# Service bulletin PIT6212D

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: 11021312
- Published by NHTSA: 2025\-08\-04
- Manufacturer's number: PIT6212D
- Manufacturer's date: 2025\-07\-29
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021312-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021312-9999.pdf)

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

## Trouble codes named

C1114

## Vehicles listed

- 2024 to 2026 CADILLAC ESCALADE
- 2024 to 2026 CADILLAC ESCALADE ESV
- 2024 to 2026 CHEVROLET COLORADO
- 2024 to 2026 CHEVROLET SILVERADO 1500
- 2024 to 2026 CHEVROLET SILVERADO 2500
- 2024 to 2026 CHEVROLET SILVERADO 3500
- 2024 to 2026 CHEVROLET SILVERADO 4500
- 2024 to 2026 CHEVROLET SILVERADO 5500
- 2024 to 2026 CHEVROLET SILVERADO 6500
- 2024 to 2026 CHEVROLET SILVERADO EV
- 2024 to 2026 CHEVROLET SUBURBAN 1500
- 2024 to 2026 CHEVROLET TAHOE
- 2024 to 2026 GMC CANYON
- 2024 to 2026 GMC SIERRA 1500
- 2024 to 2026 GMC SIERRA 2500
- 2024 to 2026 GMC SIERRA 3500
- 2024 to 2026 GMC SIERRA EV
- 2024 to 2026 GMC YUKON
- 2024 to 2026 GMC YUKON XL

JSON: [/v1/bulletins/11021312](/v1/bulletins/11021312)

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