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:
Customer Assistance Office
Chevrolet encourages customers to call the toll-free number for assistance. However,
if a customer wishes to write or e-mail Chevrolet, the letter should be addressed
to:
United States and Puerto Rico
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 4 ...
Air Conditioning Evaporator Thermal Expansion Valve Replacement
Air Conditioning Evaporator Thermal Expansion Valve Replacement
Callout
Component Name
Preliminary Procedure
Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
Remove the air conditioning evaporator hos ...
Transmission Fluid Level and Condition Check
Removal Procedure
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
Remove the front suspension skid plate, if equipped.
Refer to Drivetrain and Front Suspension Frame Skid
Plate Replacement
Place a basin underneath the vehicle.
Clean away all ...
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