
Turning the ignition key to MAR, the multifunction display shows the message “Check active”: the diagnostic phase of all the electronic systems on the car has started. This lasts few seconds: if no faults are detected, when the engine has started, the display shows the “Check OK” message. See section “Warning lights and messages” if faults are found.

Chevrolet Sonic. Engine Oil
To ensure proper engine performance and long life, careful attention must be
paid to engine oil. Following these simple, but important steps will help protect
your investment:
Always use engin ...
Chevrolet Sonic. Buying New Tires
GM has developed and matched specific tires for the vehicle. The original equipment
tires installed were designed to meet General Motors Tire Performance Criteria Specification
(TPC Spec) system r ...
Chevrolet Sonic. Forward Collision Alert (FCA) Warning Light
These lights are on the center of the instrument panel.
The vehicle ahead light comes on when a vehicle is detected ahead and a possible
collision can occur.
The forward collision alert comes ...