Buick Enclave 2018–2025 — technical service bulletin

Bulletin 23-NA-163 · NHTSA communication 11016946 · issued Mar 13, 2025

Technical service bulletin

communication type

Electrical System

component

2018–2025

model years

vehicle entries

Official summary

This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set.

Vehicles covered

2018 Buick Enclave
2019 Buick Enclave
2020 Buick Enclave
2021 Buick Enclave
2022 Buick Enclave
2023 Buick Enclave
2024 Buick Enclave
2020 Buick Encore GX
2021 Buick Encore GX
2022 Buick Encore GX
2019 Buick Envision
2020 Buick Envision
2019 Buick Lacrosse
2019 Buick Regal
2020 Buick Regal
2019 Cadillac CT6
2020 Cadillac CT6
2021 Cadillac CT6
2019 Cadillac XT4
2020 Cadillac XT4
2021 Cadillac XT4
2022 Cadillac XT4
2023 Cadillac XT4
2018 Cadillac XT5
2019 Cadillac XT5
2020 Cadillac XT5
2021 Cadillac XT5
2022 Cadillac XT5
2023 Cadillac XT5
2024 Cadillac XT5
2025 Cadillac XT5
2020 Cadillac XT6
2021 Cadillac XT6
2022 Cadillac XT6
2023 Cadillac XT6
2024 Cadillac XT6
2025 Cadillac XT6
2019 Chevrolet Blazer
2020 Chevrolet Blazer
2021 Chevrolet Blazer
2022 Chevrolet Blazer
2023 Chevrolet Blazer
2024 Chevrolet Blazer
2025 Chevrolet Blazer
2019 Chevrolet Camaro
2020 Chevrolet Camaro
2021 Chevrolet Camaro
2022 Chevrolet Camaro
2023 Chevrolet Camaro
2024 Chevrolet Camaro
2019 Chevrolet Colorado
2020 Chevrolet Colorado
2021 Chevrolet Colorado
2022 Chevrolet Colorado
2019 Chevrolet Cruze
2018 Chevrolet Equinox
2019 Chevrolet Equinox
2020 Chevrolet Equinox
2021 Chevrolet Equinox
2022 Chevrolet Equinox

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.