Chevrolet Corvette 2014 Owner's Manual page 207

The outer ring rotates to change the
modes, which display in the
instrument cluster.
Press the button in the center of the
knob for Stability Control and
Traction Control, or if the vehicle is
in Track mode with Performance
Traction Management. See Stability
Control and Traction Control in
or PTM in
.
When PTM is active, the outer ring
will change the PTM mode and the
Driver mode will display in the
instrument cluster.
Each mode is configured for use in
different driving conditions. Use:
Weather mode for rain
and snow.
Eco mode to improve fuel
economy.
Tour mode for comfortable
normal driving.
Sport mode for spirited on road
driving.
Track mode for track use.
There are 12 attributes that vary by
mode shown below. Not all vehicles
have all features, depending on the
vehicle options.
Driving and Operating 9-39