2024 Ineos Grenadier Recalls, Issues & Maintenance

The 2024 Ineos Grenadier carries 3 open NHTSA recalls — most recently covering wiring and critical fasteners. Owners report 6 recurring issue clusters, led by “HVAC system blowing excessively hot air.” The Grenadier pairs a BMW B58 straight-six with a schedule written for actual work: service every 12 months or 12,000 miles, and Ineos itself says to halve that under sustained off-road use, towing, or wading. That honesty is rare and worth taking seriously; water crossings age axle and transfer fluids no matter what the calendar says. Brake fluid goes every 2 years. The driveline runs published multi-year fluid cycles, with sources disagreeing on the axle interval, so confirm yours against the service booklet. A 5-year unlimited-mileage warranty backs it. BMW norms cover the engine internals; the truck bits are pure Ineos.

3 Open Recalls

Source: NHTSA

ELECTRICAL SYSTEM:WIRING

Campaign #23V828000 · Jul 12, 2023

Issue: 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.

Risk: A short circuit increases the risk of fire.

Fix: 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.

STEERING:CRITICAL FASTENERS

Campaign #23V903000 · Dec 29, 2023

Issue: 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.

Risk: 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.

Fix: 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.

STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR

Campaign #25V147000 · Jun 3, 2025

Issue: 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.

Risk: An unlatched door can open unexpectedly while the vehicle is in motion, increasing the risk of injury.

Fix: 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.

Recall data refreshed Sep 13, 2026.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2024 Ineos Grenadier.

Reported to NHTSA

HVAC system blowing excessively hot air

ELECTRICAL SYSTEM

5 NHTSA complaints · 2025-06 → 2026-05

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
Owner report, NHTSA ODI #11671395
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
Owner report, NHTSA ODI #11666766
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
Owner report, NHTSA ODI #11689392

Read all complaints on NHTSA →

Door handle button sticks and door swings open while driving

STRUCTURE

4 NHTSA complaints · 2024-06 → 2025-02

Vehicle doors are swinging open while driving with no warning. Door does not then latch close. This has happened with multiple doors at various times
Owner report, NHTSA ODI #11638036
The exterior door handle button on all 4 passenger doors becomes stuck and prevents the door latch from functioning properly when the door is closing as it fails to latch to the receiver mechanism on the door frame
Owner report, NHTSA ODI #11642775
The rear door handles of the vehicle get stuck in the open position and do not always latch. When driving the vehicle the doors then swing open. Clearly this is a tremendous safety hazard
Owner report, NHTSA ODI #11592085

Read all complaints on NHTSA →

Brake fluid loss and brake line damage

SERVICE BRAKES

3 NHTSA complaints · 2024-08 → 2025-07

The brake warning light came on as the vehicle was failing
Owner report, NHTSA ODI #11629231
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
Owner report, NHTSA ODI #11611042
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
Owner report, NHTSA ODI #11675570

Read all complaints on NHTSA →

Tow package wiring incompatible with brake controller

ELECTRICAL SYSTEM, SERVICE BRAKES

2 NHTSA complaints · 2024-07 → 2026-03

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
Owner report, NHTSA ODI #11724140
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
Owner report, NHTSA ODI #11602831

Read all complaints on NHTSA →

Loss of steering control at highway speed

STEERING

2 NHTSA complaints · 2024-01 → 2026-05

Driving at highway speeds--55-65 mph--the vehicle is all over the road. I am very concerned that there is a problem with the steering engineering making this vehicle dangerous on highways (as opposed to off-road)
Owner report, NHTSA ODI #11566813
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
Owner report, NHTSA ODI #11737172

Read all complaints on NHTSA →

Windshield cracking without impact

VISIBILITY/WIPER

2 NHTSA complaints · 2025-02 → 2026-02

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
Owner report, NHTSA ODI #11720781
On [XXX], while driving at a slow speed and not in the vicinity of other vehicles, I heard a sudden cracking noise and noticed a crack had appeared on my windshield
Owner report, NHTSA ODI #11641077

Read all complaints on NHTSA →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 13, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Essential maintenance

Critical for safety and preventing major damage

Oil Service (Annual)

Every 12,000 mi

Every 12 months or 12,000 miles with BMW-spec synthetic; every 6 months or 6,000 under heavy off-road, towing, or wading duty, per Ineos's own guidance.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Annual Service Inspection

Every 12,000 mi

Underbody, driveline seals, and breathers inspected annually, immediately after any deep-water work. This truck is designed to ford; the schedule assumes you will check what the water touched.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free with any paid service. A flashlight and 10 minutes covers the basics yourself.

Brake Fluid

Every 24,000 mi

Every 2 years regardless of mileage.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Tire Rotation

Every 6,000 mi

Rotate with each service or sooner; heavy all-terrains on solid axles reward frequent rotation.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Axle (Differential) Oil

Every 48,000 mi

Published guidance conflicts: one source says inspect at 2 years and replace at 4, another documents a first-service change then a long cycle. Confirm against your service booklet, and change early after sustained wading regardless.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.

Transmission & Transfer Case Fluid

Every 72,000 mi

The ZF 8-speed and transfer case run roughly a 6-year published cycle here, notable because the same ZF box is called a lifetime fill in BMWs. Off-road duty shortens it.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Spark Plugs

Every 60,000 mi

Not separately published by Ineos; BMW B58 practice is roughly 60,000 miles. Confirm with your service center.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 30,000 mi

Not separately published; inspected at services and replaced on condition, early in dust.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Engine Coolant

Every 100,000 mi

Not separately published; BMW long-life norms apply, checked at every service.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2024 Ineos Grenadier reflects Ineos's published service intervals. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.