Hyundai Elantra HD: Low tire pressure telltale (if equipped)
The low tire pressure telltale comes on for 3 seconds after the ignition switch is turned to the ON position. If the warning light does not come on, or continuously remains on after coming on for about 3 seconds when you turned the ignition switch to the ON position, the Tire Pressure Monitoring System is not working properly. If this occurs, have your vehicle checked by an authorized HYUNDAI dealer as soon as possible. This warning light will also illuminate if one or more of your tires is significantly under-inflated. You should stop and check your tires as soon as possible. If the warning light illuminates while driving, reduce vehicle speed immediately and stop the vehicle. Avoid hard braking and overcorrecting at the steering wheel. Inflate the tires to the proper pressure as indicated on the vehicle’s tire information placard.
WARNING - Low tire pressure
Significantly low tire pressure makes the vehicle unstable and can contribute to loss of vehicle control and increased braking distances. Continued driving on low pressure tires will cause the tires to overheat and fail.