Keyless Access Operation
Some vehicles have the keyless access system that lets you lock and unlock the doors and access the liftgate without removing the remote transmitter from your pocket, purse, briefcase, etc. The keyless entry transmitter must be within 1m (3 ft) of the door being opened.
If the vehicle has this feature, there will be a body colored touch pad on the outside front door handles.
See also:
When to Check and Change Lubricant
It is not necessary to regularly check front axle fluid unless there is a leak
suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have
it inspected and repaired. ...
Door Locks
To lock or unlock a door manually:
Sedan and Wagon Base Model
From the inside, use the door lock
knob on the top of doors.
Sedan and Wagon Uplevel Model
From the inside, for a front door pull
...
OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can
connect to a live Advisor for Emergency, Security, Navigation, Connection, and
Diagnostic Services.
The OnStar system ...