This technical bulletin provides repair information to correct a customer concern of Service Engine Soon...
Chevrolet technical service bulletin 21NA214 for 2020 Chevrolet Silverado 2500, 2020 GMC Sierra 2500 and 2020 Chevrolet Silverado 3500 and others.
- Bulletin number
- 21NA214
- Component
- Power train: automatic transmission
- Summary
- This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp Illuminated, Harsh or Delayed Transmission Shifts Including Slip, Surge, Shudder, Noise, Whine, Growl, Shake and/or Vibration, DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 and/or P20EE Set Current or in Recent History.
Owners of these vehicles have filed 93 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 2500 2020 2020
- GMC Sierra 2500 2020 2020
- Chevrolet Silverado 3500 2020 2020
- GMC Sierra 3500 2020 2020
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