TSB A252528630-02 — Chevrolet Service campaign
A252528630-02 is a service campaign on file with NHTSA for the Chevrolet Trax, 2025–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. 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.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. A252528630-02 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years A252528630-02 names
| Vehicle | Model years |
|---|---|
| Chevrolet Trax | 2025, 2026 |
Every document filed under A252528630-02
| Document ID | Filed | Type |
|---|---|---|
| A252528630-02 | January 28, 2026 | Service campaign |
What A252528630-02 covers
Fuel system — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB A252528630-02?
A252528630-02 is a service campaign filed with NHTSA by Chevrolet, covering the Chevrolet Trax across the 2025–2026 model years. NHTSA's summary reads: 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.
Which vehicles does A252528630-02 cover?
NHTSA's file names Chevrolet Trax (2025–2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB A252528630-02 a recall, and is the repair free?
A252528630-02 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of A252528630-02?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under A252528630-02, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under A252528630-02. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.