Gillig – Excessive Ammonia in Tailpipe Exhaust

Gillig (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.


Report Received Date 07/15/2021
NHTSA ID 21V538000
Consequence Summary Exposure to high levels of ammonia can increase the risk of injury.
Corrective Action 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.
Recall Code NR (Not Reported)
Potentially Affected 78
Fire Risk When Parked No
Do Not Drive No
Recall Link Go to Recall (https://www.nhtsa.gov/recalls?nhtsaId=21V538000)

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