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The 2018 Hyundai Tucson features wheel sensors that keep track of tire pressure. To reset the TPMS warning light, first make sure the vehicle is parked on a flat surface and check that the tires are inflated to around 35 PSI using a gauge. With the doors locked and windows up, turn the ignition key to the "on" position without starting the car. Press the TPMS reset button below the steering wheel until it blinks three times. Next, turn off the ignition and take out the key. Start the engine and let it run for 20 minutes so the system can update the tire pressure readings. Alternatively, you can drive at 50 mph for 10 minutes or disconnect and reconnect the battery cables as other reset options.
To recalibrate the tire pressure monitoring system (TPMS) on the 2018 Hyundai Tucson, start by ensuring the tire pressure is accurate and then turn on the car. Next, press the reset button located on the right side of the steering wheel and wait for ten minutes. In some instances, you may have to press and hold the button until the light flashes. If the sensor is malfunctioning, it could be due to incorrect tire pressure, resulting in poor car performance.