2016–2019 IC Bus Cesb Recall: LPDM relay for the propane booster pump and the scavenge pump may…
NHTSA campaign 18V124000 · Electrical System · filed Feb 20, 2018 · verified Jul 30, 2026
The defect
Navistar, Inc. (Navistar) is recalling certain 2016-2019 IC bus CE school buses equipped with 8.8L liquid propane gas (LPG) engines. The LPDM relay for the propane booster pump and the scavenge pump may intermittently fail, causing the fuel pump to stop.
The risk
If the fuel pump stops, the bus will stall, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Navistar will notify owners, and dealers will replace the LPDM relay, free of charge. The recall began on April 12, 2018. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 18501.
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.
Affected vehicles
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Other campaigns involving IC Bus vehicles
Source: NHTSA recall database, campaign 18V124000 (manufacturer number 18501). Data last verified Jul 30, 2026.