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TOPIC : GMC

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Equinox Switch Glitch

A “small number” of ignition and start switch housings are involved in a recall involving 2010-2013 Chevy Equinox, 2013 Buick Encore, 2011 Buick Regal, 2013-2014 Buick Verano, 2011-2016 Chevy Cruze, 2013-2015 Chevy Malibu and 2011-2013 GMC Terrain models. The ignition system may contain a damaged electronic park lock lever that could fail to prevent the ignition key to be removed when the transmission is in a position other than park. 

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There’s the Rub

Owners of 2007-2013 GMC Denali, Sierra or Yukon vehicles may comment that one or more of the doors do not lock/unlock when activating the power door locks. The condition may be intermittent or constant. The cause may be that the door locking button is hanging up on the window belt inner sealing strip within the door. The inboard seal material may rub on the button.

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Wrong Spec Tires Can Cause Issues

Owners of 2009-2017 GMC Acadia vehicles may comment that under hard acceleration at higher speeds, the traction control light will flash, or they may visit your shop for ABS or general handling/braking concerns. This may be caused by tires installed that do not meet the same tread wear, traction or temperature ratings.

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Lift Gate Adjustment

Some owners of 2010-2014 GMC Terrain vehicles may complain about a rattle noise from the rear lift gate on rough roads. This may be caused by insufficient contact between the left gate wedges or the latch contacting the striker.

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TPMS Recall

General Motors issues a recall on certain 2018 GMC Savana and Chevy Express vehicles with certain combinations of front tire and gross vehicle weight option codes. The tire pressure monitoring system may be incorrectly calibrated, causing the TPMS warning light to illuminate when tire pressure reaches 37 psi, not 41 psi.

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Baffling Fix

Some owners of 2007-2013 GMC Acadia vehicles may comment that the fuel gauge does not go to empty and the engine runs out of fuel, or they may hear a fuel slosh or noise from the fuel tank area when braking or accelerating from a stop.

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Savana Trans Noise

Owners of a 2008-2013 GMC Savana equipped with a 4L60E, 4L65E or 4L70E transmission may comment that the transmission makes a squawk or grunt type noise when shifting from 2nd to 3rd gear.

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GMC Mystery

This bulletin applies to 2014 GMC Sierra 2500/3500 4WD vehicles. In “rare” cases, customers may experience one or all of eight issues ranging from no vehicle power to radio clock resets.

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Code Plays a Joke

This bulletin applies to 2007-2013 GMC Yukon and Sierra vehicles. DTC B2555 may be found in a driver and/or passenger door module (DDM or PDM). This DTC is associated with front driver and passenger door panel courtesy lights that are only available on certain models.

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Trans Relieving Itself?

This bulletin applies to 2010-2013 GMC Terrain trucks that exhibit an automatic transmission fluid leak. The technician may find fluid leaking from the torque converter housing and the torque converter seal. 

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