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 status light is next to the OnStar buttons. If the status light is:
• Solid Green: System is ready.
• Flashing Green: On a call.
• Red: Indicates a problem.
Push 
or call 1-888-4-ONSTAR
(1-888-466-7827) to speak to an
Advisor.
Push 
to:
• Make a call, end a call, or answer an incoming call.
• Give OnStar Hands-Free Calling voice commands.
• Give OnStar Turn-by-Turn Navigation voice commands.
Requires the available Directions and Connections service plan.
Push to connect to a live
Advisor to:
• Verify account information or update contact information.
• Get driving directions. Requires the available Directions and Connections service plan.
• Receive On-Demand Diagnostics for a check on the vehicle’s key operating systems.
• Receive Roadside Assistance.
Push 
to get a priority connection
to an Emergency Advisor available
24/7 to:
• Get help for an emergency.
• Be a Good Samaritan or respond to an AMBER Alert.
• Get crisis assistance and evacuation routes.
See also:
Windows
WARNING!
Leaving children, helpless adults,
or pets in a vehicle with the
windows closed is dangerous.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
...
Fog Lamps
To replace the front fog lamp bulb:
1. Locate the fog lamp located under the front fascia.
2. Disconnect the electrical connector from the fog lamp bulb assembly.
3. Remove the bulb by turning it c ...
The Inside
Buick sells only three models now, and the Lucerne falls in the middle in
size, price and interior quality. Of the three large crossover models GM has
sold over the past couple years, the Buick En ...