Some owners of 2014-2016 Cadillac XTS vehicles equipped with belt drive electronic power steering may comment on a Service Power Steering message displayed on the driver information center (DIC) after a cold start.

This bulletin is for 2013-2019 Cadillac ATS, 2004-2019 CTS, 2004-2016 SRX, 2004-2011 STS and 2013-2019 XTS vehicles.

This bulletin applies to 2018 and prior Cadillac and other gasoline-powered GM vehicles. 

Some owners of 2015 Cadillac Escalades equipped with a 5.3L L83 or 6.2L L86 engine may comment about a light. 

Some owners of 2013-2018 Cadillac vehicles equipped with an electronic parking brake (EPB) may comment that the red park brake light on the instrument panel intermittently comes on.

Some owners of 2016 Cadillac XTS vehicles may comment on a hard brake pedal on a cold start and/or a service brake assist message. 

2013-2017 Cadillac and other GM vehicles may exhibit hesitation or stalling issues during ambient temperatures of 100 degreesand higher, accompanied by DTCs P2635 and/or P018B.