This informational bulletin advises the technician to verify the TCM is asleep before trying to repair the...
Chevrolet technical service bulletin 21NA106 for 2021 Chevrolet Silverado 1500, 2021 GMC Sierra 1500 and 2021 Chevrolet Silverado 2500 and others.
- Bulletin number
- 21NA106
- Component
- Power train
- Summary
- This informational bulletin advises the technician to verify the TCM is asleep before trying to repair the transmission in order for all the codes to be re-set.
Owners of these vehicles have filed 470 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 1500 2021 2021
- GMC Sierra 1500 2021 2021
- Chevrolet Silverado 2500 2021 2021
- Chevrolet Colorado 2021 2021
- GMC Sierra 2500 2021 2021
- GMC Canyon 2021 2021
- Chevrolet Express 2021 2021
- Cadillac Escalade ESV 2021 2021
- GMC Savana 2021 2021
- Cadillac CT5 2021 2021
- Cadillac CT4 2021 2021
- Cadillac Escalade Na 2021 2021
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