Buick Enclave 2020–2021 — technical service bulletin

Bulletin 21NA061 · NHTSA communication 10192031 · issued Mar 22, 2021

Technical service bulletin

communication type

Electrical System

component

2020–2021

model years

vehicle entries

Official summary

This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).

Vehicles covered

2020 Buick Enclave
2021 Buick Enclave
2020 Buick Encore
2021 Buick Encore
2020 Buick Encore GX
2021 Buick Encore GX
2020 Buick Envision
2021 Buick Envision
2020 Buick Regal
2020 Cadillac CT4
2021 Cadillac CT4
2020 Cadillac CT5
2021 Cadillac CT5
2020 Cadillac CT6
2020 Cadillac Escalade
2020 Cadillac Escalade Esv
2021 Cadillac Escalade Esv
2021 Cadillac Escalade NA
2020 Cadillac XT4
2021 Cadillac XT4
2020 Cadillac XT5
2021 Cadillac XT5
2020 Cadillac XT6
2021 Cadillac XT6
2020 Chevrolet 3500
2020 Chevrolet 4500HD
2021 Chevrolet 4500XD
2020 Chevrolet 5500HD
2020 Chevrolet Blazer
2021 Chevrolet Blazer
2020 Chevrolet Bolt EV
2021 Chevrolet Bolt EV
2020 Chevrolet Camaro
2021 Chevrolet Camaro
2020 Chevrolet Colorado
2021 Chevrolet Colorado
2020 Chevrolet Corvette
2021 Chevrolet Corvette
2020 Chevrolet Equinox
2021 Chevrolet Equinox
2020 Chevrolet Express
2021 Chevrolet Express
2020 Chevrolet Impala
2020 Chevrolet Malibu
2021 Chevrolet Malibu
2020 Chevrolet Silverado 1500
2021 Chevrolet Silverado 1500
2020 Chevrolet Silverado 2500
2021 Chevrolet Silverado 2500
2021 Chevrolet Silverado 3500
2020 Chevrolet Silverado 4500
2020 Chevrolet Sonic
2020 Chevrolet Spark
2021 Chevrolet Spark
2020 Chevrolet Suburban
2021 Chevrolet Suburban
2020 Chevrolet Tahoe
2021 Chevrolet Tahoe
2020 Chevrolet Trailblazer
2021 Chevrolet Trailblazer

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.