Cadillac XTS parking brake motor failure affecting cruise control and brake pad wear on Cadillac XTS

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Cadillac XTS owners report experiencing parking brake motor failure, which can lead to improper engagement or release of the parking brake system. This issue may stem from various factors, including mechanical failures or problems with the actuator and cable tension. Additionally, this malfunction can affect the cruise control system, with common issues arising from failed control modules, sensor problems, or throttle actuation issues. In some cases, a failing throttle position sensor may cause the engine's computer to overcompensate with fuel, resulting in black exhaust emissions. Furthermore, if the parking brake motor failure is not addressed promptly, it can lead to excessive brake pad wear due to the parking brake not releasing properly. Therefore, it is crucial for owners to ensure the parking brake is functioning correctly to maintain overall vehicle performance and safety.

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