This informational bulletin explains DTC U0121 sets due to a software anomaly and does not turn the MIL on...
GMC technical service bulletin 16-NA-177 for 2017 GMC Acadia, 2017 Chevrolet Bolt EV and 2017 Cadillac XT5.
- Bulletin number
- 16-NA-177
- Component
- Electrical system: software
- Summary
- This informational bulletin explains DTC U0121 sets due to a software anomaly and does not turn the MIL on or change performance of the vehicle.
Owners of these vehicles have filed 328 complaints in the electrical category.
Vehicles covered
- GMC Acadia 2017 2017
- Chevrolet Bolt EV 2017 2017
- Cadillac XT5 2017 2017
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