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BMW X3, X4 and Z4 starter relay fire risk

NHTSA campaign 25V636000 · Reported 2025-09-23 · BMW of North America, LLC

critical How serious is it? About this label

Serious — the overheating relay can cause a fire, so park the car outdoors and away from buildings until the free repair is done.

⚠ Park outside, away from buildings — fire risk. See all such recalls.

What's wrong, in plain English

The relay that switches power to the engine's starter can corrode. A corroded relay can overheat and short out, and that can start a fire. This recall also covers the Toyota Supra, which uses the same part. BMW says park outside and away from buildings until the repair is finished. Dealers replace the engine starter at no cost. Owner letters were mailed February 6, 2026, and these VINs became searchable on the NHTSA site in November 2025.

What you should do

1. Check your VIN at nhtsa.gov/recalls to confirm your vehicle is included.
2. Park outside and away from structures until it is repaired.
3. Call your BMW dealer or BMW at 1-800-525-7417 to schedule the free engine starter replacement.

Affected vehicles (13)

Show all 13 vehicles

Who to contact

BMW — official BMW recall lookup

Customer service: 1-800-525-7417

Toyota — official Toyota recall lookup

Customer service: 1-800-331-4331

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
Summary
BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
Safety risk
A short circuit in the starter relay may increase the risk of a fire.
Remedy
Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 14, 2025.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.