*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
Crankshaft Position Tone Wheel delaminated, mechanic changed it out and not sure what they did with it. Stalled vehicle on uphill passing lane during rush hour traffic, cars where inches from me as they passed at 65-70 mph, I called 911 and had a state trooper come and direct traffic. Joe's Garage inspected my vehicle and did the repair. It was not inspected by anyone besides Joe's Garage to my knowledge. No warning, dashlights came on after engine stalled.
Aug 25, 2026Exterior lighting
There are these "New" headlights that are LED and White and they are far to bright for oncoming traffic to the point that I see black spots that block the view of the road. To be clear they are not on my vehicle specifically, but a ton of the newer vehicles.
Aug 29, 2026Unknown or other
When shifted into drive, transmission hesitates to accelerate. Not all the time, some of the time.
Aug 11, 2026Engine
While driving at normal and safe highway speeds, without warning (no audible or visual warning from the vehicle information display) my vehicle experienced engine lockout, loss of all non-electric power, and no control over vehicle speed. A few seconds after loss, the information display did show a "check engine light" and that the engine was in "lockout." We (my spouse, young child, and self) were surrounded by multiple commercial semi-trucks and passenger vehicles and had to weave and serve to avoid collisions at highway speeds and get to the shoulder of the highway in a few seconds. The root cause as diagnosed by a Chevrolet Dealership Service Department was failure of the magnetic strip…
Jul 8, 2026Power train
I purchased the truck at the end of March 2025. Within a few weeks I was noticing different issues in the transmission. It would occasionally shudder, have jerky or long shifts, would jump gears and lose power. The shudder was random but mostly on the highway, the jerky or long shifts would mostly occur when the egjne was cold and more often in cold weather. The lose of power and jumping gears would occur when towing and when I was in the mountains, once losing power as I was turning onto a major highway. I took the truck in three times to get diagnosed but they couldnt replicate the issue or find a code. I finally decided to pay for a flush with the fluid that was recommended by a TSB.…
Apr 20, 2026Power train
66,500 miles transmission shudder. Scenic Chevrolet advised the torque converter failed and damaged the transmission.
Jul 11, 2026Electrical system › Ignition
The contact owns a 2018 Chevrolet Colorado. The contact stated that while the vehicle was parked, the key was difficult to remove from the ignition. The dealer was contacted and informed that the shift interlock switch failed to recognize that the transmission was shifted to park(P). The vehicle was not repaired. The manufacturer was contacted, but offered no assistance because the vehicle was not under warranty. The failure mileage was approximately 60,000.
Jul 15, 2024 · 60,000 milesElectrical system
My 2018 Chevrolet Colorado diesel has had repeated diesel emissions/DPF-related failures that cause the vehicle to enter reduced-power or limp mode. This is a safety issue because the truck suddenly loses power and cannot accelerate normally. The most serious incident occurred while driving over Santiam Pass in Oregon. The vehicle went into reduced-power/limp mode on a mountain highway, leaving me unable to maintain normal speed or accelerate safely. I lost power needed to pass traffic and had limited ability to respond to road conditions. The problem has happened several times. It has also occurred while I was towing my boat, which left me unable to continue the trip safely and created a…
Jul 7, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
