{
  "owners": null,
  "title": "Navistar recall 21V837 (21507): 2020-2023 IC CE School Buses",
  "url": "https://carsmultiverse.com/recall/21v837/",
  "summary": "Recall 21V837 (Navistar): Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation pr...",
  "excerpt": "Ic Bus Cesb, model years 2020 to 2023. Filed by Navistar, Inc. and reported to NHTSA on 25 October 2021. 7,322 vehicles potentially affected. What the notice says Navistar, Inc. (Navistar) is recalling certain 2020-2023 IC CE school buses. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down. 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 Navistar's own number for this recall: 21507. That is the number on the owner letter and on the dealer paperwork. 21V837 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways. 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: “Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.” 21V837 Navistar, Inc. Engine And Engine Cooling:Engine:Engine Control Module (ECU/ECM) 25 October 2021 2020-2023 IC BUS CESB Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traff",
  "register": {
    "authority": "NHTSA",
    "country": "United States",
    "index": "https://carsmultiverse.com/changed/"
  },
  "datePublished": "2026-08-23T22:07:26+00:00",
  "dateModified": "2026-09-16T20:12:03+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Navistar recall 21V837 (21507): 2020-2023 IC CE School Buses\", https://carsmultiverse.com/recall/21v837/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}