Power Door Locks
(Unlock): Press to unlock
all doors.
(Lock): Press to lock all
doors.
See “Power Door Locks” in Vehicle Personalization .
See also:
Customer Assistance for TextTelephone (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 ...
First Engine Oil Change After Every
80 000 km/50,000 Miles
• Engine air cleaner filter replacement. See Engine
Air Cleaner/Filter.
• Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy
city traffic in hot weathe ...
Using Voice Commands
During a Planned Route
Cancel Route
1. Push . System responds:
“OnStar ready,” then a tone. Say
“Cancel route.” System
responds: “Would you like to
cancel route directions to your
destination?”.
2. Sa ...