BatteryHigh
Traction battery health variation, particularly on ex-private-hire cars
- Typically appears
- Any
- What to inspect
- Run a state-of-health check and review charging history
2021 Hyundai Ioniq problems
A 2021 Hyundai Ioniq is now 5 years old, so an average example has covered around 67,500 miles. A late-run car · the most reliable part of the generation, but higher-mileage wear items are usually the deciding factor. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2021 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
Quick answer
The 2021 Hyundai Ioniq is 5 years old, so an average example has covered roughly 67,500 miles. At that mileage most documented faults are still ahead of it, so servicing evidence matters more than wear. A further 1 typically appear later in the car's life.
Faults that appear at any mileage
Age, electronics and build-related issues that are not mileage-driven.
BrakesMedium
Rear disc corrosion from regenerative braking
- Typically appears
- Age-related
- What to inspect
- Inspect the rear discs carefully
ElectricalMedium
12V battery faults causing multiple warning lights
- Typically appears
- Age-related
- What to inspect
- Test the 12V battery before diagnosing anything else
Faults still ahead of this car
Typically appear later than this year's average mileage · worth budgeting for rather than inspecting.
TransmissionMedium
Dual-clutch hesitation and judder on hybrid models
- Typically appears
- 70,000+ miles
- What to inspect
- Drive in slow traffic from cold
Inspecting a 2021 Hyundai Ioniq?
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carHyundai Ioniq · frequently asked questions
Are ex-taxi Ioniqs a problem?
Not mechanically, but the interior needs work and the battery needs a documented health check.
Which version is easiest to sell?
The self-charging hybrid. It suits buyers who cannot charge at home.
Does the warranty transfer?
Hyundai's warranty transfers with the car when servicing is up to date, which is a strong selling point.