Charging System Light

This light comes on briefly when the ignition key is turned to START, but the engine is not running, as a check to show it is working.
If it does not, have the vehicle serviced by your dealer.
The light should go out once the engine starts. If it stays on, or comes on while driving, there could be a problem with the charging system. A charging system message in the Driver Information Center (DIC) can also appear. See Battery Voltage and Charging Messages for more information. This light could indicate that there are problems with a generator drive belt, or that there is an electrical problem. Have it checked right away. If the vehicle must be driven a short distance with the light on, turn off accessories, such as the radio and air conditioner.
If the vehicle is a hybrid, see the hybrid supplement for more information.
See also:
Rear Compartment Fuse
Block (CTS Wagon)
This fuse block is on the right side
of the vehicle, behind the trim panel
in the rear compartment.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
...
Remote Vehicle Start
This feature allows you to start the engine from outside of the vehicle. It may
also start up the vehicle's heating or air conditioning systems and rear window
defogger. Normal operation of th ...
STS adds direct-injection V-6
For 2008, STS will be the first GM vehicle equipped with a new 3.6-liter
direct-injected V-6 engine. The new base powerplant, with 298 horsepower (222
kW), delivers 40 more horsepower; and torque ...






