NHTSA Complaint #10033484 — 2003 VOLVO XC90

MAXIMUM TIRE PRESSURE DISCREPANCY BETWEEN TIRE MANUFACTURER AND THE TIRE PRESSURE USED BY THE VEHICLE MANUFACTURER.THE MICHELIN PILOT HXMXM4 (235/60-18) WHICH ARE THE DEFAULT 18" TIRES ON THE VOLVO XC90 FROM THE FACTORY HAS A MAX 35PSI WHILE OTHER TIRES OF THE SAME SIZE HAS UPTO 51PSI MAX. THE VEHICLE MANUFACTURER RECOMMENDS 39PSI FOR FULL LOADS WHICH IS ABOVE THE MAX PSI.CONTACTED MICHELIN CUSTOMER SERVICE 1-800-847-3435 DIRECTLY TO INQUIRE. THEIR RESPONSE WAS "THE WRONG TIRE WAS INSTALLED." STILL WAITING FOR A RESPONSE FROM VOLVO.SO FAR NO OFFICIAL WORD FROM EITHER. NO ONE SEEMS TO BE AWARE OF THIS DISCREPANCY BUT WE RUN THE RISK OF OVER-INFLATING OR UNDER-INFLATING WHICH IS HUGE SAFETY HAZARD. *AK