Cadillac Escalade 2026 — technical service bulletin
Bulletin PIT6431 · NHTSA communication 11023143 · issued Sep 8, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2026
model years
15
vehicle entries
Official summary
This preliminarily information communication an issue with the supercruise dropping out when next to a merging lane and engineering is investigating.
Vehicles covered
- 2026 Cadillac Escalade
- 2026 Cadillac Escalade Esv
- 2026 Cadillac Escalade IQ
- 2026 Cadillac Escalade Iql
- 2026 Cadillac Lyriq
- 2026 Cadillac Optiq
- 2026 Chevrolet Equinox EV
- 2026 Chevrolet Silverado EV
- 2026 Chevrolet Suburban 1500
- 2026 Chevrolet Tahoe
- 2026 GMC Hummer EV Pickup
- 2026 GMC Hummer EV SUV
- 2026 GMC Sierra EV
- 2026 GMC Yukon
- 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.