Chevrolet 1998 Corvette Owner's Manual page 143

Press the GAGE button again to display the oil
temperature, such as:
OIL TEMP 234
O
F or
OILTEMP 112
O
C
Press the GAGE button again to display the coolant
temperature, such as:
COOLANT TEMP 123
O
F or
COOLANTTEMP51
O
C
Press the GAGE button again to display the transmission
fluid temperature (automatics only), such as:
TRANS FLUID 123
O
F o r
TRANS FLUID 51
O
C
Press the GAGE button again to display the battery
voltage, such as:
0
BATTERY 13.5 VOLTS
Press the GAGE button again to display the tire pressure
for the front tires (left and right), such as:
FRONT L34 R33 PSI or
FRONT L 234 R228 kPa
Press the GAGE button again to display the tire pressure
for the rear tires (left and right), such as:
REAR L34 R33 PSI or
0
REAR L234 R228 kPa