Cadillac Escalade Esv 2025–2026 — technical service bulletin
Bulletin PIT6437 · NHTSA communication 11023904 · issued Oct 1, 2025
Technical service bulletin
communication type
Unknown OR 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.