Common Problems with the
2019 Hyundai Ioniq (Hybrid/PHEV)

We've identified 2 known issues that can affect the 2019 Hyundai Ioniq (Hybrid/PHEV). None are considered critical, but they're worth knowing about before you buy.

Known Issues

Serious

Moderate

Minor

The 2019 period has 1 more issue than the Hyundai Ioniq (Hybrid/PHEV) average across all year periods.

All Known Issues

12V Battery Drain & Deep Sleep Bugs

ModerateElectrics & Electronics

The auxiliary 12V battery can drain if the car is left for several days. On earlier models, this was often due to the car failing to enter a "deep sleep" mode, sometimes exacerbated by frequent Bluelink app pings or third-party tracking apps.

Most affected: Early Hybrid and PHEV models

Estimated cost: £120–£200Affects: 2016–2019Often appears around: Age-related

Typical symptoms

•Car completely unresponsive
•Remote locking fails
•Clock resets
•12V battery dies if HV battery is below 20%

What to inspect before you buy

✓Age and health of the 12V battery
✓Presence of a "Battery Reset" button (on newer models)
✓Software version of the BMC

DCT Hesitation & Shudder

ModerateGearbox & Transmission

The 6-speed DCT can feel hesitant or "shudder" when pulling away, particularly in cold weather or stop-start traffic.

Most affected: Hybrid and PHEV

Estimated cost: £300–£1,500Affects: 2016–2022Often appears around: 30,000-60,000 miles

Typical symptoms

•Delay when pressing the accelerator
•Jerky behavior at low speed
•Unpleasant vibration during take-up

What to inspect before you buy

✓Perform several low-speed starts from cold
✓Check for gearbox software updates in the service history

Buying Tips for the 2019 Hyundai Ioniq (Hybrid/PHEV)

✓Check for the "Battery Reset" button on 2019+ facelift models, which allows self-jump-starting from the hybrid battery
✓Verify all recalls (Main Power Relay and Clutch Actuator) have been completed by a dealer
✓Test the DCT for smoothness at low speeds; it should be more direct than a Prius CVT but can be jerky if cold
✓Inspect the boot for dampness, which can affect the 12V battery or hybrid modules

2016–2018 Hyundai Ioniq (Hybrid/PHEV)2020–2022 Hyundai Ioniq (Hybrid/PHEV)