Up-Shift Light
The vehicle may have an up-shift light. It indicates when to shift to the next higher gear for best fuel economy.
See Manual Transmission for more information.
For the CTS-V, the tracer lights function as a performance up-shift light.
The tracers flash to indicate when to shift to the next higher gear to avoid the engine speed limit.
See Automatic Transmission or Manual Transmission for more information.
See also:
How the System Works
The SBZA symbol lights up in the side mirrors when the system detects a vehicle
in the side blind zone, indicating it may be unsafe to change lanes. Before making
a lane change, check the SBZA dis ...
Playing from the Hard Drive Device
HDD (Hard Drive Device): Press
the HDD button to start playing
tracks from the HDD. HDD displays
and playback resumes from where it
was last stopped.
HDD Playback ModeThe infotainment system ...
Low Fuel Warning Light
This light is located near the fuel gauge and comes on briefly when the
ignition is turned on as a check to show it is working.
It also comes on when the fuel tank is low on fuel. The light tu ...