Charging System Light
The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working.
It should go out when the engine is started.
If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer. Driving while this light is on could drain the battery.
When this light comes on, the Driver Information Center (DIC) also displays the SERVICE BATTERY CHARGING SYSTEM message.
See Vehicle Messages on page 5‑37 for more information.
If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner.
See also:
Automatic Operation
The system automatically controls the fan speed, air delivery, air conditioning,
and recirculation to heat or cool the vehicle to the selected temperature.
When the AUTO indicator light is on, the ...
Cargo & Towing
The Yukon Denali is a spacious three-row SUV for people, but that's it. If
there are six people and no cargo, the Yukon is a terrific place to be. If you
have a lot of cargo — you know, like lug ...
How to Inspect the Engine Air Cleaner/Filter
To inspect the air cleaner/filter, remove the engine air cleaner/filter from the vehicle by following Steps 1 through 6. When the engine air cleaner/filter is removed, lightly shake it to release loos ...