2026 CHEVROLET COLORADO Complaints

The contact owns a 2026 Chevrolet Colorado. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The contact stated that after several attempts, the vehicle started, however the battery became drained. No warning lights were illuminated. After the battery was drained, the doors failed to unlatch, and the contact was stuck inside the vehicle. The tow truck driver arrived and assisted the contact with exiting the vehicle. The vehicle was towed to the dealer; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 5,800.

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.

The contact owns a 2026 Chevrolet Colorado. The contact stated that while driving 70 MPH with the adaptive cruise control engaged, while the vehicle was approaching another vehicle from the rear, the vehicle failed to automatically slow down. The contact depressed the brake pedal to get the vehicle to slow down as needed. No warning light was illuminated. A dealer was contacted. The vehicle was taken to the dealer, where it was diagnosed with a defective module, and that there was no replacement part available to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 2,100.

[INSTRUMENT CLUSTER BLACK-OUT] While driving on I-15S, suddenly the Instrument Cluster went completely dark for 5-10 seconds. A scary and alarming development.