Fire supression: sensorsRecall 23V-126 · Prevost vehicles
Prevost Car (US) Inc. recall 23V-126 covers 555 Prevost vehicles for a fire supression: sensors problem, reported to NHTSA on February 24, 2023. The manufacturer's latest report (2025 Q2) shows 60% of affected vehicles repaired.
Source: NHTSA recall 23V126000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
Prevost Car (US) Inc. (Prevost) is recalling certain 2018-2023 H3-45 motor coaches and H3-45 VIP motorhomes, and 2019 H3-41 motor coaches. The Automatic Fire Suppression System (AFSS) optical fire sensor positioned in the engine compartment's lower region may corrode and malfunction. In this event, the AFSS may give a false warning to the driver, command an unwarranted engine shutdown, and release a chemical fire extinguishing agent in the engine compartment.
The risk
The activation of the Automatic Fire Suppression System can cause a sudden loss of drive power, increasing the risk of a crash. Additionally, a disabled coach may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
The fix
Prevost will inspect the vehicles, install spacers between the optical fire sensor and bracket, and replace the optical fire sensor, if necessary, free of charge. Owner notification letters were mailed September 8, 2023. Owners may contact Prevost customer service at 1-866-870-2046. Prevost's number for this recall is SR23-05.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
60%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA. 3 vehicles were listed as unreachable.