# Service campaign N242450630

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: 11013227
- Published by NHTSA: 2025\-01\-29
- Manufacturer's number: N242450630
- Manufacturer's date: 2025\-01\-29
- Campaign id or software version: N242450630
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Service Update. Certain vehicles equipped with a 2.7L engine \(RPO L3B\), may have an Engine Control Module \(ECM\) that does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013227-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013227-9999.pdf)

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

## Vehicles listed

- 2021 to 2023 CADILLAC CT4
- 2022 CHEVROLET SILVERADO 1500
- 2022 GMC SIERRA 1500

JSON: [/v1/bulletins/11013227](/v1/bulletins/11013227)

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