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When you believe your system is not operating properly
The main function of the Tire Pressure Monitoring System is to warn you
when your tires need air. It can also warn you in the event the system is
no longer capable of functioning as intended. Please refer to the
following chart for information concerning your Tire Pressure Monitoring
System:
Low Tire
Pressure
Warning Light
Possible
cause
Customer Action Required
Solid Warning
Light
Tire(s)
under-inflated
1. Check your tire pressure to
ensure tires are properly inflated;
refer to Inflating your tires in this
chapter.
2. After inflating your tires to the
manufacturer’s recommended
inflation pressure as shown on the
Tire Label (located on the edge of
driver’s door or the B-Pillar), the
vehicle must be driven for at least
two minutes over 20 mph (32 km/h)
before the light will turn OFF.
Spare tire in
use
Your temporary spare tire is in use.
(This includes the optional full-sized
matching wheel and tire). Repair the
damaged road wheel/tire and
reinstall it on the vehicle to restore
system functionality. For a
description on how the system
functions, refer to When your
temporary spare tire is installed in
this section.
TPMS
malfunction
If your tires are properly inflated
and your spare tire is not in use and
the light remains ON, have the
system inspected by your authorized
dealer.
Tires, Wheels and Loading
166
2010 Town Car (tow)
Owners Guide, 1st Printing
USA (fus)