TSB PIT6519 — Buick, Cadillac, Chevrolet and GMC Service bulletin

PIT6519 is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet and GMC, covering 21 Buick, Cadillac, Chevrolet and GMC models across the 2022–2027 model years. NHTSA's summary reads: This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.

NHTSA's file names Buick Enclave (2025–2026); Cadillac Escalade (2023–2024); Chevrolet Blazer (2022–2026); Chevrolet Bolt EV (2022–2023, 2027); Chevrolet Camaro (2022–2024); Chevrolet Colorado (2022–2026); Chevrolet Corvette (2022–2025); Chevrolet Equinox (2022–2026); Chevrolet Malibu (2022–2025); Chevrolet Silverado 1500 (2022), and 11 more vehicles listed on this page. A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

No. PIT6519 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under PIT6519, its date, and NHTSA's own summary from the public file.