Chevrolet Sonic Owner's Manual: Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery.
If some interior lamps are left on and the ignition is turned off, the battery rundown protection system automatically turns the lamp off after some time.
Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's
temperature and state of charge. It then adjusts the voltage for best performance
and extended life of the battery. ...
Other materials:
Automatic Transmission Shift Lock Control Function Check
Warning
When you are doing this inspection, the vehicle could move suddenly. If the
vehicle moves, you or others could be injured.
1. Before starting this check, be sure there is enough room around the vehicle.
It should be parked on a level surface.
2. Apply the parking brake. Be ready to ap ...
Engine Block Disassemble
Remove the cylinder head locating (1, 2).
Remove the oil pressure switch (1).
Remove the knock sensor bolt (2) and the knock sensor (1).
Clean the thread.
Remove the oil flow check valve (1).
Remove the oil pressure rel ...
Electronic Ignition System Description
Electronic Ignition System Operation
The electronic ignition system produces and controls the high energy secondary
spark. This spark ignites the compressed air/fuel mixture at precisely the correct
time, providing optimal performance, fuel economy, and control of exhaust emissions.
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