# Service bulletin PIT6304B

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: 11016150
- Published by NHTSA: 2025\-04\-01
- Manufacturer's number: PIT6304B
- Manufacturer's date: 2025\-03\-24
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016150-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016150-9999.pdf)

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

## Trouble codes named

C1197

## Vehicles listed

- 2024 to 2025 CHEVROLET SILVERADO EV
- 2024 to 2025 GMC SIERRA EV

JSON: [/v1/bulletins/11016150](/v1/bulletins/11016150)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20PIT6304B&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11016150&vehicle=Service%20bulletin%20PIT6304B)