See also:

Inst (Instantaneous) Economy
Displays the current fuel economy in either liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number changes frequently as driving conditions change. It cannot be reset. ...

Battery
The battery supplies power to start the engine and operate any additional electrical accessories. - To avoid break–down or failure to start the vehicle, maintain a battery with full cranking ...

Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), Cadillac has TTY equipment available at its Customer Assistance Center. Any TTY user ...