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Reply To: 2017 Buick Lacrosse and the Transmission

November 7, 2018 at 10:30 am #515070
gkellymath
Participant

I started getting “Service Transmission” error messages in my 2017 Lacrosse at 26,000 miles. The dealer was unable to diagnose the problem, even with help from GM. Transmission problems continued to occur intermittently, including multiple error messages and rough shifting at low speeds. Finally, at over 68,000 miles, the transmission failed completely while the car was at the dealer. The solution was to replace the electronic transmission control module, an expensive repair. The car has since worked perfectly for the last 1200 miles.
Unfortunately, General Motors refused to honor the bumper to bumper warranty even though the problem first occurred below 30,000 miles and it took GM over 40,000 miles to solve the problem. They also claimed that this wasn’t a transmission repair, so they said it wasn’t covered in the powertrain warranty. They ended up covering 60% of the cost, which was better than nothing, but they did not do the honest thing and completely honor the warranty.

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