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TOPIC : GMC

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ABS-Related Recall

GM is recalling certain 2015-2020 GMC Yukon vehicles equipped with a 5.3L engine, a 3.08-ratio rear axle and four-wheel-drive. If a wheel speed sensor fails, while the vehicle is travelling between 41 mph and 60 mph in four-wheel or automatic mod, the EBCM (electronic brake control module) software may activate the driveline protection system.

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Canyon Pinion Angle

Owners of 2015-2018 GMC Canyon vehicles equipped with a 3.6L engine and 8L45 automatic transmission may comment about a vibration and/or noise heard during hard acceleration at speeds of 48-52 mph. The condition may be caused when the driveline angle gets extreme during axle wind-up, resulting in 2nd order vibration.

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Hot Heater Cord

GM is recalling certain 2019 GMC Sierra 2500 and 3500 trucks equipped with a Duramax 6.6L diesel engine and optional engine block heater.

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Wet Headlamp Causing Problems

Water intrusion into the headlamp assemblies or the headlamp assembly connections may lead to a dead battery in 2019 GMC 1500 Limited and 2016-2018 Sierra vehicles. 

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GMC DTC Tip

Some owners of 2017-2018 GMC Canyon vehicles may comment on an illuminated MIL. Technicians may find DTC P0171 and/or P0174 set. If you encounter this concern, check for a vacuum leak at the PCV fresh air tube or the foul PCV tube attachment under the air cleaner outlet duct or at the intake manifold.

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Fuel Pump Concern

This bulletin applies to 2014-2019 GMC Sierra and 2015-2019 Yukon vehicles. A vehicle may have a concern with an SES lamp on and a rich condition DTC P0172 and P0175.

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Trailer Brake Warning

This bulletin applies to 2014-2017 GMC Sierra 1500 and Yukon models with integrated trailer brake systems. Some owners may comment on a Service Trailer Brake message in the DIC.

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TPMS Calibration

GM has recalled certain 2018 Chevy Express and GMC Savana vehicles built from August 2017 to November 2017 with certain combinations of front tire and gross vehicle weight option codes.

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It Might Not be the Belt

Some owners of 2017-2019 GMC Canyon vehicles equipped with a 3.6L engine may comment that the SES lamp is on or that the engine may have a slight squeak noise coming from the front of the engine belt area.

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Vehicle Fault or Driver Fault?

This bulletin applies to 2018 GMC Terrain and Acadia vehicles. The MIL may be on, with no drivability concerns. The technician may find DTC P2097 stored.

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