Campaign 24V-657

Auxiliary heater module may allow contaminants to enter the electronic controller, which can cause an electrical short

Defect summary

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.

Consequence

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.

Remedy

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.

Notes

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.

Source: NHTSA ODI recalls file, campaign 24V657000. Text as published by NHTSA.

Vehicles covered

2 product lines are covered

Owner complaints filed with NHTSA about equipment on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 24V-657
Make	Model	Model years	Complaints on this component
Nova BUS	LFS	2019 to 2024	0
Nova BUS	LFS Artic	2019 to 2023	0

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

15 service bulletins on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

26V-624 Sep 29, 2026
Mounting screws may be too short, stripping the threads and causing the bike rack to detach
23V-763 Nov 11, 2023
Brackets retaining the Mobile Climate Control HVAC Unit could fail and allow the unit to detach from the bus
22V-323 May 11, 2022
Momentary STOP and YIELD text message board is duplicating the stop light and turn signal light signals
16V-412 Jun 8, 2016
Affected transit buses have destinations signs that may not be properly secured and, as a result, the sign may fall