2023 Chevrolet Colorado Engine Problems

Your truck has been losing large amounts of oil from the oil pan multiple times since late February 2026, causing the engine to shut down into safe mode at highway speeds and leaving you stranded. This has happened at least three times despite dealership repairs, with the truck losing nearly 5 quarts each time and forcing you to limp to safety on the roadside. The issue may require replacing the oil pan, gaskets, seals, or diagnosing why oil is escaping from the engine system.

Your upper radiator hose may fail prematurely, potentially as early as 20,000 miles. This is a cooling system component, and if it fails, your engine could overheat and be permanently damaged. The problem appears to be caused by a poor-quality rubber seal where the hose connects to the radiator. Replacing the upper radiator hose and inspecting the seal design may be necessary to prevent overheating.

Your upper radiator hose quick disconnect has a failed O-ring inside, causing coolant to leak. If the coolant continues to leak, your engine could overheat and suffer serious damage. The fix will involve replacing the O-ring or the entire quick disconnect coupling.

Your upper radiator hose is leaking coolant. This can cause your engine to overheat if the coolant level drops too low. The fix will likely involve replacing the upper radiator hose and checking the cooling system for any other damage.

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.

I was driving down the highway going about 75mph in the left lane. The engine quickly started going down through the gears as the engine was shutting down. I was able to get it to the right side in very heavy traffic. I had to be towed. It took a 5 day repair and replacement of the fuel pump power control module. Warranty

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.

2 incidents. 1. The blind spot indication (driver side) gives false readings sometimes. Will light up at various times in clear weather with no vehicle next to me. Sensors checked and were clean. 2. The vehicle had a dead battery. It was jumped by roadside assistance. When started, the vehicle had a check engine light. I called Onstar (hands free function built in) to diagnose the problem while driving to charge the battery. Onstar told me what it said and indicated I should take it to the dealer. When I attempted to merge onto OK-51 the vehicle suddenly stopped accelerating without warning causing me to nearly miss another vehicle while merging. When I looked down at the IP, a message came up saying vehicle limited to 62 mph. I wasn’t previously warned or told by Onstar that this would happen (I was still talking to Onstar when it happened and the customer service representative sounded surprised). I did not collide with the vehicle but the other vehicle had to take evasive maneuvers to avoid my unintentional slow merge.