C1197 on GMC vehicles
C1197 is named on 10 GMC model years (2021–2025): 73 manufacturer filings and 0 owner reports in NHTSA’s files, across Yukon, Hummer EV, Sierra.
Which GMC model years name C1197
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2024 GMC Yukon | Suspension | 10 | — |
| 2023 GMC Yukon | Suspension | 10 | — |
| 2022 GMC Yukon | Suspension | 10 | — |
| 2021 GMC Yukon | Suspension | 9 | — |
| 2024 GMC Hummer EV | Suspension | 8 | — |
| 2025 GMC Yukon | Suspension | 6 | — |
| 2024 GMC Sierra | Suspension | 6 | — |
| 2023 GMC Hummer EV | Suspension | 6 | — |
| 2025 GMC Sierra | Not specified | 5 | — |
| 2025 GMC Hummer EV | Suspension | 3 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
GMC filings that name C1197
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names C1197. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIT6144D Service bulletin2025-01-29 · Suspension
- This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal issue with compressor assembly.
- PIT6144E Service bulletin2025-02-13 · Suspension
- This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal issue with compressor assembly.
- PIT6144F Service bulletin2025-02-27 · Suspension
- This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal issue with compressor assembly.
- PIT6144A Service bulletin2024-08-14 · Suspension
- 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.
- PIT6144 Service bulletin2024-03-28 · Electronic Stability Control — Automatic (Asc)
- 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.
- PIT6144B Service bulletin2024-09-11 · Suspension
- 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.
- PIT6304 Service bulletin2024-12-14 · Suspension
- This Preliminary information communicates a diagnostic Aid from root causing DTC: C1197 caused by a pinched air inlet hose to the suspension compressor air leveling system.
- PIT6304A Service bulletin2025-01-29 · Suspension
- This Preliminary information communicates a diagnostic Aid from root causing DTC: C1197 sym 92 caused by a pinched air inlet hose to the suspension compressor air leveling system.
- PIT6144G Service bulletin2025-04-18 · Unknown Or Other
- This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal software concern
- PIT6304B Service bulletin2025-03-24 · Unknown Or Other
- This Preliminary information communicates a diagnostic Aid from root causing DTC: C1197 sym 92 caused by a pinched air inlet hose to the suspension compressor air leveling system and update the software in the K5 automatic level ride control module.
What C1197 means
Source: SAE J2012 / OBD-IIC1197 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what GMC and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs C1197 a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 73 manufacturer filings and 0 owner reports naming C1197 on 10 GMC model years (2021–2025). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which GMC models does C1197 appear on most?
2024 Yukon (10 documents), 2023 Yukon (10 documents), 2022 Yukon (10 documents).
Does C1197 on a GMC mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.