
When you buy a new vehicle, you expect reliability, especially if you take good care of it. But what happens if your truck still has problems, and the dealership makes things worse?
Steve S., a Chevy Colorado Z71 owner, shared his experience after taking his truck to the dealership for repairs. He posted a comment about his experience, and his story reveals a problem many vehicle owners face: not just mechanical issues, but how dealerships handle repairs.
Steve’s truck, a 2019 Chevy Colorado Z71, was serviced at the dealership since he bought it new. He had all the maintenance done early, including transmission fluid changes. Despite this care, at 55,422 miles, the transmission control module code came up. The dealer replaced the valve body in the transmission, a job expected to take a day. However, it took nearly three weeks and cost over $2,500.
On picking up the truck, the check engine light came on—a code related to the coolant temperature sensor—and the dealer wanted another $1,300 to fix it. Steve traded in the truck and took a loss.
Dealership Service Challenges
Steve’s story highlights a few crucial issues. The three-week delay for a one-day repair raises questions about the service center’s efficiency. The new problem and high repair quote suggest a potentially inept dealer.
Common Issues
Steve’s transmission control module problem isn’t isolated. Some 2019 Chevy Colorado owners have reported similar issues, especially concerning the 8-speed automatic transmission. These problems included hard shifting, torque converter shudder, and some electronic issues. GM has issued service bulletins to address these issues. Many owners have had positive outcomes after following recommended maintenance, such as early transmission fluid changes.
Another issue, as Steve found out, is the coolant temperature sensor failure. This sensor helps with engine performance, and its failure can lead to temperature issues, reduced fuel efficiency, or limp mode. Although $1,300 for a replacement might seem high, some owners have chosen to use independent mechanics or do the repairs themselves to cut costs.

Chevrolet has been making strides in improving the Colorado. The 2023 Chevrolet Colorado has won awards, showing that GM keeps refining and improving the midsize truck lineup. Furthermore, the 2024 Chevy Colorado ZR2 Bison offers some of the best-in-class features for off-road performance, and the 2024 Chevrolet Colorado has proven itself as one of the best midsize trucks for handling steep grades and rough terrain.
Colorado vs. Competitors
Despite the problems, the Chevy Colorado Z71 holds its own in the midsize truck market. It is more comfortable than some rivals due to its well-tuned suspension.
The Z71 off-road package is quite capable as well. The Colorado, for example, offers a diesel engine option, which is great for fuel economy and torque, making it a good choice for those who need a midsize truck for towing. The Tacoma is often criticized for its interior and outdated transmission, and the Ford Ranger, while powerful, has a stiff ride. Therefore, while the Chevy Colorado has issues, it brings a lot to the table that is worth considering.
What’s Your Experience?
Steve’s experience brings up an important question: Was the real problem with the truck, or was it the dealership’s poor service? Have you had similar experiences with long repair times or problems after repairs? If you own a Chevy Colorado, how does it perform compared to other trucks?