13120B
Chevrolet technical service bulletin G-166208 for 2013 Chevrolet Malibu, 2013 Chevrolet Equinox and 2013 GMC Acadia and others.
- Bulletin number
- G-166208
- Component
- Electrical system: software
- Summary
- 13120B - Service Update (population added; expiration date extended). Reprogram the transmission control module (TCM). The torque converter clutch solenoid in the TECHM can stick due to debris in the transmission. When the vehicle is at the end of a coast-down, as the vehicle is coming to a stop, a stuck solenoid will fail to release the torque converter clutch. This keeps the engine directly connected to the driven wheels. As the vehicle stops, the engine speed will be pulled down below normal idle speed and the engine may stall. The vehicle can be immediately restarted and driven. The reprogramming will install a revised calibration to correct this condition.
Owners of these vehicles have filed 663 complaints in the electrical category.
Vehicles covered
- Chevrolet Malibu 2013 2013
- Chevrolet Equinox 2013 2013
- GMC Acadia 2013 2013
- Chevrolet Traverse 2013 2013
- Cadillac SRX 2013 2013
- GMC Terrain 2013 2013
- Buick Enclave 2013 2013
- Cadillac XTS 2013 2013
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