Is the power steering whine on my INEOS Grenadier normal?

Short answer: A low-speed whine when you turn the wheel is common on the Grenadier. It comes from the electric-hydraulic power steering pump, and owners say some are much louder than others. If yours is very loud, record it and have the dealer compare it with another truck. Some owners got the pump replaced. If the whine follows road speed instead of steering, have the front differential checked.

Symptom: A whine or hum when you turn the steering wheel, loudest at parking speeds or while stopped. It goes quiet when you let go of the wheel.

What to check first

1. Notice whether the noise follows steering input or road speed.
2. Check the power steering fluid level and look for leaks under the front.
3. Record a video with sound so the dealer can hear the worst case.
4. Ask the dealer to compare yours with another Grenadier on the lot.
5. Ask whether your build has had the steering ball joint nut recall (23V903000) done.
6. Run your VIN at nhtsa.gov/recalls.

Likely causes

1. Noisy electric-hydraulic steering pump. The Grenadier uses an electric motor to drive a hydraulic power steering pump, instead of a belt from the engine. Owners say it whines whenever it's working hard, mostly at low speed or parked with your hands turning the wheel.
2. A louder-than-normal pump. Owners agree some pumps are much louder than others. Several said their dealer replaced a very loud unit, though one owner said warranty no longer covers steering pumps for noise alone.
3. Low or contaminated fluid, or a leak. A pump that's low on fluid or sucking air whines more. One owner suggested checking for leaks or a bad O-ring before blaming the pump.
4. Something else whining. One owner whose Grenadier whined while driving was told by the dealer it was the front differential, not the steering. A whine that changes with road speed rather than steering points away from the pump.

What it usually costs

If the dealer agrees it's abnormal, owners got the pump replaced under warranty. One owner said an aftermarket Owl Vans pump costs about $2,150 for the part. A front differential repair was a warranty job in the owner reports.

Is it safe to keep driving?

A normal steering whine is safe to drive with. Get it checked soon if the steering feels heavy or notchy, the whine changes suddenly, or you see a fluid leak.

DIY or shop?

Checking fluid is DIY. Pump replacement and differential diagnosis are shop jobs.

Recalls, bulletins and complaints in plain words

• Recalls: NHTSA lists 3 recalls for the 2024 Grenadier. One, 23V903000, is steering-related: non-locking nuts may have been put on the steering rod ball joint, and dealers install locking nuts for free. It isn't about pump noise. Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 5 keyword-matched complaints for INEOS Grenadier 2024–2026 (of 28 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-02; keywords: steering, whine, noise, pump) (NHTSA returned no data for 2 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In Power steering whine? on Reddit r/ineosgrenadier, a new owner with under 100 km heard a whine from the power steering, and the dealer said it was normal. Owners split between 'normal for a Grenadier' and 'annoying.' A former dealer employee said the electric power steering motor makes the noise and you might get a warranty claim if you push. Others said the earlier 2025 builds were louder than late ones, and one owner mentioned an aftermarket pump from Owl Vans at about $2,150 for the part.
• In Should I bring it in? Power steering whine. on Reddit r/ineosgrenadier, an owner with 2,000 km felt their whine was louder than normal. One owner said their dealer replaced a very loud unit right off the lot, another said theirs was overly loud and the volume varies from truck to truck, and one said the dealer's noise test after the car sat didn't catch how loud it was. Another suggested checking the fluid and O-rings for leaks.
• In Diff problem on Reddit r/ineosgrenadier, an owner's high-pitched whine while driving turned out to be the front differential, according to the dealer. Another owner said it took 18 months of pushing to get the same fix under warranty on an early build. The first owner got the truck back after about two months with a rental part of that time.

Quick tip

Some whine is part of the truck. A whine that makes you turn the radio up is worth a documented dealer visit while you're under warranty.

Vehicle focus: INEOS Grenadier Station Wagon and Quartermaster, 2024-2026.

Safety / mechanic note

Heavy steering or a fluid leak can make the truck hard to control. Verify with a mechanic.