2019–2024 Nova Bus LFS, 2019–2023 Nova Bus LFS Artic Recall: Auxiliary heater module may allow contaminants to enter the electronic…
NHTSA campaign 24V657000 · Equipment · filed Sep 9, 2024 · verified Jul 30, 2026
The defect
Nova Bus (US) Inc. (Nova Bus) is recalling certain 2019-2024 LFS and 2019-2023 LFS Artic buses. The auxiliary heater module may allow contaminants to enter the electronic controller, which can cause an electrical short. Additionally, the auxiliary heater may fail, causing the defrosting system to not function properly.
The risk
An electrical short circuit can increase the risk of a fire. Additionally, a windshield defrosting system that does not function properly can decrease the driver's visibility, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Nova Bus will the auxiliary heater air intake, free of charge. Owner notification letters were mailed January 28, 2025. Owners may contact Nova Bus customer service at 1-800-350-6682. Nova Bus's number for this recall is CR5637.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
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Other campaigns involving Nova Bus vehicles
Source: NHTSA recall database, campaign 24V657000 (manufacturer number CR5637). Data last verified Jul 30, 2026.