If your Hummer came with the tire pressure monitoring system (TPMS), the warning light may stay on due to a software issue with the tire pressure monitor control unit. There is updated control module software available from the dealer to correct this concern. Still, you should always check your tire pressures when you see this warning light, including the spare tire. Refer to TSB# 08-03-16-004A.
Proper tire inflation is critical to the safe operation of all vehicles. Tire pressure specifications can be found on an inflation sticker on the driver's door frame or in the owners manual. Fuel mileage, increased tire wear, ride quality, handling, and road noise are just a few of the problems that might arise from improperly inflated tires.
Some tires may get a "flat spot" after sitting overnight. This can cause a slight tire shake until the tires reach operating temperature. This is a normal condition.
Hummer Tire Questions and Answers
We'll, I don't know how to describe the shake.
All I know is that the car shakes to the point that it can be felt on the seats.
I don't know where this comes from.
Regarding my ...
And hearing a tinkering sound under vehicle when I cut it off .
i kooked in the book and just found that the symbol is for tires nothing about serv TPM
There's a crack in my radiator and it must be replaced. My mechanic says he has to cut the a/c hose to put the radiator in. Is this true?