What does an electric car service include? Kia and Hyundai EV maintenance explained
Updated 13 October 2026 · CarsPlusBikes
"Electric cars need no maintenance" is one of the most common things people say about EVs, and it is only half true. An EV has no engine oil, no spark plugs, no fuel filter and no exhaust, so a large part of a normal service simply disappears. But it still has brakes, tyres, suspension, a cooling system for the battery and motor, a gearbox (the reducer) and a cabin air filter, and all of these appear on the schedule. This guide uses the Kia and Hyundai electric line-ups to show what a real EV service looks like.
How often an EV is serviced
- USA: Kia and Hyundai EVs follow one visit every 8,000 miles (13,000 km) or 12 months, whichever comes first, the same rhythm as their petrol cars.
- Canada: Kia EVs keep the 13,000 km / 12-month rhythm; Hyundai's Canadian EVs are on 12,000 km / 12 months.
For most owners that means one visit a year. The difference from a petrol car is what happens at that visit.
What is replaced, and when
| Item | Kia EV6 / EV9 / EV3 (USA) | Hyundai Ioniq 5 / 6 / 9 (USA) |
|---|---|---|
| Tire rotation | Every visit | Every visit |
| Cabin (climate control) air filter | Every 2nd visit | Every 2nd visit |
| Brake fluid | Inspect every visit, replace every 48,000 miles / 48 months | Inspect every visit, replace every 48,000 miles / 48 months |
| Coolant | First at 120,000 miles / 120 months, then every 24,000 miles / 24 months | First at 120,000 miles / 120 months, then every 24,000 miles / 24 months |
| Reducer (gearbox) fluid | Inspect every 4th visit; replace every 72,000 miles under severe use | Inspect every 4th visit; replace every 80,000 miles under severe use |
Exact items vary by model and year; check your model on the schedule pages.
The pattern is clear: an EV's scheduled replacements are a cabin filter every two years, brake fluid every four years and coolant after ten. Compare that with a petrol Kia or Hyundai of the same size, which also needs an oil and filter change at every visit, an engine air filter every two or three visits, spark plugs, drive-belt checks, fuel system checks and, on some models, transmission or transfer-case fluid.
What is inspected
The bulk of an EV service is inspection. Every year the technician checks:
- brake discs, pads and calipers, and the brake lines and hoses;
- suspension ball joints, mounting bolts, steering rack, linkage and boots;
- drive shafts and their boots (every second visit);
- the cooling system and the air-conditioning compressor and refrigerant;
- the 12-volt battery;
- on Hyundai Ioniq models, a set of high-voltage battery checks: insulation resistance, voltage deviation between cells, coolant level and pump operation, a full fault-code scan, and the underside of the battery pack and the high-voltage cables for damage.
Why brakes still matter on an EV
EVs slow down mostly with regenerative braking, so their brake pads can last a very long time. That sounds like good news, and it is, but it creates a different problem: brake discs that are rarely used can corrode, especially where roads are salted in winter. This is why the schedule keeps a brake inspection at every visit even though the pads hardly wear. In Canada, Hyundai's EV schedule alternates between inspecting and servicing the brakes (cleaning and lubricating the moving parts) every year.
Severe driving for EVs
EVs have a severe-use list too. Driving on dusty or unpaved roads, in heavy stop-and-go traffic, on steep hills, towing, or using the car commercially brings forward cabin filter changes, brake and suspension inspections, and the reducer fluid change. The reducer is the EV's single-speed gearbox; under normal use it is only inspected, under severe use it gets a fixed replacement interval.
So is an EV cheaper to maintain?
On the schedule alone, yes, by a clear margin: there is no oil change at every visit, and most of the visit is inspection. Over ten years a typical EV schedule replaces a cabin filter five times, brake fluid two or three times and coolant once. A comparable petrol SUV replaces engine oil and its filter ten or more times, plus air filters, spark plugs and other fluids.
Two costs balance this a little. EV tyres tend to wear faster because the cars are heavy and deliver strong torque, so the tyre rotation at every visit is not optional. And the high-voltage battery checks on Hyundai models take technician time, even though no parts are replaced.
See every service for your EV
Our schedule pages list every visit for each model: Kia USA (EV3, EV6, EV9, Niro EV), Hyundai USA (Ioniq 5, Ioniq 5 N, Ioniq 6, Ioniq 9, Kona Electric) and the Canadian versions for Kia and Hyundai, including the EV4. Tap any year to see the full checklist for that visit.
Indicative figures only, for planning and educational purposes. Exact cost and service requirements may vary with your car, its condition and your city; contact your local authorised service centre before a visit. CarsPlusBikes is independent and is not affiliated with or endorsed by any car manufacturer.