NEW BULLETIN FOR TIRE MONITOR:
Service VME - Tire Pressure Warning Light Comes On Intermittently in the Morning - keywords air cold lamp light low message sensor TPM wheel #PIT3770 - (Nov 3, 2005)
Service VME - Tire Pressure Warning Light Comes On Intermittently In The Morning
2006 Hummer H3
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
SERVICE VME
H3 customers are reporting that the tire pressure warning light comes on when the vehicle is first driven in the morning and then goes off shortly thereafter. This condition is more prevalent on vehicles with 33 inch tires that are part of the Adventure package. Because of the large volume of air in this tire, it experiences a greater pressure drop overnight when the temperature gets cold. To avoid this, the tire pressures must be inflated to the "Cold Tire Pressure" indicated on the tire placard which is on the bottom of the driver side "B" pillar. Marginally low tire pressures will drop to the point of triggering a light in cold temperatures. Calibration of the tire pressure monitoring system cannot be changed as it is regulated by government standards. Let's avoid customer complaints for this issue by assuring the pressures are correct upon new vehicle delivery.
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