Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE
This message displays when the vehicle has detected that the battery voltage is dropping beyond a reasonable point. The battery saver system starts reducing certain features of t ...
If No Steam Is Coming From YourEngine
If you get an engine overheat warning but see or
hear no steam, the problem may not be too
serious. Sometimes the engine can get a little too
hot when you:
• Climb a long hill on a hot day.
â ...
Customer Assistance for Text Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or speech-impaired and who
use Text Telephones (TTYs), Buick has TTY equipment available at its Customer Assistance
Center. Any TTY user can comm ...
