IsItAGoodCar

Common Problems with the
2021–2023 Hyundai Tucson (NX4)

We've identified 3 known issues that can affect the 2021–2023 Hyundai Tucson (NX4). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

The 2021–2023 period has 1 more issue than the Hyundai Tucson (NX4) average across all year periods.

All Known Issues

ICCU (Integrated Charging Control Unit) Failure

SeriousElectrics & Electronics

Affects Hybrid (HEV) and Plug-in Hybrid (PHEV) models. The unit can fail, preventing the 12V battery from charging and potentially leaving the car stranded.

Estimated cost: £0 (Recall)Affects: 2021–2023Often appears around: Any

Typical symptoms

  • •"Check Hybrid System" warning
  • •12V battery drain
  • •Sudden loss of power

What to inspect before you buy

  • ✓Recall status for ICCU software and hardware check

GPF Clogging

ModerateExhaust & Emissions

The Gasoline Particulate Filter can clog if the car isn't driven at higher speeds periodically to allow for regeneration. A common issue for urban-only drivers.

Estimated cost: £0–£800Affects: 2021–2024Often appears around: Any

Typical symptoms

  • •"Check exhaust system" message
  • •Engine light
  • •Slightly reduced MPG

What to inspect before you buy

  • ✓Typical usage history
  • ✓Regeneration frequency

DCT Judder (HEV/1.6T)

ModerateGearbox & Transmission

The dual-clutch transmission can be jerky or exhibit a shudder during low-speed manoeuvres, similar to previous generations.

Estimated cost: £0–£1,500Affects: 2021–2023Often appears around: 15,000+ miles

Typical symptoms

  • •Judder when pulling away
  • •Hesitant gear shifts

What to inspect before you buy

  • ✓Smoothness of take-off from cold

Buying Tips for the 2021 Hyundai Tucson (NX4)

  • ✓On HEV and PHEV models, verify the ICCU service campaign/recall has been completed.
  • ✓Check for GPF (Gasoline Particulate Filter) warnings, especially on cars used for short city school runs.
  • ✓Test the 10.25-inch infotainment screen for responsiveness and software stability.
  • ✓Listen for any "clicks" or "notchy" feelings in the steering at low speed.
2024 Hyundai Tucson (NX4)

Browse 2021–2023 Hyundai Tucson (NX4) in our Directory

View MOT history, registration data, and reliability scores for 2021–2023 Hyundai Tucson (NX4) vehicles.

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Other Hyundai Tucson (NX4) Year Periods

2021–20232024

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