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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11028657
Published by NHTSA2026-02-09
Manufacturer's numberA252528630-03
Manufacturer's date2026-02-09
Campaign id or software versionA252528630-03
NHTSA componentFUEL/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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
BUICK ENVISTA2025, 2026
CHEVROLET TRAX2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
A252528630-022026-01-28. Service campaign. 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.
A252528630-012026-01-07. Service campaign. 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.
A2525286302025-12-09. Service campaign. 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-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
PIE0810A2025-01-28. Service bulletin. 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).
PIP5929A2024-12-20. Service bulletin. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
05-06-04-022V2024-09-05. Service bulletin. 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-3832024-07-16. Service bulletin. 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.
04-06-04-051I2024-07-16. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.