Brightdrop 600 Elcv 2024–2026 — technical service bulletin

Bulletin PIT6503B · NHTSA communication 11034014 · issued Jun 17, 2026

Technical service bulletin

communication type

Unknown OR Other

component

2024–2026

model years

vehicle entries

Official summary

This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

Vehicles covered

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.