Which H6 have you got?
The H6 launched here on 9 April 2021 with a 2.0-litre turbo petrol. A hybrid joined in April 2022, and the sloping-roof H6 GT in July 2022. The facelift of 1 July 2025 added a plug-in hybrid, GWM's first here, and an all-wheel-drive hybrid followed that September.
The schedule differs between these, so give the mechanic the year, the badge and whether it's front-wheel or all-wheel drive.
Haval H6 service schedule: what the sheet shows
We could read GWM's own Australian sheet for the H6 GT, so these points come from there. If yours is a standard H6, the book that came with the car has the final word.
The GT's points are 12 months or 10,000 km, 24 months or 25,000 km, 36 months or 40,000 km, 48 months or 55,000 km and 60 months or 70,000 km, whichever comes first.
What comes up on a petrol H6 GT
- Engine oil, drain plug washer and oil filter at every service.
- Spark plugs at the 36-month service.
- Automatic transmission oil and engine coolant every 48 months or 55,000 km.
- Transfer case and rear diff oil at 36 months on the all-wheel-drive car.
- The generator and water pump belt every 100,000 km.
- On the GT PHEV, spark plugs first at 40,000 km or 36 months, and transmission oil first at 55,000 km or 48 months.
Common Haval H6 problems
These are owner questions from CarsGuide. They show what to check, and they don't say how common a fault is.
Flat 12-volt battery. A 2023 Lux Hybrid went flat after six weeks parked. CarsGuide suggested starting the car every three to four weeks. A hybrid's small battery runs out just like any other car's, and that battery's warranty is 12 months or 20,000 km.
Excess battery drain warning. On a 2024 H6 this meant the 12-volt battery, with a failing battery, a charging fault or a badly fitted dash cam as likely causes.
Oil use. One 2023 owner used 600 ml every 5,000 km, which CarsGuide called normal for modern low-tension piston rings. Check the level regularly.
A stripped sump plug. A 2022 owner's oil change left the sump plug threads damaged from overtightening. A workshop can usually repair them.
Limp mode and a flashing engine light. On a 2023 H6 GT Ultra, Haval reportedly agreed to replace the engine under warranty. A flashing light is urgent: ease off and pull over somewhere safe if the car runs rough. See limp mode.
Beeping and a burning smell. On a 2022 Ultra, CarsGuide warned this may be an electrical short. Stop somewhere safe, switch off and call the dealer.
Warranty on an H6
carsales lists seven years and unlimited kilometres on the 2022 H6, and CarsGuide says commercial use is limited to 150,000 km. The hybrid battery has its own cover of eight years or 150,000 km.
A qualified independent mechanic can service yours to GWM's schedule and specifications, and that does not by itself void the new car warranty. Hold on to invoices that list the oils and parts.
Tell us which H6 it is and what it needs. A local mechanic who specialises in your car.
Where we'd start with an H6
Read the schedule in your own book before you take anyone's word for the interval, because the first service and the steps after it are easy to mix up. If the car sits for weeks, start it every three to four weeks. For warning lights on a car under warranty, go to a GWM dealer first and get the fault recorded. For routine servicing, ask a local mechanic for an estimate that names each item the book lists.