Chevrolet Sonic Owner's Manual: Lockout Protection
If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock.
If Unlocked Door Anti Lockout is turned on and: the vehicle is off, the driver door is open, and door locking is requested using a door lock switch or the RKE transmitter, all the doors will lock and only the driver door will unlock.
The Unlocked Door Anti Lockout feature can be turned on or off using the vehicle personalization menus. See Vehicle Personalization.
Lockout Protection can be manually overridden with the driver door open by pressing
and holding 
on the power door lock switch.
Automatic Door Locks
The vehicle is programmed so that when the doors are closed, the ignition is
on, and the shift lever is moved out of P (Park) for automatic transmissions, or
when the vehicle speed is above 13 km/ ...
Safety Locks
The rear door safety locks prevent passengers from opening the rear doors from
inside the vehicle.
Manual Safety Locks
If equipped, the safety lock is located on the inside edge of the rear door ...
Other materials:
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
Sedan Taillamp Shown, Hatchback Taillamp Similar
Back-up Lamp
Turn Signal Lamp
Stop Lamp/Taillamp
Sidemarker Lamp
To replace one of these bulbs:
Open the trunk.
Remove the two screws, which secure the taillamp assembly.
Remove the taillamp assembly by pulling it straight ...
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For normal
braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem. Have the brake system ...
Manual Transmission Shift Lever and Selector Lever Cable Adjustment
Remove the floor console. Refer to
Front Floor Console Replacement.
Lift upward and disengage (do not remove) both cable lock
adjusters (1) to release the internal cable assembly, one for each side.
Block the shift control housing, push the selector lever ( ...
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