Cadillac Escalade 2021–2022 — technical service bulletin
Bulletin N212355140-01 · NHTSA communication 10231844 · issued Feb 17, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
15
vehicle entries
Official summary
Service Update- Certain vehicles may have a condition where the engine control module calibrations can be enhanced to improve the accuracy of certain diagnostic tests. Dealers are to reprogram the engine control module.
Vehicles covered
- 2021 Cadillac Escalade
- 2022 Cadillac Escalade
- 2021 Cadillac Escalade Esv
- 2022 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2021 Chevrolet Suburban
- 2022 Chevrolet Suburban
- 2021 Chevrolet Suburban 1500
- 2022 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
- 2021 GMC Yukon
- 2022 GMC Yukon
- 2021 GMC Yukon XL
- 2022 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.