2026 Chevrolet Colorado Engine Problems

“The vehicle developed a rapid and moderate shudder followed by Check Engine , Service Traction Control , Service ESC messages and associated icons on the driver display. The shudder happened a second time within approximately 30 seconds and the engine lost power followed by Reduced Power Warning message. I engaged the emergency flashers and limped to the nearest side road. I had to stop on the road because of no shoulder. I waited there while assessing the situation and eventually was able to drive the short distance home. I disconnected the battery to reset the PCM. …”

“Component: Drivetrain, brake, and engine management systems repeatedly fail in a coordinated pattern, with multiple warning indicators activating simultaneously and sudden unintended deceleration occurring without warning. Vehicle available for inspection. Safety risk: Most recent failure occurred at highway speed with family including passengers in the vehicle. Without warning, the vehicle decelerated abruptly while multiple dashboard warnings activated at once. …”

“ECM Engine Control Module TCM Transmission Range Sensor TCM Transmission Control Module While driving in a 45 MPH speed zone in heavy traffic, the vehicle suddenly lost power and abruptly slowed down causing a number of other vehicles to have to break and swerve . Problem confirmed through ONSTAR Diagnosis As of this date, the GM dealer has not confirmed the problem. No other inspections have been confirmed. there were no warnings prior to the event.”