2023 Chevrolet Colorado Engine

Radiator hose near failure, lose of coolant could be catastrophic. Upper Radiator hose quick disconnect O-ring inside failed.

Since Friday, February 23rd 2026 when my 2023 Chevy Colorado first start blowing oil out of the oil pan. almost 5 qts total was lost when it arrived at the dealership. Truck was out of service from Friday until the following Wednesday, January 28th. The truck was picked up and taken on a drive out to (January 29th, 2026) Waverly, KS from my hometown of Prairie Village, KS about 70 miles. On the way back home the truck went into safe mode at highway speeds. Lost all acceleration and barely made it off the side of the road before getting hit. Truck went back to dealership after being towed 70 miles. Where it was kept until Friday, February 6th. During this time at the dealership, they thought the problem was fixed, where again blew out all the oil while driving. Finally received the truck back. Check engine lights were still on but truck was holding oil and driving decent. Truck was doing fine until Monday February 16th. I was at a job and was driving home to finish the day. Again on the highway at highway speeds, truck goes into safe mode and limp it to gas station to again be empty on oil. It is still sitting there. Just last January the truck needed a new Transmission at 48,000 miles and at the same time a wirinig harness for the back-up camera needed replaced. Alot of things have been going wrong with this truck to be so new. It has cost me alot of out of pocket expenses.

Upper radiator hose leak.

The contact owns a 2023 Chevrolet Colorado. The contact stated that while driving, the vehicle decelerated from 70 MPH to 30 MPH. During the failure the check engine and traction control warning lights were illuminated. The vehicle was towed to the local dealer who diagnosed an engine cylinder misfire. No further information was available. The contact stated that the vehicle was serviced by the dealer on several occasions for the failure however, the failure persisted. The contact stated that the vehicle was unsafe to drive. The manufacturer was notified of the failure. The failure mileage was 3,000.

Upper radiator hose rubber grommet failing at 22k. Had a severe coolant leak coming from top radiator hose blowing back onto hot motor which could have turned into a fire quickly. I was lucky! A lot of GMC Canyons and Colorado's are all reporting the same problem around 22k miles. It is currently at Grossman Chevy Old Saybrook, CT for repair.

The contact owns a 2023 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the heater did not function as intended. The vehicle was driven to the residence. The contact checked the fluids and noticed that the oil dipstick was completely dry. In addition, the contact investigated and noticed that the oil had leaked all over the surface of the oil pan. The contact stated that the oil change warning light was later illuminated. In addition, the contact stated that the failure had occurred after leaving the dealer and an unknown recall repair was performed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The contact referenced a Customer Satisfaction Program; however, the vehicle was not included. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 49,900.

Upper radiator hoses are failing. Failed at 40k miles due to manufacturer defect of the part. Seeing owners complain about them leaking off the dealer lot and know 10+ that have had theirs fail around 30k miles.