2019 Hyundai Kona Problems: 10 Known Issues

On the 2019-2020 Hyundai Kona, nHTSA recall 21V-127 covers 4,694 model-year 2019-2020 Kona Electric vehicles that did not receive a battery replacement under Hyundai recall 196. A folded anode tab in an LG Energy Solutions battery cell can allow lithium plating to contact the cathode, causing an internal electrical short. The short can increase fire risk while the vehicle is parked, charging or being driven.

On the 2019-2023 Hyundai Kona, kona Electric owners across model years report the small 12V auxiliary battery repeatedly draining, sometimes within weeks, leaving the car completely dead and unable to wake the high-voltage system. Because the 12V system must energize before the main pack activates, a flat 12V battery disables door locks, the dash, and the ability to start or charge. Deep discharges (often after dealer software reflashes done without a charger attached) can permanently damage the battery.

On the 2019-2023 Hyundai Kona, kona Electric owners report DC fast charging underperforming its rating and 'Check Electric Vehicle System' / BMS faults that cut charge limits or stop a session. The battery's thermal management throttles or halts charging during repeated or hot-weather fast-charge sessions, and some faults trace to the charge control module (e.g. 'Quick Charging Fault by CCM') or software.

On the 2018-2025 Hyundai Kona, kona and Kona N/Electric owners report the touchscreen going black or frozen, and Apple CarPlay/Android Auto disconnecting at random with a 'phone not responding, reconnect on the road' prompt. The faults trace to infotainment firmware/connectivity bugs rather than a single hardware part.

On the 2019-2021 Hyundai Kona, nHTSA recall 21V-301 covers 95,223 model-year 2019-2021 Kona vehicles equipped with 2.0-liter Nu MPI engines. Inconsistent nitride heat treatment can make a piston oil ring excessively hard, allowing its outer edge to chip and scuff the cylinder bore. Resulting oil consumption and engine damage can cause knocking, reduced power or hesitation, warning lights and, with continued operation, a seized connecting-rod bearing, engine stall or an oil-fed fire.

On the 2018-2023 Hyundai Kona 1.6T GDI, the 1.6T GDI engine in the Kona can experience fuel dilution of the engine oil, particularly in vehicles used primarily for short trips in cold weather. Unburned fuel washes past the piston rings and mixes with the engine oil, raising the oil level above the full mark and thinning the oil's viscosity. This reduces lubrication effectiveness and can accelerate engine wear. The issue is more prevalent in cold climates where the engine rarely reaches full operating temperature.

On the 2018-2023 Hyundai Kona 1.6L Turbo, kona models with the 1.6L turbo and 7-speed DCT experience shuddering during low-speed driving, delayed engagement from a stop, and lurching during parking maneuvers. The dry dual-clutch design struggles with heat and wear. Hyundai TSB 22-AT-007H (May 2022) covers low-speed DCT judder on 2018-2021 Kona 1.6T with a TCU software update and, if needed, double-clutch replacement.

On the 2018-2023 Hyundai Kona, kona models equipped with the power sunroof experience water leaks, typically at the front corners. The drain tubes become clogged or disconnected, allowing water to pool in the headliner, drip onto occupants, and potentially damage electrical components. This is especially common after 2-3 years of ownership.

On the 2018-2023 Hyundai Kona, the A/C compressor on the Kona 1.6T and 2.0L can develop a rattling or clicking noise, followed by reduced cooling performance and eventual failure. The compressor clutch bearing is often the first component to fail, producing a squealing noise when the A/C is engaged. Complete compressor failure results in no cooling and can send metal debris through the A/C system, contaminating the condenser and expansion valve.

On the 2018-2023 Hyundai Kona, multiple Kona owners report premature paint peeling and clear coat failure, particularly on horizontal panels (hood, roof) and in lighter colors. The clear coat delaminates from the base coat, creating an unsightly appearance that worsens quickly once started. The issue appears to be related to paint application thickness and cure quality at the factory. Affected vehicles may show peeling as early as 2-3 years after purchase.