Chevrolet Blazer EV 2025 — technical service bulletin
Bulletin N25-249243 · NHTSA communication 11016019 · issued Mar 21, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025
model years
1
vehicle entries
Official summary
Update Title: Software Update GM N25-249243 Release Notes: Your vehicle keeps getting better. This software update includes the following, if your vehicle is equipped: Refinements: •Improves performance of front wiper heating system During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.