NHTSA Complaint #11666766 — 2024 INEOS GRENADIER

The HVAC controller failure causes risk of burn to passengers. When operating the HVAC system on Air Conditioning, the system will direct heat from the engine bay without any temperature management resulting in hot engine air being sent through the HVAC system and out to the vents. In some circumstances the hot air is only sent through the rear vents and other times the system sends hot air to all vents with a high variability of when this occurs. In one experience, the hot air was only sent to the rear vents causing the rear vent’s metal knob to become very hot and resulted in my child burning their hand on the knob. The dealer has confirmed the issue on my vehicle and has ordered parts under warranty (currently on backorder for 30+ days) to resolve. The issue of the HVAC unit blowing hot air is common to many Ineos Grenadier vehicles according to the dealer and is also commonly raised on Grenadier vehicle forums. The immediate safety risk occurs when the heat is not apparent to the driver because the controller is only directing heat to the rear and the vent knob becomes a burn-point for passengers. This issue can occur regardless of the temperature setting on the driver controls whether being on auto or manual and the temperature setting of the HVAC set as cold air. My vehicle is available for inspection if requested.