This bulletin applies to 2002-2018 Chevy Escalade, Avalanche, Express, Silverado, Tahoe and Suburban models, Cadillac Escalade, Hummer H and GMC Savana, Sierra and Yukon models.
Some owners of 2007-2019 Chevy Avalanche, Silverado, Suburban or Tahoe vehicles, GMC Sierra and Yukon vehicles and Cadillac Escalades may comment on unwanted Stability Activation and/or a Service Stability message.
Some 2017 Cadillac Escalade vehicles (in addition to Chevy Suburban and Tahoe and GMC Yukon) may have been assembled with the wrong fasteners retaining the brake master cylinder to the brake vacuum booster.
Several GM vehicle models may feature two distinctively different-looking per-cylinder valve-cover-mounted ignition coils. This is due to a supplier difference and, according to GM, does not affect performance or serviceability.
This bulletin applies to 2012-2014 Chevy Tahoe vehicles that exhibit unwanted grade braking, low power and/or a busy-shifting transmission. These issues may be caused by the BPP (brake pedal position) sensor not being learned correctly in the ECM.
This bulletin applies to 2012 - 2014 Chevy Tahoe vehicles. The MIL may be on, with DTC P057C and/or P057D; or cruise and brake light operation service stability message with DTC C0161 C0277 (check X205 connector).
Owners of 2012-2013 Chevy Tahoe vehicles may note a service engine soon light, a rough running engine, and/or oil consumption. Technicians may find DTC P0300 set.
This bulletin applies to 2007-2013 Chevy Avalanche, Silverado, Suburban and Tahoe; Cadillac Escalade; and GMC Sierra and Yukon models. During a low battery/voltage condition, the Passenger Presence System (PPS) may set a B1325 and/or B1000 along with other faults that are caused by a low battery/voltage condition.
This bulletin applies to 2012-2013 Chevy Tahoe Police vehicles equipped with StabiliTrak. The customer may comment that they are unable to disable the StabiliTrak by pressing and holding the TCS/StabiliTrak button for 5 seconds as the owner’s manual indicates.
Some owners of 2007-2013 Chevy Avalanche, Silverado, Suburban and Tahoe models may complain about a buzz or rattle noise during light acceleration around 1,200-2,000 rpm. The noise may also sound like a squeak, creak or tap coming from behind the instrument panel. This could be caused by the fuel line or fuel line bracket above the transmission contacting the floor pan.
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