Which Tank 300 have you got?
The hybrid came first in December 2022, a 2.0-litre turbo petrol with a nine-speed automatic. A plain 2.0-litre turbo petrol with an eight-speed ZF automatic followed in May 2023, and a 2.4-litre turbo-diesel in February 2025. GWM's service sheet also lists a Hi4T plug-in hybrid.
The differences show up at service time. The diesel has a timing belt, the hybrids have a high-voltage battery, and each has its own list of fluids. Say which one you've got when you tell us the job.
Common GWM Tank 300 problems
The December 2025 hybrid recall. On 2025 HEV cars, a shielding ring in the high-voltage wiring harness may not be properly grounded. That can upset communication between the engine and gearbox computers, with warning lights, reduced torque and reduced hybrid cooling. If warning lights come on or the car loses power, ease off and pull over somewhere safe.
The July 2024 jack recall. CarExpert reported 975 2023 hybrids recalled because the jack's adjusting rod may not work, so the jack may not lift the car to change a wheel. GWM said there was no safety hazard. It's still worth having done before a trip off the bitumen.
Screens and software. CarsGuide says many owners report multimedia and electronic glitches that are likely software. Tell the dealer every time, so there's a paper trail if it needs a warranty claim.
Excessive power usage message. CarsGuide says this can appear when battery voltage drops below 12.5 V. Likely causes are the key fob sitting close to the car, or a dashcam or other accessory wired badly. Unplug anything you've added, then have the battery and charging system tested.
The indicator stalk. Owners find it confusing to cancel. GWM told CarsGuide it isn't a safety issue that needs a recall, so it's something to get used to.
GWM Tank 300 service schedule
GWM's sheet puts every version on the same points: 12 months or 10,000 km for the first service, then 24 months or 25,000 km, then 36 months or 40,000 km, carrying on in 12-month and 15,000 km steps. Whichever comes first counts.
Diesel. The timing belt (the toothed belt that keeps the engine's valves in step) is due first at 70,000 km, then every 75,000 km. That's a much shorter life than some owners expect, so don't let it slide. Transfer case and diff oils are first due at 40,000 km or 36 months.
Petrol. Spark plugs are due at the 36-month service. Transfer case oil is replaced every 45,000 km.
Hybrid. The list adds checks on the high-voltage battery's condition and connectors, which are for a mechanic trained on those systems.
Off road or towing. GWM says some items may need shorter intervals in severe duty. Ask what that means for how you use yours. Older reminders can also be out of date: GWM moved the 2025 diesel's first service from 5,000 km to 10,000 km and said it'd issue updated booklets.
Your Tank 300 warranty
carsales lists seven years and unlimited kilometres for the 2023 Tank 300. If a qualified independent mechanic services yours to GWM's schedule and specifications, that does not by itself void the new car warranty. Ask for an invoice naming the oils and parts, and save it with the book.
Software faults and recalls still go to a GWM dealer. A good independent mechanic will say so.
Tell us which Tank 300 it is and what it needs. A local mechanic who specialises in your car.
What we'd do with a Tank 300
Find your engine in the table of the book, and mark the next service and, on a diesel, the 70,000 km timing belt. Run the VIN through vehiclerecalls.gov.au, and keep a note of every glitch with its date while the warranty's running. Then ask any mechanic how many of these they've had in. It's a young model here, and a straight answer tells you plenty.