Tires - Go Flat Slowly/Low Tire Lamp ON
Bulletin No.: 04-03-16-003Date: November 30, 2004
TECHNICAL
Subject:
Tire Slowly Loses Air, Low Tire Pressure Warning Light On, Check Tire Pressure Message Displayed (Replace Tire Pressure Sensor Grommet)
Models:
2004-2005 Cadillac Escalade, Escalade ESV, Escalade EXT
2004-2005 Chevrolet Suburban, Tahoe
2004-2005 GMC Yukon, Yukon Denali, Yukon XL
with Tire Pressure Monitoring System (RPO UJ6)
Condition
Some customers may comment on a tire that slowly loses air. Also, the Low Tire Pressure Warning light may be illuminated and a Check Tire Pressure message may be displayed on the DIC.
Cause
If the air loss is determined to be from the valve stem area, then the condition may be caused by the tire pressure sensor sealing grommet. The sealing grommet is serviced separately from the sensor. Sensor replacement is not required to correct this condition.
Correction
Note:
Tire pressure sensing systems rely on an electronic sensor/transmitters that are located in the drop center of the wheel. Proper care must be taken during tire mounting and dismounting to avoid sensor damage. When performing tire services, be sure to identify those wheel/tire assemblies that have a sensor located in the drop center of the wheel.
Proper tools and techniques will help avoid damage to the sensor and the wheel. If you rely on other providers for tire service, select those who can identify and service TPM equipped wheel/tires without causing unnecessary and expensive damage.
Replace the tire pressure sensor sealing grommet with P/N 25754190, following the Tire Pressure Sensor Grommet Replacement procedure in the Tire Pressure Monitoring sub-section of the Service Manual.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.