Chevrolet Blazer EV 2024–2025 — technical service bulletin
Bulletin 625.10 · NHTSA communication 11023411 · issued Sep 3, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2024–2025
model years
2
vehicle entries
Official summary
This software update includes the following, if your vehicle is equipped: •Improvements to vehicle diagnostics. •Fixes to preserve battery life and improve charging. •Fixes to address issues with shifting. •Fixes for vehicle airflow in icy conditions. •Improvements to HVAC compressor performance. 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.