{
  "owners": null,
  "title": "Gillig recall 21V538: 2020-2021 Low Floor",
  "url": "https://carsmultiverse.com/recall/21v538/",
  "summary": "Recall 21V538 (Gillig): Exposure to high levels of ammonia can increase the risk of injury.",
  "excerpt": "Gillig Low Floor, model years 2020 to 2021. Filed by Gillig, LLC and reported to NHTSA on 15 July 2021. 78 vehicles potentially affected. What the notice says 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. Is your vehicle included? Check with your VIN at NHTSA , or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on. CarsMultiverse / Recalls Answered from the register this site holds. NHTSA is the record to act on. What the authority says can happen if this is not fixed: “Exposure to high levels of ammonia can increase the risk of injury.” 21V538 Gillig, LLC Engine And Engine Cooling:Exhaust System:Manifold/Header/Muffler/Tail Pipe 15 July 2021 2020-2021 GILLIG LOW FLOOR Exposure to high levels of ammonia can increase the risk of injury. 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. This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass. This is one of 588 notices in the record whose component field names engine and engine cooling . Across t",
  "register": {
    "authority": "NHTSA",
    "country": "United States",
    "index": "https://carsmultiverse.com/changed/"
  },
  "datePublished": "2026-08-23T21:56:50+00:00",
  "dateModified": "2026-09-16T19:36:17+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Gillig recall 21V538: 2020-2021 Low Floor\", https://carsmultiverse.com/recall/21v538/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}