoint that are received at the dealership should be inspected for this condition at PDI and the necessary repairs performed prior to retail sale.

Thanks to Jim Will

Thanks to James Miller

Audio from Left Front Speaker Only When Using Bluetooth ®

On the 2012-2013 Sonic equipped with the AM/FM Radio (RPO UM7), audio will be heard from the left front speaker only when using a Bluetooth device. This is normal operation.

If the concern is present with audio streaming (listening to music), verify the audio device (including cell phones) is linked for Bluetooth music.

Verify the customer’s concern to determine if the concern is when making phone calls or when using audio streaming.

TIP: When using a cell phone, the Bluetooth device needs to be linked twice — both for Phone (Hands-free) and for Music.

When using a Bluetooth device for phone calls, audio will only come out of the left speaker.

Thanks to Ernest Haller

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December 2012

“A” Pillar Whistle Noise GM TechLink is published for all GM retail technicians and service consultants to provide timely information to help increase know­ ledge about GM products and improve the performance of the service department. Publisher:

John Meade GM Customer Care and Aftersales / [email protected] Editor:

Lisa G. Scott GM Customer Care and Aftersales / [email protected] Technical Editor:

Mark Spencer / [email protected] Production Manager:

Marie Meredith Desktop Publishing:

5by5 Design LLC / [email protected] FAX number:

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1-248-729-4704 Write to:

*

TechLink PO Box 500 Troy, MI 48007-0500

GM TechLink on the Web:



GM GlobalConnect

The noise may be most evident when driving around 50 mph (80 km/h) with the HVAC in Recirculation mode. This whistle noise may be coming from one of the rivets securing the VIN plate to the cowl.

Reseal the rivet(s) using RTV sealer from the under the VIN plate. The underside of the rivets can be accessed through the cowl by removing the cowl cover and windshield wiper linkage. Thanks to Jim Will

Park Brake May Not Release On some 2013 Malibus, the park brake may not release or the park brake calibration cannot be performed using GDS 2. A Service Park Brake message may be displayed on the Driver Information Center and DTCs C0558 sym5A (Calibration Data Not Plausible) and/ or C0558 sym55 (Calibration Data Too Few Transitions) may be set.

Washing Bright Aluminum Moldings The 2013 ATS and XTS feature bright aluminum moldings that require proper care in order to maintain their appearance. TIP: Owners should be advised of the proper care of the bright aluminum moldings. Review this information with owners. In order to avoid damage that may not be covered by the new vehicle warranty, it is recommended that a non-alkaline solution be used for preparation and washing of the bright aluminum moldings, otherwise damage may occur. If a cleaning solution with an alkaline pH greater than 11.0 is used, the ­vehicle should be rinsed immediately by following this procedure when washing the vehicle: 1. Prewash the vehicle to bring moldings to room temperature. 2. Apply the cleaning solution out of ­direct sunlight and at room ­temperature.

G401 at the left rear wheel house

Check that G401 at the left rear wheel house is secure and there is no paint or tape affecting contact. Thanks to Christopher Crumb

December 2012

Rivets securing VIN plate

To help pinpoint the source of the noise, it may be helpful to use a stethoscope or the ­Ultrasonic Leak Detector (J-41416).

:

General Motors service tips are intended for use by professional ­technicians, not a “do-it-yourselfer.” T­hey are written to inform those ­technicians of conditions that may occur on some vehicles, or to provide­information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the information applies to your vehicle or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information. Inclusion in this publication is not ­necessarily an endorsement of the individual or the company. Copyright© 2012 General Motors All rights reserved.

A whistle noise may be noticed at the driver’s side “A” pillar on some 2008-2013 Escalade models, Avalanche, Silverado, Suburban, Tahoe, Sierra, and Yukon models.

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3. Rinse the moldings with clean water within five minutes of application of the cleaning solution. Thanks to Jeremy Richardson

Car Issues – Fix It Right the First Time Model Year(s)



Vehicle Line(s)/Condition

Do This

Don’t Do This

Reference Information/Bulletin

2013

ATS — Towing/transport recommendations to avoid vehicle damage

Tow the ATS on a flatbed secured with a wheel strap only.

DO NOT hook, pull or secure the vehicle using any of the under body or suspension components.

PI0844

2012

Sonic — Water intrusion (leak), rear side door stationary window

Reseal the window glass to the surrounding rubber seal.

Replace the window glass or any parts.

PI0830

2012-2013

Terrain, Equinox, Volt, Verano, Regal, Malibu, LaCrosse — Unable to access MP3 Files on CD, Bluetooth connectivity, no audio after a Bluetooth call, phone book usage issues

Reprogram the radio if any of the listed conditions are present.

