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BrakesPart report

2024 Ineos Grenadier Brakes Problems

Complaints
5about this part
Share
22%of 23 total for the year
Median mileage
7,500miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 5 complaints about the brakes of the 2024 Ineos Grenadier, 22% of the 23 complaints for this model year. Where a mileage was given, the median is 7,500 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The brake warning light came on as the vehicle was failing. It did not give me any warning prior, I was leaving my driveway to go to the market when this light indicator came on and my brake I could tell was failing because I had put my foot all the way down on the floor, so I decided to not go to the store and back in and I was having trouble all the way down my driveway with the brake my boyfriend examined the vehicle and underneath the front and rear axle. …”

NHTSA complaint #11629231, filed 2024-12

“1. When the fuel tank is filled up, it triggers an Engine Warning Light which has to be manually reset for other functions (like cruise control to operate). I've been waiting 4 months for a fix. 2. After numerous attempts, the dealership is unable to have the installed recommended break Controller (Redarc) successfully send a break signal to the towing wiring harness, meaning that I cannot tow vehicles safely in line with the vehicle's advertized specifications. I have left my vehicle with Mossy Inneos Houston and said I don't want it back until it can safely tow trailers as advertized.”

NHTSA complaint #11602831, filed 2024-07

“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 complaint #11675570, filed 2025-07, 7,500 miles

“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. …”

NHTSA complaint #11724140, filed 2026-03

“In vehicles like mine, which are fitted with the auxiliary battery, the battery can burp acid through a breather tube. this tube is located in a place where the acid will be discharged onto the brake lines. At that exact spot, there is a rubber bumper secured with cloth tape on those brake lines, and when the acid soaks into the cloth tape, the tape serves to hold the acid directly against the brake lines. Even after apparently only one day, the acid destroyed the tape and the rubber, and stripped the paint coating off the brake lines. …”

NHTSA complaint #11611042, filed 2024-08

Brakes: other model years

YearComplaintsShare of year
2024522%

Other parts of the 2024 Ineos Grenadier

Electrical system
7 complaints
Other or unknown
4 complaints
Transmission and drivetrain
4 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Steering
2 complaints
Body and structure
2 complaints
Air bags
1 complaints
Fuel system
1 complaints

← All problems reported for the 2024 Ineos Grenadier

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology