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:
Selecting the Alert Timing
The Collision Alert control is on the steering wheel. Press COLLISION ALERT to
set the alert timing to far, medium, near or off. The first button press shows the
current control setting on the DIC. Additional button presses will change this setting.
The chosen setting will remain until it is ...
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many parts have to be of top
quality and work well together if the vehicle is to have really good braking. The
vehicle was designed and tested with top-quality brake parts. When parts of the
braking system are replaced, be sure to get new, approv ...
Rear Brake Backing Plate Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal
and Installation.
Remove the rear wheel speed sensor, if equipped ...
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