2024 INEOS Grenadier owner complaints
23 complaints filed with NHTSA, including 0 crashes, 0 fires, 2 injuries and 0 deaths.
Problems by component
Service Brakes, Hydraulic1 Recent complaints
October 27, 2026Power Train
At approximately 28k miles my dealer, during routine maintenance, noticed the front driveshaft boot had torn and was weeping grease. They replaced this driveshaft under warranty (5 year, 60k miles). Fast forward to 114k miles and after a throttle body failure and requesting an oil change the dealer noticed that the front driveshaft boot had torn and all the grease was out with some rust present. This time the manufacturer would not honor any warranty claim due to exceeding the mileage. Much of my driving is highway and I would have to say that the boot for the driveshaft is not designed appropriately for the application. This is a known issue with the vehicle and any dealer is aware to look
May 11, 2026Unknown or Other
HVAC system is erratic and can blow VERY hot air when set to cool, so hot that it burned the top of my feet while driving and forced me to exit the freeway and shut the vehicle down. This failure is random, and properly written fault-tolerant software should NOT allow this condition to happen; it would be better to shut the system off than to cause blisters on people's feet or blowing 140+ deg air when it is only 110° outside. Also, the HVAC system, when malfunctioning, cannot be turned off... it continues to blow hot air. I have taken it to the dealer 3 times with no HVAC resolution, and have been waiting for Ineos to provide a solution.
May 11, 2026Steering
While driving my Ineos Grenadier in the middle of the Arizona desert, the steering suddenly became difficult to control due to a tie rod nut coming loose. The vehicle began wandering and required constant correction to maintain control, creating a serious safety concern in a remote area far from immediate assistance. There were no warning lamps, messages, or alerts displayed inside the vehicle before or during the incident. Just one week prior, the steering and front end components had been inspected by an authorized dealer during service, and no issues were identified at that time. Upon inspection after the incident, the tie rod hardware was found loose, which could have resulted in a compl
March 13, 2026Electrical SystemService Brakes
I have a 2024 INEOS Grenadier with the factory installed Tow Package. While the Grenadier does not offer an Electric Brake Controller as an an option, they do market the vehicle as being pre-wired to accept aftermarket controller thereby allowing the vehicle to pull the maximum tow weight of 7600 pounds. The problem is the wiring does not conform to US requirements with regard to the brake signal trigger and as a result it is not possible to activate the brake controller. This is a known manufacturing defect affecting every Grenadier sold in the US. I have contacted INEOS regarding this matter and this is their reply: Hi [XXX] , Thanks for contacting INEOS Automotive. I have heard back from
February 26, 2026Visibility/Wiper
Windsheild experienced a thermal crack that followed the length of the windscreen defrost vent. The crack began at each end of the vent traveled up about 2 inches and went horizontally across to the other end of the vent. Outside temps were in the single digits and it was snowing. Windscreen defrost was on max in order to provide visibility.