Cadillac Lyriq 2022–2025 — technical service bulletin
Bulletin PIT6215A · NHTSA communication 11011434 · issued Oct 9, 2024
Technical service bulletin
communication type
Electrical System
component
2022–2025
model years
14
vehicle entries
Official summary
This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
Vehicles covered
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2024 Cadillac XT4
- 2024 Chevrolet Blazer EV
- 2023 Chevrolet Colorado
- 2024 Chevrolet Silverado EV
- 2025 Chevrolet Silverado EV
- 2023 GMC Canyon
- 2022 GMC Hummer EV Pickup
- 2023 GMC Hummer EV Pickup
- 2024 GMC Hummer EV Pickup
- 2024 GMC Sierra EV
- 2025 GMC Sierra EV
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.