# Service campaign N252541251\-01

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: 11035785
- Published by NHTSA: 2026\-08\-05
- Manufacturer's number: N252541251\-01
- Manufacturer's date: 2026\-08\-05
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Certain vehicles listed above may have a condition in which drivers may not be notified of a rear turn\-signal lamp failure. GM will update software calibrations in the vehicle’s exterior lighting control module. For vehicles that are capable of receiving software changes using wireless over\-the\-air \(OTA\) technology, owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes via OTA without having to bring their vehicle to a dealership. Alternatively, all owners may have the updates performed at a GM dealer.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035785-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035785-9999.pdf)

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

## Vehicles listed

- 2020 to 2021 CHEVROLET CORVETTE
- 2024 CHEVROLET CORVETTE

JSON: [/v1/bulletins/11035785](/v1/bulletins/11035785)

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