Cadillac CTS - Manual (Page 201)

Tire Pressure Light (CTS-V Only)
If the vehicle has the
Tire Pressure Monitor
System, this light
will come on if the
system detects low tire
pressure.
This light will also come on for a bulb check when
the vehicle is started.
See Tire Pressure Monitor System on page 405
for more information.
For more information on the proper tire pressure,
see Loading Your Vehicle on page 321. For
more information on your tires, see Tires on
page 392.
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