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Old 04-28-2006, 09:54 AM
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I would have the tech read the service manual:

"The Tire Pressure Monitor (TPM) system notifies the driver when a significant loss of tire pressure occurs in any of the 4 tires.

Important: The vehicles spare tire is equipped with a tire pressure sensor; however, the system does not monitor the spare tire pressure. The purpose of this sensor is to allow the spare tire to be included in a tire rotation. For more information, refer to Tire Pressure Sensor Learn."
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