# Service bulletin PIT5911B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10236151
- Published by NHTSA: 2023\-05\-15
- Manufacturer's number: PIT5911B
- Manufacturer's date: 2023\-04\-14
- NHTSA component: SUSPENSION

## NHTSA's summary

This Preliminary information communicates to the field that engineering contacts to assist in the diagnosis of Suspension concerns on the new 2022\-2024 HUMMER EV.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236151-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236151-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Suspension

## Vehicles listed

- 2022 to 2023 GMC HUMMER EV PICKUP
- 2024 GMC HUMMER EV SUV

## Other bulletins for the same vehicles and component

- [25\-NA\-152](/bulletins/11025555.md), 2025-11-15, Service bulletin: SUSPENSION. this bulletin advises the tech not to replace the shock for possible air leak, but to replace the air valve on the shock.
- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [05\-03\-07\-009L](/bulletins/11015409.md), 2025-03-08, Service bulletin: SUSPENSION; WHEELS. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
- [PIT6144F](/bulletins/11014635.md), 2025-03-02, Service bulletin: 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](/bulletins/11014299.md), 2025-02-18, Service bulletin: 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.
- [PIT6144D](/bulletins/11013392.md), 2025-02-03, Service bulletin: 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.
- [PIT6255](/bulletins/11011431.md), 2024-12-05, Service bulletin: SUSPENSION. This Preliminary information communicates a diagnostic tip when experiencing an error when trying to perfom a trim height learn or review pressure data in GDS
- [05\-03\-08\-002J](/bulletins/11007936.md), 2024-09-20, Service bulletin: SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- [05\-03\-08\-002J](/bulletins/11007935.md), 2024-09-20, Service bulletin: SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- [PIT6144A](/bulletins/11006356.md), 2024-08-14, Service bulletin: 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.

JSON: [/v1/bulletins/10236151](/v1/bulletins/10236151)

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