Chevrolet Sonic Owner's Manual: 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.
Press 
or call 1-888-4-ONSTAR (1-888-466-7827)
to speak to an Advisor.
Press 
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.
Press 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 of the vehicle’s key operating systems.
- Receive Roadside Assistance.
Press the OnStar Emergency button 
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 assistance in severe weather or other crisis and evacuation routes.
OnStar
...
OnStar Services
Emergency
With Automatic Crash Response, the built-in system can automatically connect
to help in most crashes, even if help cannot be requested.
Press to connect to an Emergency
Advisor. GPS t ...
Other materials:
Reclining Seatbacks
Warning
If either seatback is not locked, it could move forward in a sudden stop or
crash. That could cause injury to the person sitting there. Always push and pull
on the seatbacks to be sure they are locked.
To recline a manual seatback:
1. Lift the lever.
If necessary, move the safety b ...
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For normal
braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem. Have the brake system ...
Spark Plug Inspection
Spark Plug Usage
Ensure that the correct spark plug is installed. An incorrect spark
plug causes driveability conditions.
Ensure that the spark plug has the correct heat range. An incorrect
heat range causes the following conditions:
Spark plug fouling—Colder plu ...
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