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Very Sluggish/Starts Chugging/Won't Downshift
2015 Chevrolet Colorado
This problem may be covered under warranty. Ask your Chevrolet dealer.
CarComplaints.com Notes: The 2015 Chevy Colorado has a significant trend of transmission problems.
Most owners reporting transmission problems with their 2015 Colorado report sluggish shifting or other similar problems with the truck not shifting properly. Although most of these 2015 Colorado trucks are still under warranty, it's not a good sign.
The Chevy Colorado is mechanically identical to the GMC Canyon.
7.6
pretty bad- Typical Repair Cost:
- $270
- Average Mileage:
- 9,300 miles
- Total Complaints:
- 18 complaints
Most Common Solutions:
- not sure (9 reports)
- software update? something to make it shift more firm? (6 reports)
- aftermarket computer program from trifecta (1 reports)
- replace torque converter (1 reports)
- trifecta tune (1 reports)
transmission problem
Helpful websites
- This Fixed My Transmission Problems - I heard about this tune from a local friend who also has this truck. I was skeptical because I didn't want to lose my warranty or spend any money, but after driving his truck, I just had to go for it. Downshifts happen when they're supposed to now, and it feels like how the truck SHOULD have come from the factory. I dont know what GM was thinking with the way they set it up, but at least theres a solution. Its not free so I don't know if this will get taken down, but it solved my problems so I'll submit this anyway. - Sean
A D V E R T I S E M E N T S
I have a 2015 Colorado with the same shifting, chugging hesitation issue. Most noticeable on uphill, stop/start traffic. My transmission fluid reached 180 degrees from all the upshift/downshifting issues. Today I took my truck to my local Chevy dealer and within 45 minutes they applied service bulletin update #18-NA-145. My truck has TWICE the initial power and NO shifting issues at all. It's like a brand new truck. This update cost me $130 and was NOT covered by any warranty although the dealer told me that any truck under 80K miles will get the software update free. ECM was also reprogrammed. VERY happy with the results! Hope this helps anyone with identical issues.
- Scott E., Oswego, US