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:
Water Pump Pulley Replacement (LUW)
Removal Procedure
Remove the air cleaner housing. Refer to Air Cleaner Assembly Replacement.
Support the engine with a suitable jack.
Remove the engine mount. Refer to Engine Mount Replacement.
Raise engine to access the bolts.
Loosen the 3 water pu ...
Intake Manifold Replacement (LUW)
Removal Procedure
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement.
Disconnect wiring harness plug.
Disconnect the pipes from ...
Starter Replacement (LUV)
Removal Procedure
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
If equipped with a front suspension skid plate, remove the drivetrain
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