Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 22 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports2 injury reports
What owners actually said
22 reports
Mileage unknown · May 11, 2026
Steering
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 …
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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 complete loss of steering control if not caught in time. This appears to be a known issue within the Ineos Grenadier community involving steering and tie rod hardware concerns. The failure presents a significant safety risk to vehicle occupants and others on the road, especially during off road or remote travel where recovery and emergency services may not be readily available.
NHTSA ODI #11737172
Mileage unknown · May 11, 2026
Unknown 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 syst…
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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.
NHTSA ODI #11737060
Mileage unknown · Mar 13, 2026
Electrical 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 wiri…
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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 the relevant team and our team are aware of the issue. Unfortunately there was no ETA given for this but there are plans to look into this issue further. Please don't hesitate to contact us for any further assistance. Best regards, INEOS Automotive Customer Care Team This is not an acceptable response for addressing a manufacturing defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11724140
Mileage unknown · Feb 26, 2026
Visibility/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 provi…
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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.
NHTSA ODI #11720781
Mileage unknown · Feb 18, 2026
Air Bags
While traveling on a rough road I experienced a side curtain airbag deployment on our Ineos Grenadier. There was no impact or roll over. There was only one person in the vehicle, the driver, yet both the drivers side and passenger side airbags deployed along with the drivers seatbelt locking mechanism. The airbags never defla…
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While traveling on a rough road I experienced a side curtain airbag deployment on our Ineos Grenadier. There was no impact or roll over. There was only one person in the vehicle, the driver, yet both the drivers side and passenger side airbags deployed along with the drivers seatbelt locking mechanism. The airbags never deflated, leaving the driver trapped in the vehicle. To exit the vehicle a knife had to be used to deflate the drivers side airbag. Over one hour later the passenger side airbag had never deflated and also required a knife to puncture it. If there was an actual roll over and water was involved, I fear that the occupants of the vehicle could not get out. Something is faulty with this system.
NHTSA ODI #11718785
11,000 miles · Sep 24, 2025
Electrical SystemVisibilityInjury
The contact owns a 2024 Ineos Grenadier. The contact stated that while driving at an undisclosed speed, the A/C was activated; however, there was extremely hot air blowing out of the vents. No warning lights were illuminated. The contact stated that the vents were extremely hot and that the air temperature from the rear vents wa…
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The contact owns a 2024 Ineos Grenadier. The contact stated that while driving at an undisclosed speed, the A/C was activated; however, there was extremely hot air blowing out of the vents. No warning lights were illuminated. The contact stated that the vents were extremely hot and that the air temperature from the rear vents was recorded at 175 degrees. In addition, the air temperature from the front vents was recorded at 132 degrees. The contact burned his right hand while recording the temperature from the vents. The vehicle was taken to the dealer, where it was diagnosed with an A/C system failure. The contact was informed that the A/C system needed to be replaced. The vehicle was being repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 11,000.
NHTSA ODI #11689392
7,500 miles · Jul 23, 2025
Power TrainService Brakes, Hydraulic
The contact owns a 2024 Ineos Grenadier. The contact stated that while taking his children to daycare and driving 35 MPH, several unknown warning lights illuminated. The contact stated that the vehicle was hesitating while driving. The contact pulled into the parking lot. The contact stated that there was an abnormal chattering …
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The contact owns a 2024 Ineos Grenadier. The contact stated that while taking his children to daycare and driving 35 MPH, several unknown warning lights illuminated. The contact stated that the vehicle was hesitating while driving. The contact pulled into the parking lot. The contact stated that there was an abnormal chattering sound coming from the tires. The contact stated that the disc brakes had seized. The vehicle was towed to the local dealer, but was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 7,500.
NHTSA ODI #11675570
Mileage unknown · Jul 6, 2025
Electrical System
There appears to be some electrical malfunction that causes the air conditioning to produce exceptionally hot air. It can only end when the air conditioning system is turned all the way off. This is a known problem in the owners groups that many people are experiencing. One of my friends just measured the temperature at 192° blo…
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There appears to be some electrical malfunction that causes the air conditioning to produce exceptionally hot air. It can only end when the air conditioning system is turned all the way off. This is a known problem in the owners groups that many people are experiencing. One of my friends just measured the temperature at 192° blowing out during air conditioning setting. I am having something similar And this must be fixed as it is dangerous
NHTSA ODI #11671395
Mileage unknown · Jun 23, 2025
Electrical System
AC Electrical System - Vehicle will only blow full Hot air, regardless of the temperature control setting. This has happened many times since ownership (Dec 2023) with many visits to dealership without resolution.
NHTSA ODI #11668541
Mileage unknown · Jun 23, 2025
Power Train
The rear differential cover is made from lightweight stamped metal. It hangs lower than the differential housing itself and includes a lip that can easily catch on obstacles. This design makes it particularly vulnerable to damage when driving on rough terrain, such as Class 4 state roads. A compromised differential cover may lea…
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The rear differential cover is made from lightweight stamped metal. It hangs lower than the differential housing itself and includes a lip that can easily catch on obstacles. This design makes it particularly vulnerable to damage when driving on rough terrain, such as Class 4 state roads. A compromised differential cover may lead to fluid leaks, which can ultimately result in catastrophic failure of the rear axle assembly.
Ineos Automotive Americas, LLC (Ineos) is recalling certain 2024 Grenadier vehicles. The door button mechanism may have been assembled without a sufficient application of grease, preventing the door from fully latching.
Consequence & remedy
Consequence: An unlatched door can open unexpectedly while the vehicle is in motion, increasing the risk of injury.
Remedy: Ineos will replace the door button assemblies, free of charge. Owner notification letters were mailed on September 12, 2025. Owners may contact Ineos customer service at 1-833-494-4748.
Ineos Automotive Americas, LLC (Ineos) is recalling certain 2023-2024 Grenadier vehicles. Non-locking nuts may have been mistakenly installed on the steering rod ball joint.
Consequence & remedy
Consequence: Loose or missing nuts can result in the steering rod ball joint disconnecting from the steering knuckle, causing a loss of steering and increasing the risk of a crash.
Remedy: Dealers will install locking steering rod ball joint nuts, free of charge. Owner notification letters were mailed June 25, 2024. Owners may contact Ineos customer service at 1-919-296-3626.
Ineos Automotive Americas, LLC (Ineos) is recalling certain 2024 Grenadier vehicles equipped with the auxiliary switch package relay. The relay control wire may have been trapped under the relay power cable connection fastener during assembly, which can potentially damage the relay control wire insulation and result in a short.
Consequence & remedy
Consequence: A short circuit increases the risk of fire.
Remedy: Dealers will inspect and secure the wiring, and repair or replace any damaged wiring as necessary, free of charge. Owner notification letters were mailed June 25, 2024. Owners may contact Ineos customer service at 1-919-296-3626.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2024 Ineos Grenadier Problems, Complaints & Recalls | Skip That Year