2022 HYUNDAI KONA ELECTRIC

Typical onset: 40,000-80,000 mi

Symptoms: Power reduction warning with turtle mode activation, Coolant level low message on cluster, Sweet smell near front of vehicle, Inverter temperature warning on highway driving

Fix: The inverter cooling circuit uses a separate electric pump and heat exchanger that shares coolant with the motor. Pump failures and hose connection leaks are typical. Most common is the inverter-to-radiator hose clamp failure. Diagnosis 0.5 hr, inverter coolant service 1.5 hr, pump replacement 2.5 hr if needed. Inverter R&R for internal leak is 4-5 hr but rare on 2022s.

Estimated cost: $400-1,200

Typical onset: 25,000-50,000 mi

Symptoms: Vehicle won't start or shift out of park despite full HV battery charge, Flickering infotainment screen on startup, Random warning lights with no codes stored, Charging port won't unlock

Fix: The 12V AGM battery is undersized for the electrical load and DC-DC converter cycling patterns. Hyundai spec is 45 Ah but real-world discharge cycles kill it early. Battery is in traditional under-hood location. Replacement is straightforward: 0.3 hr labor plus battery registration via scan tool (critical step many DIYers miss). Use OE or premium AGM only.

Estimated cost: $250-400

Typical onset: 60,000-100,000 mi

Symptoms: Whining or grinding noise that increases with speed, not throttle position, Vibration through floorboard at 40-60 mph, Noise present in neutral while coasting, Gets louder in cold weather

Fix: Front motor bearing develops wear from moisture intrusion through breather system. Not a safety issue but annoying. Motor R&R is 6-7 hr, then bearing replacement adds 3-4 hr if you can source bearings separately. Most dealers only sell complete motor assembly. Some independent EV shops will rebuild for labor savings. Drive unit fluid contamination check is diagnostic—metallic particles confirm bearing wear.

Estimated cost: $1,800-3,500

Typical onset: 50,000-90,000 mi

Symptoms: Clunking when transitioning from regen to acceleration, Slight whine at steady highway speed, Metallic smell near front wheels after hard driving, Slight hesitation on cold starts

Fix: Hyundai spec says lifetime fill but real-world shows fluid breaks down around 60k-70k, especially with frequent hard acceleration. Drive unit fluid change is 1.2 hr—requires specific SK lubricants GL-4 rated, about 1.6 quarts. Drain plug is magnetic; inspect for metal debris. If excessive metal, reduction gear may need inspection (add 3 hr). Preventive service every 60k miles avoids most issues.

Estimated cost: $180-300

Symptoms: Gear selector buttons unresponsive or delayed response, Park position won't disengage even with brake pressed, Check transmission warning with no mechanical issue, Intermittent failure to recognize gear selection

Fix: Electronic shifter module develops internal contact corrosion, not transmission mechanical. Module is on center console, 1.5 hr R&R including calibration. Hyundai had TSB for software update first—always check for updates before replacing hardware. If module replacement needed, must be dealer-programmed. DIY can replace but needs Hyundai GDS scan tool access for initialization.

Estimated cost: $400-800

Typical onset: 40,000-70,000 mi

Symptoms: Gradual loss of AC cooling performance, Musty smell from vents that doesn't clear with cleaners, Refrigerant low but no visible external leaks, Moisture spots on passenger floor

Fix: Evaporator develops pinhole leaks from internal corrosion—seems related to specific refrigerant oil batches. Diagnosis requires leak detection dye and evac/recharge cycle. Evaporator R&R is labor-intensive: full dash removal, 8-10 hr job. Includes refrigerant recovery, evaporator replacement, expansion valve, and full system recharge. Not common but expensive when it happens.

Estimated cost: $1,800-2,800