Low tire pressure telltale 
When the tire pressure monitoring system warning indicators are illuminated and warning message displayed on the cluster LCD display, one or more of your tires is significantly under-inflated.
If either 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. Then, reset TPMS according TPMS reset procedure.
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.
The Low Tire Pressure Telltale will remain on and the TPMS Malfunction Indicator may blink for one minute and then remain illuminated until you have the low pressure tire repaired and replaced on the vehicle.
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.
Then, reset TPMS according TPMS reset procedure.
The TPMS may not calibrate properly in below conditions.
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You do not reset TPMS properly.
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You do not use original tires.
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You drive on snowy or slippery roads.
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You rapidly accelerate, decelerate or turn the steering wheel.
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Driving too slow or too fast.
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There is heavier and uneven load on the tires.
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Spare tire or snow chains are used.
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.