2022 KIA SOUL EV

Typical onset: 40,000-80,000 mi

Symptoms: Weak or no cold air from vents despite compressor running, Musty odor in cabin when AC is on, Refrigerant low on pressure check, no external leaks visible, Condensation or frost buildup on evaporator visible through blower access

Fix: Dash removal required for evaporator replacement. 8-10 hours labor due to complete HVAC box disassembly. System evacuation, evaporator swap, reassembly, vacuum test, and recharge. Often includes replacing the expansion valve (TXV) at same time to avoid comeback.

Estimated cost: $1,800-2,800

Typical onset: 50,000-90,000 mi

Symptoms: Intermittent cooling — cold for 10 minutes then warm air, Icing on suction line at compressor, High-side pressure fluctuating erratically, Clicking or hissing from under dash when AC cycles

Fix: TXV is buried in the HVAC case like the evaporator, so same 8-10 hour dash-out job. Smart move is to replace evaporator simultaneously if age/mileage align. If caught early and evaporator is clean, TXV-only replacement runs 6-8 hours.

Estimated cost: $1,200-2,200

Symptoms: Vehicle won't enter Ready mode even with high-voltage battery charged, Dash warning lights flicker or stay dark, Clicking from contactors under hood but no power-up, Remote start / climate pre-conditioning stops working

Fix: The small 12V battery (used for computers and contactors, not propulsion) commonly fails at 3-5 years regardless of mileage due to heat exposure in engine bay. Replace with AGM battery. 0.5 hours labor. Critical: test charging system after install — faulty DC-DC converter (steps down high-voltage to charge 12V) can kill new battery in weeks.

Estimated cost: $250-450

Typical onset: 60,000-110,000 mi

Symptoms: Clunking when shifting from Drive to Reverse or vice versa, Vibration at idle that wasn't there before, Visible sag or cracking in motor/trans mount rubber, Steering wheel shudder during hard regen braking

Fix: The single-speed transmission and motor assembly use hydraulic mounts that degrade from constant torque reversals (regen braking). Replacement requires supporting the drivetrain from below, unbolting old mount, installing new. 2-3 hours labor. Inspect all three mounts (two motor, one trans) and replace as set if multiple show wear.

Estimated cost: $400-700

Typical onset: 20,000-60,000 mi

Symptoms: Rattling from center stack or upper dash on rough roads, Squeaking near defroster vents in hot weather, Buzzing that stops when pressing on dash trim, Loose-feeling trim pieces around instrument cluster

Fix: Kia used multiple plastic clips and no sound deadening in some dash joints. Fix involves removing trim panels, applying felt tape or foam pads at contact points, and reinstalling with revised clip tension. 1-2 hours labor depending on noise location. Some dealers have TSBs with foam pad kits for known rattle points.

Estimated cost: $150-350

Symptoms: High-pitched whining from under vehicle during or after DC fast charging, Whine audible for 10-20 minutes after parking on hot days, No performance loss but noise is intrusive in quiet cabin, Pump cycles audibly even when parked and locked

Fix: The liquid cooling pump for the high-voltage battery can develop bearing noise or cavitation from coolant degradation. Flush cooling system and replace pump if noise persists. 2-3 hours labor. Dealership often covers under 10-year battery warranty if documented early. Verify coolant level first — air in system causes same symptom.

Estimated cost: $600-1,200

Typical onset: 50,000-100,000 mi

Symptoms: Soft brake pedal that firms up after pumping, Visible rust perforation on steel brake lines near rear axle, Brake fluid leak at line junction or along frame rail, ABS warning light due to pressure sensor detecting leak

Fix: Mostly a salt-belt issue where road brine attacks uncoated steel lines. Complete brake line replacement (all four corners) requires 6-8 hours: fabricate or install pre-bent lines, bleed system, test. If caught early (surface rust only), coating and monitoring may suffice. Once perforated, full replacement mandatory for safety.

Estimated cost: $1,500-2,800