2023 Chevrolet Colorado problems

“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.”

“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”

“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…”

“My truck is in the shop for Engine Wiring Harness Chafe. they are making me pay 1200 dollars for an issue that is known by chevy. I feel like I should not have to pay”

“My 2023 Chevrolet Colorado ZR2 cannot receive over‑the‑air (OTA) software updates because the gateway module is still running outdated firmware (XXX.mnf). General Motors issued Service Update XXX to correct this defect by performing a vehicle‑wide programming update. However, GM’s system incorrectly shows the bulletin as “closed” for my VIN even though the gateway module was never updated. The truck was sold to me by Tyrell Chevrolet in [XXX] with this safety‑related service update not completed properly. The dealership has confirmed they cannot perform the required update because GM’s system will not authorize it until the bulletin is reopened. GM corporate has been contacted multiple times, but after several days they have not reopened the bulletin or provided a resolution. Because the gateway module remains on outdated firmware, the vehicle cannot receive critical OTA updates related to safety, diagnostics, and module stability. This condition has been reported by other 2023 Colorado owners and has previously been associated with battery‑drain issues caused by software modules failing to sleep properly. GM has acknowledged the defect by issuing Service…”

“Exterior headlamp surface coating/finish is delaminating/peeling from the OEM headlamp assembly. Dull headlamps pose safety risk as visibility is dimished. GM does not want to warranty defect, no reason given.”