2018 Kia Soul Problems: 1 Issues Every Owner Should Know
2018 model year · 134+ owner reports · Updated April 2026
According to Au7o's analysis of 134+ owner reports, the 2018 Kia Soul has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Electric Motor Bearing Noise (Soul EV) with 134 owner reports. Across all issues, repair costs range from $400 to $4,000. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2015-2020 Kia Soul Electric, the Soul EV (2015-2020) can develop a whining or grinding noise from the electric drive motor due to bearing wear. The front motor bearing deteriorates prematurely, particularly in cold climates. The noise is most noticeable at low speeds when other road noise is minimal. Kia has replaced drive motors under warranty for some owners.
Common Symptoms
- Whining noise from front of vehicle at low speeds
- Grinding sound during acceleration
- Noise increases with speed but masked by road noise above 30 mph
- Vibration felt through floor
How to Fix
Have dealer inspect electric drive motor bearings. If worn, the drive motor assembly is replaced under powertrain warranty. Aftermarket repair involves pressing new bearings into the motor housing ($400-800 at an EV specialist). OEM motor replacement is $2,000-4,000 if out of warranty.
What Owners Are Using
Parts and tips from 134+ owners who fixed this issue
- TipHave the dealer document the noise on the work order even if not yet severe enough for replacement. This creates a warranty claim trail if it worsens
- UpgradeMobil 1 75W-90 synthetic gear oil for differential and transfer case (Mobil 1 Synthetic Gear Oil 75W-90)
- UpgradeFel-Pro gasket kit for drivetrain service (Fel-Pro Gasket Kit)