Owners of 2015-2016 Cadillac Escalade vehicles may comment that they smell coolant while driving or when outside of the vehicle. A coolant leak may be found under the front of the vehicle.
This bulletin applies to 2015-2018 Cadillac Escalade vehicles equipped with a 6.2L engine. The SES lamp may be illuminated. DTCs P2635, U0074 and/or U18A2 may be set.
The bulletin discusses module damage from incorrect AFIT usage on GM vehicles equipped with direct fuel injection.
Owners of 2017-2019 GM vehicles, such as GMC Canyon and Acadia vehicles equipped with a 3.6L engine, may complain about a rattle, tick or knock type noise.
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.
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