Service Tire Pressure Monitor System.

The tire pressure monitor system in todays cars use a radio frequency (RF)
transmitter (
Tire Pressure Sensor ) in each wheel valve stem to relay
pressure information to the module. The
Service Tire Pressure Monitor
System
light / warning means there is a problem in the system, not a low
tire.
The
Low tire pressure warning would come on for a low tire.

The system would need to be scanned for codes if the
service monitor system warning comes on.

After a
tire rotation, the tire positions need to be relearned in order for the
system to tell you which tire is low. A special procedure and tool is need to
do this.
WARNING LIGHTS
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Tire Pressure Warning Light

12-1-11
my Saturn Vue is out of
alignment, would that cause my low tire sensor to be on
and would it cause my traction control light to stay on?
Comments
No. You either have a tire low air pressure, or a
faulty sensor. Have the ABS computer scanned
for codes for warning light.