Chevrolet Sonic Repair Manual: Front Side Door Lock Cylinder Coding (Non Free Wheeling)
The door lock cylinder uses 8 of the 8?€‰cut positions. The tumbler positions
are staggered from side to side, 4 on one side and 4 on the other, are not self-retaining,
and are not snap in.
Note:
All lock cylinders for side milled keys have right and left
tumblers. The location of the tooth of the tumbler determines whether it
is right of left. Illustrations in this procedure show the right tumblers
on the top and the left tumblers on the bottom. All tumblers are marked
1R, 1L, 2R, or 2L. The number being cut depth and the letter meaning right
or left.
- Hold the door lock cylinder?€‰(1) so the side with the 4?€‰tumbler spring
pockets faces up, pocket nearest to the cylinder head.
- Insert the tumbler springs?€‰(2) into the 4?€‰spring pockets. This side
uses left tumblers.
- Install the tumbler?€‰(3) for key cut position one in the slot nearest to
the front of the lock cylinder. Install the remaining tumblers, key cut positions
3, 5, and 7, following the key code and same process. Press the tumblers in
place until they are secure.
- Check the correct loading of the tumblers by inserting the key into the
cylinder. All tumblers should be flush with the lock cylinder body.
- Turn the cylinder so the side with the 4?€‰tumbler spring wells faces up.
This side uses right tumblers.
- Insert the tumbler springs into the 4?€‰spring pockets.
- The first tumbler closest to the front of the lock cylinder to be loaded
will be the second key cut position, the second number in the key code. Install
the remaining tumblers for the key cut positions 4, 6, and 8. Press the tumblers
in place until they are secure.
- Check the correct loading of the tumblers by inserting the key into the
cylinder. All tumblers should be flush with the lock cylinder body.
- Insert the key and lightly lubricate the cylinder body diameter and tumbler
surfaces and a small amount in the head of the cylinder using the supplied grease.
- Insert the sleeve?€‰(4) onto the cylinder assembly.
- Insert the assembly into the case?€‰(5).
- With the lock cylinder assembly installed in the case?€‰(5), install the
retainer?€‰(6) and stake the retainer in place using a small punch and hammer
to peen the case material onto the exposed ends of the installed retainer?€‰(6).
- Insert the key into the lock and function the lock to check for proper assembly
and smooth operation.
Special Tools
BO-49753 Assembly Tool
The door lock cylinder uses 8 of the 8?€‰cut positions. The tumbler positions
are staggered from side to side, 4 on one side and 4 on the other, are ...
Front Side Door Lock Cylinder Opening Cover Replacement
Callout
Component Name
1
Front Side Door Lock Cylinder Opening C ...
Other materials:
Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor System (TPMS).
The low tire pressure warning light alerts to a significant loss in pressure
of one of the vehicle's tires. If the warning light comes on, stop as soon as possible
and inflate the tires to the recommended pressure shown on the T ...
Rear Side Door Opening Floor Carpet Retainer Replacement
Rear Side Door Opening Floor Carpet Retainer Replacement
Callout
Component Name
Preliminary Procedure
Remove the rear seat cushion. Refer to Rear Seat Cushion Removal and
Installation.
1
Rear Si ...
Brake Drum Replacement (J93, J94)
Special Tools
CH-41013 Rotor Resurfacing Kit
CH-42450-A Wheel Hub Resurfacing Kit
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Warning: Refer to Brake Dust Warning.
Release the park brake.
Raise and support the vehicle. Refer to Lif ...
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