Cadillac Escalade Esv 2025–2026 — technical service bulletin
Bulletin PIT6437 · NHTSA communication 11023904 · issued Oct 1, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025–2026
model years
14
vehicle entries
Official summary
This information provides software update information for the K73 Telematics module to correct the symptoms described.
Vehicles covered
- 2025 Cadillac Escalade Esv
- 2026 Cadillac Escalade Esv
- 2025 Cadillac Escalade IQ
- 2026 Cadillac Escalade IQ
- 2025 Chevrolet Suburban 1500
- 2026 Chevrolet Suburban 1500
- 2025 Chevrolet Tahoe
- 2026 Chevrolet Tahoe
- 2026 GMC Hummer EV Pickup
- 2026 GMC Hummer EV SUV
- 2025 GMC Yukon
- 2026 GMC Yukon
- 2025 GMC Yukon XL
- 2026 GMC Yukon XL
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.