Some owners of a 2016-2018 Cadillac XTS may comment that a vibration is felt in the seat under heavy acceleration around 20 mph. The condition may be caused by a second-order vibration (driveline shudder) from the cardan joint.
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.
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.
This bulletin applies to 2016-2019 Cadillac CTS-V and 2015-2019 Escalade vehicles equipped with a 6.2L LT4 or L86 engine. A vehicle may have a concern of the engine running hot and/or has a tick noise from the thermostat.
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 owners of 2016-2019 Cadillac ATS and 2014-2019 CTS Sedan vehicles equipped with a 3.6L engine may comment about a brief rattle or ticking noise that is heard when revving the engine in Park/Neutral.
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.
This bulletin applies to 2015-2018 Cadillac Escalade vehicles equipped with a 6.2L L86 (gasoline direct injection) engine. The customer may see an SES light on, possibly accompanied by a rough running engine.
This bulletin applies to 2015-2017 Cadillac Escalade vehicles. Some customers may comment about a temporary loss of electric power steering assist (EPS) followed by a sudden return of EPS assist, particularly during low-speed turning maneuvers. The loss and sudden return of EPS assist typically happens within a 1-second period and is caused by an electrical/software issue.
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