Check Gas Cap Light
Buick Rainier / Buick Rainier Owners Manual / Instrument Panel / Warning Lights, Gages, andIndicators / Check Gas Cap Light

If your vehicle has this light, it will come on if your gas cap is not securely fastened.
See also:
Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is ...
Capacities and Specifications
Engine Specifications
...
Vehicle Personalization
The audio system controls are used
to access the personalization
menus for customizing vehicle
features.
CONFIG (Configuration): Press to
access the Configuration
Settings menu.
Menu Knob: ...
