Hyundai Sonata: Low tire pressure telltale
When the tire pressure monitoring system warning indicator is illuminated, one or more of your tires is significantly under-inflated.
If the telltale illuminates, immediately reduce your speed, avoid hard cornering and anticipate increased stopping distances. You should stop and check your tires as soon as possible. Inflate the tires to the proper pressure as indicated on the vehicle’s placard or tire inflation pressure label located on the driver’s side center pillar outer panel. If you cannot reach a service station or if the tire cannot hold the newly added air, replace the low pressure tire with the spare tire.
Then the Low Tire Pressure telltale may turn on and illuminate after restarting and about 20 minutes of continuous driving before you have the low pressure tire repaired and replaced on the vehicle.
CAUTION
In winter or cold weather, the low tire pressure telltale may be illuminated if the tire pressure was adjusted to the recommended tire inflation pressure in warm weather. It does not mean your TPMS is malfunctioning because the decreased temperature leads to a proportional lowering of tire pressure.
When you drive your vehicle from a warm area to a cold area or from a cold area to a warm area, or the outside temperature is greatly higher or lower, you should check the tire inflation pressure and adjust the tires to the recommended tire inflation pressure.
WARNING - Low pressure damage
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 can cause the tires to overheat and fail.
Tire pressure monitoring system (TPMS)
(1) Low tire pressure telltale / TPMS malfunction indicator
Each tire, including the spare (if provided), should be checked monthly when
cold and inflated to the inflation pressure recommended ...
TPMS (Tire Pressure Monitoring System) malfunction indicator
The TPMS malfunction indicator will illuminate after it blinks for approximately
one minute when there is a problem with the Tire Pressure Monitoring System. If
the system is able to correctly d ...
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