Chevrolet Sonic Owner's Manual: Hill Start Assist (HSA)
This vehicle has an HSA feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward, during vehicle drive off. After the driver completely stops and holds the vehicle in a complete standstill on a grade, HSA will be automatically activated. During the transition period between when the driver releases the brake pedal and starts to accelerate to drive off on a grade, HSA holds the braking pressure for a maximum of two seconds to ensure that there is no rolling. The brakes will automatically release when the accelerator pedal is applied within the two-second window. It will not activate if the vehicle is in a drive gear and facing downhill, or if the vehicle is facing uphill and in R (Reverse).
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping
or decreasing vehicle speed in emergency driving conditions. This feature automatically
uses the stability system ...
Ride Control Systems
Traction Control/Electronic Stability Control ...
Other materials:
Front Fog Lamp Replacement
Front Fog Lamp Replacement
Callout
Component Name
Preliminary Procedure
Remove either the right front or left front wheelhouse liner. Refer
to Front Wheelhouse Liner Replacement.
Disconnect the electrical connector from t ...
Hood Hinge Replacement
Hood Hinge Replacement
Callout
Component Name
Preliminary Procedures
Remove the hood. Refer to Hood Replacement.
Remove the front fender. Refer to Front Fender Replacement.
1
Hood Hinge Bolt (Q ...
Crankshaft Rear Oil Seal Replacement
Special Tools
EN-658 Rear Main Seal Installer
For equivalent regional tools, refer to Special Tools.
Removal Procedure
If equipped with automatic transmission, remove the flex plate. Refer
to Automatic Transmission Flex Plate Replacement.
If equipped with a manual transmis ...
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