TSBs

Cadillac's Experiencing Loss of Electric Power Steering

Nov. 23, 2022

Some owners of 2015-2017 Cadillac Escalade vehicles may complain about a temporary loss of electric power steering (EPS) assist followed by a sudden return of EPS assist, particularly during low speed turning.

Information courtesy of Mitchell 1

Mike Mavrigian

This may be felt as a steering jerk, kick, whip of lock-up. The loss and sudden return of EPS assist typically happens within a one second period and is caused by an electrical/software issue. This may be due to a sudden loss of voltage to the EPS system, as the EPS turns off and then back on as the voltage returns when the EPS load is removed. To prevent this issue, a revised EPS module software has been developed to reduce this toggling event.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.