Buick Encore 2019–2021 — technical service bulletin

Bulletin 20-NA-218 · NHTSA communication 10213034 · issued May 19, 2022

Technical service bulletin

communication type

Engine and Engine Cooling

component

2019–2021

model years

vehicle entries

Official summary

This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.

Vehicles covered

2021 Buick Encore
2020 Buick Encore GX
2021 Buick Encore GX
2019 Buick Regal
2020 Buick Regal
2020 Cadillac CT5
2021 Cadillac Escalade
2021 Cadillac Escalade Esv
2021 Cadillac Escalade NA
2021 Chevrolet Camaro
2020 Chevrolet Corvette
2020 Chevrolet Equinox
2021 Chevrolet Equinox
2021 Chevrolet Express
2019 Chevrolet Malibu
2020 Chevrolet Malibu
2021 Chevrolet Malibu
2019 Chevrolet Silverado 1500
2020 Chevrolet Silverado 1500
2021 Chevrolet Silverado 1500
2020 Chevrolet Silverado 2500
2021 Chevrolet Silverado 2500
2020 Chevrolet Silverado 3500
2021 Chevrolet Silverado 3500
2021 Chevrolet Suburban
2021 Chevrolet Suburban 1500
2021 Chevrolet Tahoe
2020 Chevrolet Trailblazer
2021 Chevrolet Trailblazer
2021 GMC Savana
2019 GMC Sierra 1500
2020 GMC Sierra 1500
2021 GMC Sierra 1500
2020 GMC Sierra 2500
2021 GMC Sierra 2500
2020 GMC Sierra 3500
2021 GMC Sierra 3500
2020 GMC Terrain
2021 GMC Terrain
2021 GMC Yukon
2021 GMC Yukon XL

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.