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Recall campaign21V538000

Recall 21V538000: 2020–2021 Gillig LOW Floor

Engine and engine cooling › Exhaust system › Manifold/header/muffler/tail pipe
Report received
Jul 15, 2021
Manufacturer
Gillig, LLC
Potentially affected
78vehicles
Model years
2020–2021

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

Gillig, LLC (Gillig) is recalling certain 2020-2021 Low Floor vehicles equipped with Cummins L9 Diesel Engines. The engine calibration software's management of the injection of Diesel Exhaust Fluid can allow excessive ammonia into the tailpipe exhaust.

Possible consequence

Exposure to high levels of ammonia can increase the risk of injury.

Remedy

Cummins will recalibrate the engine, free of charge. Owners may contact Gillig's customer service at 1-510-264-5073 or 1-800-735-1500.

Affected model years

Pages for each model year show complaints, parts, mileage and other recalls.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.