Chevrolet Blazer EV 2024–2025 — technical service bulletin
Bulletin PIT6290A · NHTSA communication 11014300 · issued Feb 13, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2024–2025
model years
2
vehicle entries
Official summary
This Preliminary information communicates a vehicle may be encountered with a concern of heat blowing cold at times, a whistling noise and P0534. Any or all of these conditions may be noted by a technician or customer. The dealer technician is directed to test the temperature at the condenser check valve, inspect the valve and inspect the line for a possible issue with the opening in the line. A procedure is given to modify the line if needed.
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.