2023 Chevrolet Colorado

On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is opening this Engineering Analysis to further assess the safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

While driving on freeway started losing speed and felt a sudden jolt/ break. This has happened three times in the last year. No accidents but can easily cause an accident.

NHTSA ID

11776592

Incident

Nov 6, 2026

Pressed on the brake pedal while driving it went to the floor, warning lights illuminated and braking ability was severely decreased. Truck was limited to 45 mph. Hard to stop. Stopping distance greatly increased.

NHTSA ID

11776495

Incident

Nov 7, 2026

I am following up on a VOQ already filed about my vehicle breaking down due to a defective fuel pump control module. GM has an emissions warranty for this issue, but it should be a safety recall. In addition, my vehicle was not included in the affected vehicle population. I had to pay $125 to have my vehicle towed, so I requested reimbursement from GM. GM will only reimburse $78. This should be covered as a safety recall, as the vehicle completely lost all power on the road, with no warning or indication that something was wrong

NHTSA ID

11776227

Incident

Oct 1, 2026

While driving the brake pedal becomes hard, followed by message stating the vehicle is limited to 43mph. Additionally, the following 2 messages are also displayed on the dashboard 1. Service brake system 2 Brake system failure. I noticed this on 31Oct2026, but it would only occur when i am at a stopped and the automatic start-stop is deployed. On 03Nov2026 I was driving on a busy road during rush hour and I lost the ability to brake to which I had to make a hard right on a not busy industrial road to which I ran over a curb at high rate of speed (due to my inability to brake) and my vehicle almost flipped over to which i had my young son in the vehicle with me.

NHTSA ID

11775617

Incident

Nov 3, 2026

I took my truck in to the dealership for a recall on the faulty radiator hose and told them that I had a break sensor warning pop up on my screen. Today, I was informed that the break pads and sensor are damaged, the pads are worn out and that the rotors are damaged and need turned. I barely have 20,000 miles on this truck that I bought brand new! I was then informed that the warranty expired on the breaks at 7500 miles and that I need to pay about $600 to have the breaks fixed! I paid almost $50,000 for this truck and the breaks are already bad!!!??? I did a search online and found that many, many people are having this very issue, and in fact my own brother got rid of his 2023 Colorado for a break issue. GM is ignoring a real safety issue here! Just like they ignored the faulty radiator hose seal issue that I took this truck back in for 3 times, (before GM sent a recall letter out for-they finally admitted there was a problem!) Car forums are loaded with people complaining about the breaks and all are saying GM is ignoring the problem. I tried calling GM to complain and was told "sorry, nothing we can do". This is BS. They need to stand behind their product and FIX it at THEIR expense.

NHTSA ID

11774103

Incident

Sep 12, 2026

While driving, the vehicles internal computer system seized, completely shutting down and restarting itself over the course of 30 seconds. During and after this event, the brakes, power steering, and restraint system all became inoperable. Brakes failed to engage and power steering did not function. The issue resolved itself after turning the vehicle completely off and back on again. Brakes, power steering, and the restraint system have operated off and on over the past week since the event happened

NHTSA ID

11770805

Incident

Oct 3, 2026

While driving on approximately September 24, 2026, the instrument cluster and infotainment screens went completely black — total loss of speedometer, gauges, warning indicators, and all readouts. The screens restarted on their own after a few minutes. Since then, on startup the screens remain completely black until the 12V battery is disconnected and reconnected, which temporarily restores them before the blackout recurs. This has happened 4 times total at approximately 50,000 miles. No crash or injury occurred. This is a safety concern because the driver loses the speedometer and all warning indicators while driving. The vehicle is currently at the dealership for diagnosis of this issue (Group 1 GMC Westside, 955 Crockett St, El Paso, TX 79922) and had not been seen by a dealer for this issue before today.

NHTSA ID

11768272

Incident

Sep 24, 2026

After shifting to drive the vehicle had no brakes. A week or so earlier the check engine light came on. Messages on the screen said brake system failure along with other messages. Took to dealership, an update was installed. Last Wednesday engine light reappeared with the same messages but didn’t have time to return it to the dealership so parked it until today. Today was the brake failure. Returned to dealership, they replaced the battery and said the brake issue is fixed. I’m not convinced this fixed the issue and believe this could get someone seriously injured or killed.

NHTSA ID

11766014

Incident

Sep 21, 2026

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This preliminary information advises dealers that Engine Control Module designation E01 is on a ordering restriction through technical assistance.

• Fixes to help ensure proper functionality for heating and cooling features • Improvements to night mode lights for shifting gears • Fixes for Daytime Running Lamps turning on when set to Off • Fixes to help prevent erroneous missing key messages on driver display • Fixes for accuracy of low tire pressure alert • Improves transmission diagnostic software • Fixes for speed threshold for pedestrian alerts • Fixes a known iPhone 15 charging issue that affects some devices