2021 Nova Bus LFS Recall: Vehicle multiplex software may unexpectedly cause the door system…

NHTSA campaign 21V929000 · Electrical System · filed Nov 26, 2021 · verified Jul 30, 2026

Units reported

125

Manufacturer

Nova Bus (US) Inc.

Risk

Crash / injury

Owner letters

Mailing began Dec 15, 2021

The defect

Nova Bus (US) Inc. (Nova) is recalling certain 2021 LFS buses. The vehicle multiplex software may unexpectedly cause the door system electronic control module (ECM) to open and close the rear passenger door when the bus stops.

The risk

A passenger may exit the bus in an unsafe location if the rear passenger door opens unexpectedly, increasing the risk of injury. Additionally, the doors may unexpectedly close on an exiting passenger, increasing the risk of injury.

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 provide instructions for how to update the vehicle multiplex and door system ECM software, and install a hardware dedicated wire kit, free of charge. Owner notification letters were mailed December 15, 2021. Owners may contact Nova customer service at 1-800-350-6682. Nova's number for this recall is CR5220/5221/5222.

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

Make	Model	Model years
Nova Bus	LFS	2021

Related recalls

More Nova Bus LFS recalls

Other campaigns involving Nova Bus vehicles

All Nova Bus LFS recalls → · All Nova Bus recalls →

Source: NHTSA recall database, campaign 21V929000 (manufacturer number CR5220/5221/5222). Data last verified Jul 30, 2026.