# Service campaign N252519860

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 campaign
- NHTSA id: 11035260
- Published by NHTSA: 2026\-07\-28
- Manufacturer's number: N252519860
- Manufacturer's date: 2026\-07\-28
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Certain vehicles listed above may have a condition in which the vehicle may shift out of park without key fob inside vehicle while in "Protected Idle" Mode. Dealers will update the BCM software. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over\-the\-air \(OTA\) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035260-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035260-9999.pdf)

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

## Vehicles listed

- 2023 to 2026 CHEVROLET SILVERADO 1500

JSON: [/v1/bulletins/11035260](/v1/bulletins/11035260)

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