GMC Cadillac CTS 2004 Owner's Manual page 176

Tire Pressure
When the tire pressure is displayed you will see a
vehicle in the display. The numbers in each corner
represent the tire pressure for the corresponding tire.
The tire pressure will be displayed in psi or kPa.
If any of the tires are blinking on the vehicle in the
display, this means that the tire pressure in that tire is
either high or low. See Tire Pressure Monitor System
(CTS-V) on page 5-70 for more information.
Lateral Acceleration
Lateral acceleration is a measure of how hard you are
taking a corner. For example, when you are turning right
you will feel your body push to the left. This force is
measured in a "g". This gage will display from 0.00 g to
1.2 g. The lowest reading means there is no lateral
acceleration. The highest reading means the force the
driver is feeling is 1.2 times the acceleration due
to gravity.
When the lower button on the outboard switch is
pressed and held while the Lateral Acceleration display
is being shown, the peak hold values—both tick
marks and numbers—will be reset to zero.
3-56
Warning Messages
The warning messages that are described in the
following text are also shown in the tachometer display.
While any warning messages are shown, pressing
either button on the outboard switch will acknowledge
the warning and then display the gage relating to
the error message. For instance, if a tire is below the
minimum recommended pressure, the tire pressure
warning message will blink on and off (5 times for a
low tire warning, continuously for a flat tire warning).
The driver can go to the tire pressure display
immediately by pressing either button on the
outboard switch.