Campaign 24V-727

Software error may cause the Vehicle Control Unit (VCU) to crash, disconnecting the high voltage batteries and causing a loss of drive power

Defect summary

Nova Bus (US) Inc. (Nova Bus) is recalling certain 2022-2023 LFS buses. A software error may cause the Vehicle Control Unit (VCU) to crash, disconnecting the high voltage batteries and causing a loss of drive power.

Consequence

A loss of drive power increases the risk of a crash.

Remedy

Nova Bus will validate and update the VCU software, free of charge. Owner notification letters were mailed November 2, 2024. Owners may contact Nova Bus customer service at 1-800-350-6682. Nova Bus's number for this recall is CR5643.

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 nhtsa.gov.

Source: NHTSA ODI recalls file, campaign 24V727000. Text as published by NHTSA.

Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about electrical system 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-727
Make	Model	Model years	Complaints on this component
Nova BUS	LFS	2022 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

26 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-275 Apr 30, 2026
Telemetry control unit installed in parallel with the vehicle monitoring system may cause a data overload
25V-213 Apr 7, 2025
Engine wiring harness may be the incorrect length, which can result in harness damage and a loss of drive power
25V-184 Apr 3, 2025
High voltage batteries may have loose hardware that can fall inside the battery pack and create a short circuit
24V-648 Sep 3, 2024
Instrument panel may fail to display the speedometer or incorrectly display warning lights, due to defective firmware
24V-421 Jun 7, 2024
Ground connection on the bus bar in the HVAC roof unit may not be secured properly, which can result in an unexpected engine shutdown or an…
24V-203 Mar 17, 2024
Alternator power cable nut may not have been tightened properly