Kia EV6 Long Range AWD

The ICCU converts high-voltage DC to 12V to keep auxiliary systems running. When it fails, the 12V battery drains gradually while driving, eventually disabling the car. Kia issued a recall (SC327) covering 2022-2024 models, with dealers replacing the ICCU and updating software free of charge. However, some owners report repeat failures even after the recall fix. Consumer Reports data suggests 2-10% of E-GMP owners experienced ICCU-related issues. Out of warranty, the ICCU part costs approximately €1,500, with total replacement running €2,500-3,000 including labor. Verify recall completion with Kia using the VIN before purchase.

Many EV6 owners report finding the car completely dead due to a drained 12V battery. The root cause is often the ICCU (see above), but the 12V system also has design quirks: the Aux Battery Saver+ feature stops recharging after 10 consecutive automatic top-ups, assuming the battery is faulty. Third-party apps (Kia Connect, home automation integrations) and the 120V rear outlet coming on by itself can also drain the 12V battery. The 12V battery itself costs €100-200 to replace. Some owners have switched to lithium-ion 12V replacements (Ohmmu) for approximately €350, which are more resistant to deep discharge cycles.

The EV6's 477 kg battery pack places significant loads on the suspension, causing premature wear on wishbones, bushings, and ball joints. Owners report clunking noises over speed bumps and in turns, typically appearing between 30,000-60,000 km. Kia has identified distorted front wishbones as a recurring fault, with some cars receiving warranty replacements. A pair of front wishbones including bushings costs €400-600 at an independent shop, or €800-1,200 at a Kia dealer. Cars driven on poor road surfaces or with 20-inch wheels are more susceptible.

Some EV6 AWD owners report loud ticking or grinding noises from the rear, increasing with speed and especially noticeable during regenerative braking. The root cause can be the gear drive unit assembly, motor bearings, or insufficient grease on the shaft connecting the motor and reduction gear. Kia Corporate has acknowledged potential issues in both the gearbox bracket and gearbox internals. If the motor assembly requires replacement, expect a 4-6 week wait for parts and costs of €3,000-3,500 for a rear traction motor assembly. However, this issue is rare, affecting a small percentage of AWD models primarily within the first 20,000 km.

The 12.3-inch infotainment screen can freeze, display a black screen, or take 3-5 minutes to boot. In most cases, the screen eventually resets itself or can be manually reset using the pinhole button under the left climate knob. Software updates have improved stability, but the issue persists for some owners. A complete infotainment head unit replacement costs approximately €600-800 if the hardware fails. Most occurrences are software-related and resolved through OTA updates or dealer software flashing at no cost.

The electrically operated charging port door can malfunction due to latch misalignment, a broken catch mechanism, or the system incorrectly detecting ongoing charging. Symptoms include the door not opening when pressed, refusing to close after unplugging, or not releasing the charging cable. The latch mechanism replacement costs €150-300 plus labor. Using the manual emergency release lever in the boot can sometimes damage the latch if forced. This is a nuisance issue rather than a safety concern but can leave you unable to charge until repaired.

Some owners notice the driver seat rocks or shifts laterally, particularly during aggressive maneuvers. The root cause is typically a cracked seat assembly frame, which can also affect the electric seat adjustment motors. Dealers have replaced complete seat assemblies under warranty in confirmed cases. Outside warranty, a seat frame replacement costs €500-800. This primarily affects early 2022 production vehicles. While a recall was issued for the EV9 regarding missing seat bolts, the EV6 has not had a formal seat recall, though the issue has been acknowledged by Kia through individual warranty claims.