
Warning
Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke.

The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the front windows are up. To reduce the sound, open either a front window or the sunroof, if equipped.
Chevrolet Sonic. What to Add
Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids
and Lubricants.
Always clean the brake/clutch fluid reservoir cap and the area around the cap
before removing it. Th ...
Chevrolet Sonic. Seat Adjustment
Manual Seats
Warning
You can lose control of the vehicle if you try to adjust a driver seat while
the vehicle is moving. Adjust the driver seat only when the vehicle is not moving.
To adjust a ...
Chevrolet Sonic. Securing Child Restraints (Right Front Passenger Seat)
This vehicle has airbags. A rear seat is a safer place to secure a forward-facing
child restraint. See Where to Put the Restraint.
In addition, the vehicle has a passenger sensing system which is d ...