Navistar, Inc. (Navistar) is recalling certain 2019 International CV vehicles equipped with Duramax 6.6 liter diesel engines and an optional engine-block heater (feature code 12XBL). The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.
A short-circuit may damage the engine components and increase the risk of fire.
Navistar will notify owners and dealers will replace the engine block heater, free of charge. Navistar issued owners an interim notification on May 31, 2019. A second letter will be mailed when the remedy becomes available. The recall began November 14, 2019. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 19508.
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.