Tire Pressure Monitoring System (TPMS)

(1) Low Tire Pressure Warning Light / TPMS Malfunction Indicator
WARNING
Excessive or insufficient pressure can shorten tire life, adversely affect vehicle handling, and cause sudden tire failure, which may result in loss of vehicle control and a crash.
Check each tire, including the spare (if provided), monthly when cold and inflate to the tire pressure recommended by the vehicle manufacturer on the vehicle placard or tire placard. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire placard, you should determine the proper tire pressure for those tires.)
As an additional safety measure, your vehicle is equipped with a Tire Pressure Monitoring System (TPMS) that illuminates the low tire pressure warning light when one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure warning light illuminates, you should stop as soon as possible and check your tires and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life and may affect the vehicle's handling and braking ability.
Note that the TPMS does not replace proper tire maintenance. The driver is responsible for maintaining correct tire pressure, even if pressure has not dropped to the level that illuminates the TPMS low tire pressure warning light.
Your vehicle is also equipped with a TPMS malfunction indicator to indicate when the system is not functioning properly. The TPMS malfunction indicator is combined with the Low Tire Pressure telltale. When the system detects a malfunction, the indicator will flash for approximately one minute and then remain illuminated. This sequence will continue during subsequent vehicle start-ups until the malfunction is corrected. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction indicator after replacing one or more tires or wheels on your vehicle to ensure that the replacement tires and wheels allow the TPMS to continue to function properly.
✽ NOTICE
If the TPMS low tire pressure warning light does not illuminate for three seconds when the ignition switch is in the ON position or when the engine is started, or if it remains illuminated after approximately three seconds, take the vehicle to the nearest authorized HYUNDAI dealer and have the system inspected.
Test yourself
A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.