GMC Terrain delayed engine restart when releasing brake on a hill causing rollback issue on GMC Terrain

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

Problem overview

Some GMC Terrain owners report experiencing delayed engine restarts after releasing the brake on a hill, which can lead to rollback issues. This delay may be associated with problems in the Electronic Brake Control Module (EBCM) or a faulty brake pedal switch that affects the communication with the control module and the operation of the brake lights. Additionally, some owners have noted that issues with the engine cooling system can cause stalling, further contributing to restart delays on inclines. Understanding the specifics of the engine, such as the turbocharged 1.5L I4 LYX gasoline engine, can also shed light on potential performance issues. It is recommended that owners seek professional assistance to diagnose and resolve these concerns effectively.

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