NHTSA Complaint #11569073 — 2024 FORD F-350 SD

The contact owns 2024 Ford F-350 SD. The contact stated that the air recirculation system disengaged intermittently when the A/C was not set to MAX setting. The contact stated that while activating the heat in cold weather, the air recirculation system disengaged intermittently, causing outside air and a strong toxic odor to enter the cabin of the vehicle, causing health concerns. The manufacturer was notified of the failure and informed the contact that the vehicle was operating as designed, and that the air recirculation system could only remain engaged while the A/C was set to the MAX setting. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 400.