Chevrolet Sonic Repair Manual: Lock Cylinder Coding - Ignition
The ignition lock cylinder uses 8 key cut positions, 1–8. The ignition cylinder
tumblers (3) are located on alternate sides of the cylinder (5). They are not snap-in
and are not self-retaining. It follows the key code with the first tumbler being
the first depth of the key code, closest to the head of the key.
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 ignition cylinder assembly (5) so the side with
the tumbler spring pocket located closest to the head of the cylinder is facing
up.
- Insert the tumbler spring (7) into each of the 4 spring
pockets of the cylinder assembly. This side of the cylinder used left tumblers.
- The first tumbler (3) to be loaded will be the first key
cut position, which is the first number in the key code. Install the tumbler
in the slot over the spring. Install the remaining right tumblers following
the key code and same process, pressing the tumblers in place until they are
secure.
- Rotate the cylinder assembly. Insert the tumbler spring
into each of the spring pockets of the cylinder assembly. This side of the cylinder
used right tumblers.
- The first tumbler (3) to be loaded will be the second
key cut position, the second number in the key code. Install the first tumbler
in the slot over the spring. Install the remaining left tumblers following the
key code and same process, pressing the tumblers in place until they are secure.
- Inspect for correct loading of the tumblers by inserting
the key into the cylinder. All tumblers should drop flush with the lock cylinder
body diameter.
- With the key in the cylinder assembly insert the round
connector (6), insert the retainer spring (2) in the retainer slot located in
the cylinder assembly. Insert the retainer (1) lining it up in the slot over
the spring. Depress the retainer and hold.
- Insert the cylinder into the sleeve (4) as shown in the
print. Make sure the actuator stays located properly in the cylinder.
- When the key is removed, the lock should stay together.
- Lightly lubricate the outside surface in the tumbler area of in the lock
body and down the key slot using the provided grease. Insert and extract the
key 5 times to lubricate the keyway.
- Insert the key and function the lock 3 times to distribute the grease inside
the sleeve.
- Verify the key position for inserting the lock into the column.
Front Side Door Lock Cylinder Rod Replacement
Callout
Component Name
Preliminary Procedure
Remove the rear side door window rear gu ...
The rear compartment lid lock cylinder uses 7 of the 7 cut positions. The tumbler
positions are staggered from side to side, 4 on one side and 3 on the other, are
not self-retaining, and ...
Other materials:
Remote Vehicle Start
If equipped, this feature allows the engine to be started from outside the vehicle.
(Remote Vehicle Start): This button
will be on the RKE transmitter if the vehicle has remote start.
The climate control system will use the previous settings during a remote start.
The rear defog may come on d ...
Heater Core Replacement
Heater Core Replacement
Callout
Component Name
Preliminary Procedures
Remove the Heater and Air Conditioning Evaporator and Blower Module.
Refer to Heater and Air Conditioning Evaporator and Blower Module Removal
and Inst ...
Engine Oil Cooler Inlet Pipe Replacement (LUW)
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling.
Remove the exhaust manifold with catalytic converter. Refer to Exhaust
Manifold with Catalytic Converter Replacement.
Remove the engine oil cooler pipe bolts (1) an ...
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