Chevrolet 2010 HHR Owner's Manual page 369

If the warning light comes on, stop as soon as possible
and inflate the tires to the recommended pressure
shown on the tire loading information label. See
Loading the Vehicle on page 5 24.
At the same time a message to check the pressure in a
specific tire appears on the Driver Information Center
(DIC) display. The low tire pressure warning light and
the DIC warning message come on at each ignition
cycle until the tires are inflated to the correct inflation
pressure. Using the DIC, tire pressure levels can be
viewed by the driver. For additional information and
details about the DIC operation and displays see DIC
Operation and Displays on page 4 46 and DIC
Warnings and Messages on page 4 48.
The low tire pressure warning light may come on in cool
weather when the vehicle is first started, and then turn
off as you start to drive. This could be an early indicator
that the air pressure in the tire(s) are getting low and
need to be inflated to the proper pressure.
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A Tire and Loading Information label shows the size of
your vehicle's original equipment tires and the correct
inflation pressure for your vehicle's tires when they are
cold. See Loading the Vehicle on page 5 24, for an
example of the Tire and Loading Information label and
its location on your vehicle. Also see Inflation - Tire
Pressure on page 6 63.
Your vehicle's TPMS system can warn you about a low
tire pressure condition but it does not replace normal
tire maintenance. See Tire Inspection and Rotation on
page 6 69 and Tires on page 6 54.
Notice: Using non approved tire sealants could
damage the Tire Pressure Monitor System (TPMS)
sensors. TPMS sensor damage caused by using an
incorrect tire sealant is not covered by the vehicle
warranty. Always use the GM approved tire sealant
available through your dealer/retailer.
Factory-installed Tire Inflator Kits use a GM approved
liquid tire sealant. Using non-approved tire sealants
could damage the TPMS sensors. See Tire Sealant and
Compressor Kit on page 6 78 for information regarding
the inflator kit materials and instructions.