Cadillac CT5 2025–2026 — technical service bulletin
Bulletin PIT6411A · NHTSA communication 11022782 · issued Aug 30, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025–2026
model years
25
vehicle entries
Official summary
This information provides software update information for the K73 Telematics module to correct the symptoms described.
Vehicles covered
- 2025 Cadillac CT5
- 2026 Cadillac CT5
- 2025 Cadillac Escalade
- 2026 Cadillac Escalade
- 2025 Cadillac Escalade Esv
- 2026 Cadillac Escalade Esv
- 2025 Cadillac Escalade IQ
- 2026 Cadillac Escalade IQ
- 2025 Chevrolet Blazer EV
- 2026 Chevrolet Blazer EV
- 2025 Chevrolet Equinox
- 2026 Chevrolet Equinox
- 2025 Chevrolet Equinox EV
- 2026 Chevrolet Equinox EV
- 2026 Chevrolet Suburban 1500
- 2025 Chevrolet Tahoe
- 2026 Chevrolet Tahoe
- 2025 GMC Acadia
- 2026 GMC Acadia
- 2025 GMC Hummer EV Pickup
- 2026 GMC Hummer EV Pickup
- 2025 GMC Hummer EV SUV
- 2026 GMC Hummer EV SUV
- 2025 GMC Terrain
- 2026 GMC Terrain
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.