Ford F-150 Lightning BEV 2024–2025 — technical service bulletin
Bulletin SSM 54803 · NHTSA communication 11032686 · issued May 5, 2026
Technical service bulletin
communication type
Electrical System
component
2024–2025
model years
2
vehicle entries
Official summary
Some 2025 Mustang Mach-E vehicles built on or before 30-Jun-2025 and 2024 F-150 Lightning vehicles may exhibit a flashing light on the air conditioning (A/C) button with a lack of heat and/or A/C with diagnostic trouble code (DTC) B1717:06 stored in the heat pump valve control module (HPVCM). This may be due to the software in the HPVCM. To correct the condition, reprogram the HPVCM using the latest software level of the Ford Diagnosis and Repair System (FDRS). If the DTC remains this may be due to the "Heat Pump Vacuum Lock Release Sequence" application performance in the Ford Diagnosis and R
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.