Cadillac Escalade 2021–2024 — technical service bulletin
Bulletin PIT6144B · NHTSA communication 11007692 · issued Sep 11, 2024
Technical service bulletin
communication type
Suspension
component
2021–2024
model years
15
vehicle entries
Official summary
This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 caused by a pinched air inlet hose to the suspension compressor air leveling system.
Vehicles covered
- 2021 Cadillac Escalade
- 2022 Cadillac Escalade
- 2023 Cadillac Escalade
- 2024 Cadillac Escalade
- 2024 Chevrolet Silverado EV
- 2021 Chevrolet Suburban 1500
- 2022 Chevrolet Suburban 1500
- 2023 Chevrolet Suburban 1500
- 2024 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
- 2023 Chevrolet Tahoe
- 2024 Chevrolet Tahoe
- 2024 GMC Hummer EV Pickup
- 2024 GMC Sierra EV
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.