# Service campaign N262560680

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: 11033783
- Published by NHTSA: 2026\-06\-10
- Manufacturer's number: N262560680
- Manufacturer's date: 2026\-06\-10
- Campaign id or software version: N262560680
- NHTSA component: POWER TRAIN

## NHTSA's summary

Certain vehicles may have a condition in which the bolts for the transmission control valve body may be loose or missing. Dealers will retorque or replace the suspect valve body bolts.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033783-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033783-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2026 CHEVROLET SILVERADO 2500
- 2026 CHEVROLET SILVERADO 3500
- 2026 GMC SIERRA 2500
- 2026 GMC SIERRA 3500

## Recalls for the same vehicles and component

- [2026226](/recalls/tc/2026226.md), 2026-05-07: Powertrain
- [26V289000](/recalls/nhtsa/26V289000.md), 2026-05-07: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\)

## Other bulletins for the same vehicles and component

- [N262567720](/bulletins/11037330.md), 2026-09-17, Service campaign: POWER TRAIN. Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may result in hard shifting from the transmission and/or noise. Dealers will replace both transmission mounting bolts.

JSON: [/v1/bulletins/11033783](/v1/bulletins/11033783)

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