# Service bulletin PIT6402

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: 11019847
- Published by NHTSA: 2025\-06\-30
- Manufacturer's number: PIT6402
- Manufacturer's date: 2025\-06\-19
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates a software concern where the technician may not be able to update the software in the Automatic Level Control Module and a work around to resolve that concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019847-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019847-9999.pdf)

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

## Vehicles listed

- 2026 CADILLAC ESCALADE ESV IQL
- 2025 to 2026 CADILLAC ESCALADE IQ
- 2024 to 2026 CHEVROLET SILVERADO EV
- 2024 to 2026 GMC SIERRA EV

JSON: [/v1/bulletins/11019847](/v1/bulletins/11019847)

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