Kia's dedicated electric crossover on the 800V E-GMP platform, shared with the Hyundai Ioniq 5 and Genesis GV60. The Long Range RWD variant pairs a 77.4 kWh battery with a single 168 kW rear motor, delivering up to 528 km WLTP range and ultra-fast 800V DC charging. The simpler single-motor layout avoids the rear drivetrain noise reported on AWD models, though the ICCU charging controller and 12V system remain the main ownership concerns across all EV6 variants.
Excellent battery durability
Ultra-fast 800V charging capability
ICCU charging unit failures
Interior rattles and trim quality
Buy if: You want a long-range, fast-charging EV crossover with Kia's 7-year warranty and the efficiency advantage of rear-wheel drive.
Avoid if: You cannot tolerate the risk of an ICCU-related breakdown or need a car with better interior build quality.
Expected Annual Maintenance Costs
Common Problems
ICCU stops charging the 12V battery from the high-voltage battery, causing loss of drive power · more· less
The ICCU converts high-voltage DC to 12V to keep auxiliary systems running. When the internal MOSFET degrades from cumulative thermal and voltage stress, it eventually short-circuits and blows an internal fuse, stopping all 12V charging. The car then gradually loses systems and eventually shuts down. Kia issued recall SC327 covering 2022-2024 models. Consumer Reports data suggests 2-10% of E-GMP owners experienced ICCU-related issues, though Kia's official estimate is around 1%. The recall software update slows the degradation curve but does not eliminate the underlying hardware vulnerability — repeat failures have been reported. Out of warranty, ICCU replacement costs approximately €1,500-3,000 including labor. Verify recall completion with Kia using the VIN before purchase.
12V battery drains unexpectedly, leaving the car unable to 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, smart charging integrations), the interior V2L 120V outlet activating by itself, and key fob proximity have also been identified as drain sources. The 12V battery itself costs €100-200 to replace. Some owners have switched to lithium-ion 12V replacements (around €350) which are more resistant to deep discharge cycles.
Clunking and knocking from front suspension due to premature wear from battery weight · more· less
The EV6's approximately 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 (GT-Line spec) are more susceptible. The 19-inch wheels standard on most RWD models offer slightly better protection.
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 tight release 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. Dealers have noted the release mechanism is sometimes too tight from the factory. The latch mechanism replacement costs €150-300 plus labor. This is a nuisance issue rather than a safety concern but can prevent charging 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. A TSB exists for replacing the seat frame, primarily affecting early 2023 production vehicles. Dealers have replaced complete seat assemblies under warranty in confirmed cases. Outside warranty, a seat frame replacement costs €500-800. While the EV9 had a formal seat bolt recall, the EV6 has been addressed through individual warranty claims and the TSB.
Reliable EV drivetrain, but the 12V charging system needs monitoring
The EV6's rear motor and 77.4 kWh battery pack have proven durable, with class-leading battery degradation figures — a Swedish study of 1,300 used EVs found average state-of-health loss of around 10% after 145,000 km. The single-motor RWD layout avoids the rear drivetrain noise issues reported on AWD models. The main ownership risk is the ICCU, which Kia has addressed through recall SC327, though the software fix slows rather than eliminates the underlying hardware weakness. Beyond the ICCU, most issues are minor: interior rattles, infotainment software glitches, and charging port quirks. The front suspension deserves attention due to the heavy battery pack. 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. For European models, check with your national vehicle safety authority as recall campaign numbers may differ from US designations.
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.