# Service campaign A252528630\-03

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: 11028657
- Published by NHTSA: 2026\-02\-09
- Manufacturer's number: A252528630\-03
- Manufacturer's date: 2026\-02\-09
- Campaign id or software version: A252528630\-03
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the fuel injectors may not be able to properly optimize engine fueling. Dealers will reprogram the engine control module.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028657-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028657-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- 2025 to 2026 BUICK ENVISTA
- 2025 to 2026 CHEVROLET TRAX

## Other bulletins for the same vehicles and component

- [A252528630\-02](/bulletins/11027827.md), 2026-01-28, Service campaign: FUEL/PROPULSION SYSTEM. Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the fuel injectors may not be able to properly optimize engine fueling. Dealers will reprogram the engine control module.
- [A252528630\-01](/bulletins/11027289.md), 2026-01-07, Service campaign: FUEL/PROPULSION SYSTEM. Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the fuel injectors may not be able to properly optimize engine fueling. Dealers will replace the engine’s three fuel injectors.
- [A252528630](/bulletins/11026502.md), 2025-12-09, Service campaign: FUEL/PROPULSION SYSTEM. Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the fuel injectors may not be able to properly optimize engine fueling. Dealers will replace the engine’s three fuel injectors.
- [25\-NA\-065](/bulletins/11017173.md), 2025-04-24, Service bulletin: STEERING; SERVICE BRAKES; FUEL/PROPULSION SYSTEM. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- [PIE0810A](/bulletins/11013147.md), 2025-01-28, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; ENGINE. This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to he Malfunction Indicator Lamp \(MIL\) illuminated on the Driver Information Center \(DIC\).
- [PIP5929A](/bulletins/11012013.md), 2024-12-20, Service bulletin: FUEL/PROPULSION SYSTEM. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
- [05\-06\-04\-022V](/bulletins/11007095.md), 2024-09-05, Service bulletin: FUEL/PROPULSION SYSTEM. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
- [16\-NA\-383](/bulletins/11004761.md), 2024-07-16, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [04\-06\-04\-051I](/bulletins/11004727.md), 2024-07-16, Service bulletin: FUEL/PROPULSION SYSTEM. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

JSON: [/v1/bulletins/11028657](/v1/bulletins/11028657)

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