Vehicle recall 20V457000 · August 5, 2020

Nova Bus LFS and LFS Artic

The pressure switches on these Drive Units may fail, possibly resulting in a loss of drive.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: Nova Bus (Nova) is recalling certain 2016 LFS and LFS Artic buses equipped with specific Allison Transmission drive units. The pressure switches on these Drive Units may fail, possibly resulting in a loss of drive.
Consequence: A loss of drive can disable the vehicle unexpectedly, increasing the risk of a crash. Additionally, offloading passengers to transfer them to another bus can increase the risk of injury.
Remedy: Nova will notify owners, and Allison Transmissions will replace the C1 and C2 pressure switches, free of charge. The recall began September 15, 2020. Owners may contact Nova customer service at 1-800-350-6682. Nova's number for this recall is CR4943.
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.safercar.gov.

Recall details

NHTSA campaign: 20V457000
Reported to NHTSA: August 5, 2020
Filed by: Nova Bus
Manufacturer campaign: CR4943
Owner notification: September 15, 2020
Vehicles potentially affected: 34
Initiated by: the manufacturer
Components: Power train › Automatic transmission

Recall 20V457000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Nova Bus LFS (2016): 2016
Nova Bus LFS Artic (2016): 2016

Has your Nova Bus been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

Check your VIN with NHTSA

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Nova Bus dealer can also check your VIN. Recall repairs are free.