Chevrolet Sonic Owner's Manual: How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system:
1. Press the MENU button to show Remaining Oil Life on the display. This display shows an estimate of the oil’s remaining useful life. If 99% is displayed, that means that 99% of the current oil life remains.
2. To reset the engine oil life system, press the SET/CLR button while the oil life display is active. After a few seconds, there will be a single chime and the oil life will be reset to 100%.
Be careful not to reset the oil life display accidentally at any time other than after the oil is changed. It cannot be reset accurately.
If the 
%CHANGE message in the DIC
comes back on when the vehicle is started, the engine oil life system has not reset.
Repeat the procedure.
When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil
and filter. This is based on a combination of factors which include engine revolutions,
engine temperature, and mile ...
Automatic Transmission Fluid
How to Check Automatic Transmission Fluid
It is not necessary to check the transmission fluid level. A transmission fluid
leak is the only reason for fluid loss. If a leak occurs, take the vehicle ...
Other materials:
Radio Antenna Replacement
Radio Antenna Replacement
Callout
Component Name
1
Radio Antenna
Procedure
Rotate the mast counterclockwise in order to release the mast from the
antenna base.
...
Brake Fluid Level Indicator Switch Replacement
Removal Procedure
Disconnect the brake fluid level indicator switch electrical connector.
Using a small, flat-bladed tool, lift the locking tab on the underside
of the brake fluid level indicator switch (1) and remove the switch.
Inspect the master cyli ...
Transmission Mount Bracket Replacement - Rear
Removal Procedure
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle.
Using a suitable jack stand, support the rear of the
transmission.
Remove and DISCARD the rear transmission mount bracket
to rear mount through bolt (1).
...
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