Buick Lacrosse 2019–2022 — technical service bulletin

Bulletin 21-NA-127 · NHTSA communication 10213496 · issued May 25, 2022

Technical service bulletin

communication type

Electrical System

component

2019–2022

model years

vehicle entries

Official summary

This service bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.

Vehicles covered

2019 Buick Lacrosse
2019 Cadillac XT4
2020 Cadillac XT4
2021 Cadillac XT4
2022 Cadillac XT4
2019 Cadillac XT5
2020 Cadillac XT5
2021 Cadillac XT5
2022 Cadillac XT5
2020 Cadillac XT6
2021 Cadillac XT6
2022 Cadillac XT6
2019 Chevrolet Camaro
2020 Chevrolet Camaro
2021 Chevrolet Camaro
2022 Chevrolet Camaro

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.