Kia's first dedicated electric crossover on the E-GMP platform, sharing its architecture with the Hyundai Ioniq 5 and Genesis GV60. Praised for its 800V charging capability, strong range, and sporty driving character, the EV6 AWD combines dual motors with a 77.4 kWh battery for strong performance and usable range. Build quality and the ICCU charging controller have been the main ownership concerns.
Excellent battery durability
Ultra-fast 800V charging capability
ICCU charging unit failures
Interior rattles and trim quality
Buy if: You want a fast-charging, long-range EV crossover with Kia's 7-year warranty and can verify all recalls are completed.
Avoid if: You need a car that will never leave you stranded or you cannot tolerate occasional software glitches and interior rattles.
Expected Annual Maintenance Costs
Common Problems
ICCU stops charging the 12V battery from the HV battery, causing loss of drive power · more· less
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.
12V battery drains unexpectedly, leaving the car unable to start or enter ready mode · more· less
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.
Clunking and knocking from front suspension due to accelerated wear from battery weight · more· less
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.
Ticking, grinding, or whirring noise from the rear motor/gearbox area · more· less
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.
Touchscreen freezes, goes black, or takes several minutes to boot on startup · more· less
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.
Charging port door fails to open, close, or release the cable properly · more· less
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.
Driver seat shifts side-to-side during acceleration, braking, or cornering · more· less
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.
Reliable EV drivetrain, but the 12V charging system needs monitoring
The EV6's dual motors and 77.4 kWh battery pack have proven durable, with class-leading battery degradation figures. The main ownership risk is the ICCU, which Kia has addressed through a recall covering 2022-2024 models. Beyond the ICCU, most issues are minor: interior rattles, infotainment software glitches, and charging port quirks. The suspension deserves attention due to the heavy battery pack accelerating wear on front components. Verify all recalls are completed and check 12V battery health before purchase.
Recalls and Technical Service Bulletins
ICCU failure causing 12V battery discharge and loss of drive power (2022-2024 models, recall SC327)
Critical - verify completed
Shifter Control Unit software error allowing parking mechanism disengagement (2022 models)
Verify completed
Rear drive shaft improperly heat-treated, may break under load (2023 models, January-April 2023 production)
Verify completed
Contact Kia with the VIN to verify all recalls have been completed. The ICCU recall (SC327) is the most critical and affects virtually all 2022-2024 EV6 models. Even if the recall letter says inspection only, ensure the ICCU software update was applied. For European models, check with your national vehicle safety authority as recall campaign numbers may differ.
Warranty Status
Factory warranty (7 years / 150,000 km)
Check remaining coverage based on first registration date
High-voltage battery warranty
7 years / 150,000 km (minimum 65% capacity)
ICCU recall coverage
No time or mileage limit (recall applies indefinitely)
Rust perforation warranty
12 years
Kia's 7-year / 150,000 km warranty is among the best in the industry and transfers to subsequent owners. Ensure the car has been serviced within Kia's specified intervals using genuine parts, as this is required to maintain warranty coverage. The ICCU recall repair is covered regardless of warranty status.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.