Hyundai Tucson (NX4) Common Problems & Reliability
The latest Tucson is a bold, high-tech SUV that has been a huge sales success in the UK. Early technical patterns suggest focusing on the ICCU and GPF, along with DCT smoothness.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Hyundai Tucson (NX4) Faults & Repair Costs
ICCU (Integrated Charging Control Unit) Failure
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.
"Check Hybrid System" warning, 12V battery drain, Sudden loss of power
- Recall status for ICCU software and hardware check
GPF Clogging
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.
"Check exhaust system" message, Engine light, Slightly reduced MPG
- Typical usage history
- Regeneration frequency
DCT Judder (HEV/1.6T)
The dual-clutch transmission can be jerky or exhibit a shudder during low-speed manoeuvres, similar to previous generations.
Judder when pulling away, Hesitant gear shifts
- Smoothness of take-off from cold
Buying a used Hyundai Tucson (NX4)? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.