This informational bulletin advises the tech of a possible normal condition caused when the transmission...
GMC technical service bulletin 18NA359 for 2020 GMC Acadia, 2018-2020 GMC Terrain and 2018-2020 Buick Enclave and others.
- Bulletin number
- 18NA359
- Component
- Power train
- Summary
- This informational bulletin advises the tech of a possible normal condition caused when the transmission performs a 1-2 upshift at light throttle and why the D in the PRNDL will flash.
Owners of these vehicles have filed 214 complaints in the transmission category.
Vehicles covered
- GMC Acadia 2020 2020
- GMC Terrain 2018-2020 201820192020
- Buick Enclave 2018-2020 201820192020
- Buick Lacrosse 2018-2019 20182019
- Cadillac XT5 2020 2020
- Cadillac XT6 2020 2020
- Cadillac XT4 2019-2020 20192020
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