Replace the radio.

PI0693C

2010

Terrain, SRX, LaCrosse, Equinox, Camaro — Poor AM radio reception, static noise

Use the new sleeve to ensure proper contact for the radio antenna coax.

Replace the coax.

PI0168A

2007-2011

Outlook, G6, Acadia, Traverse, Malibu, Enclave — MIL On, poor acceleration, throttle body freezing, multiple DTCs set, ice deposits and/or oil deposits present in air inlet duct

Clean PCV orifice prior to replacement of parts outlined in the bulletin.

Change out part without cleaning PCV orifice and hose.

PI0746B

2011-2012

Camaro — Retrofit procedure for new corded folding top cover installation to original design frame

Refer to the latest publication. There is updated information on the installation procedure. Provide the latest copy to your sublet shop, if applicable.

Refer to the installation instructions that come with P/N 22903701 02 and 03. The information is from the top supplier and has not been updated.

PI0756A

2012-2013

Camaro — Exhaust baffle rattle noise

Reflash the Fuel Pump Control Module. The calibration for the exhaust valve operation is in the FPCM.

Replace the exhaust system. You will be installing the same system with what is on the car.

PI0847

2013

Corvette — AM radio reception quality poor

Reroute the yellow antenna lead and make sure to add the capacitor to the grounding wire.

Replace the radio or the antenna module.

PI0793A

2012-2013

Corvette — Click noise or bump felt in steering

Verify the bump in the steering gear first by disconnecting the electrical connection to the steering gear. This will remove the power from the magnets. If the bump feel or noise is gone, replace the steering gear.

Replace the steering column or intermediate shaft.

PI0831

2010-2013

Captiva, Acadia, Terrain, Traverse, Equinox, Impala, XTS, SRX, LaCrosse, Enclave — Charging system light illuminated, Service Battery Charging System message displayed, no charging system output

Use caution when adding engine oil and when removing oil filter.

Leave bulk oil dispensing equipment unattended during oil fill.

PI0839

2010-2012

LaCrosse — Front side door window upper reveal molding fit and appearance

Realign and affix reveal molding to door header with bulletin procedure.

Replace reveal molding and/ or side door weatherstrip.

PI0848

2013

XTS — Engineering Information - Rear of vehicle sits low

Call the number listed in the EI.

Repair without contacting the individual listed in the EI.

PIE0236

2013

XTS — Seat speaker buzz or rattle noise

Order the correction seat screws from WPC.

Replace Speakers.

PI0841

2013

XTS — Trunk trim panel below rear package shelf loose/sagging/bowing at rear

Place 2 push pins as the PI outlines to resolve.

Replace the trunk trim.

PI0842

2013

XTS — Front floor console cup holder rattles in open position

Snap the trim back into place.

Replace the cupholder assembly.

PI0843

2013

XTS — Driver seat memory seat switch pushes into door trim panel

Remove the door trim and repair as the PI outlines.

Replace the switch or bezel.

PI0846

2010-2013

Verano, XTS, ATS, Volt, Regal, Spark, SRX, Sonic, Orlando, Cruze, Camaro — Transport Mode On message displayed in DIC and/or Battery Light is Flashing

Become familiar with this feature and involved models.

This will prevent spending unnecessary time diagnosing normal operation.

11-08-49-001C

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December 2012

Truck Issues – Fix It Right the First Time Model Year(s)

Vehicle Line(s)/Condition

Do This

Don’t Do This

Reference Information/Bulletin

2010-2013

Terrain, Equinox — Inspection and repair guidelines for dust intrusion into passenger compartment

Inspect for specific sources of dust leakage, next repair seal specific to sealing location.

Replace door or tailgate seals or weatherstrips.

PI0828

2012-2013

Colorado, Canyon, Silverado, Sierra, Express, Savana — Ticking noise in 3rd and 4th gear above 30 mph

Replace the reaction carrier.

Replace the transmission assembly.

PIP5065A

2011-2013

Silverado, Sierra — Revised wheel balancer mounting instructions (HD models only)

Follow updated balancing instructions.

Replace tire or wheels unless diagnostics determine need.

10-03-10-001A

Customer Care and Aftersales

10212.12D Emerging Issues

Service Know-How

December 2012

December 13, 2012

To view Emerging Issues seminars: Log in to www.gmtraining.com, select Service Know-How/ TECHAssist from the menu, select Emerging Issues, and then Searchable Streaming Video to choose the current Emerging Issues seminar or past programs.

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