This bulletin applies to 2016-2019 Chevy Corvette models equipped with LT1 or LT4 engines. If the SES lamp is on and the engine experiences misfires, and DTC P0300, P0308 or any cylinder numbers in-between are set, inspect for a possible loose spark plug wire at the ignition coil.
General Motors has recalled certain 2018 Chevrolet Equinox vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line, with the possibility of a fire.
Some owners of 2014-2018 Corvettes may comment about a Service Rear Differential message displayed on the DIC (driver information center).
This bulletin applies to all Chevrolet vehicles model years 2013-2018. When diagnosing multiple DTCs, one may be U****Byte 71. Any control module may set a DTC for one of its inputs and that data is shared across the communication bus for other modules to perform their respective functions.
This bulletin applies to 2017-2019 Chevy Colorado and GMC Canyon trucks equipped with a 3.6L engine. Some customers may comment of engine noise or engine failure shortly after an engine oil change and a MIL on.
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.
This bulletin applies to 2014-2017 Chevy Corvettes. The ABS, Service Traction Control System and/or Service Stabilitrak telltale lights may be on. During initial scan for EBCM module DTCs, you may find one or more DTC C0035-C0050 with specific symptom bytes 18, 5A, 0F.
This bulletin applies to 2015-2016 Chevy Corvette Z06 models equipped with the LT4 engine. Some owners may comment that the MIL is on with a DIC message displayed.
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.
General Motors advises inspection for piston damage when the MIL is on and the engine misfires and displays a ticking/knocking noise. This may be caused by an aftermarket ECM calibration/component and detonation that leads to melted pistons.
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