2012 CHEVROLET SILVERADO turn signal bulb

Black plate (6,1)Chevrolet Silverado Owner Manual - 2012
6-6 Lighting
Turn and Lane-Change
Signals
An arrow on the instrument panel
cluster flashes in the direction of the
turn or lane change.
Move the lever all the way up or
down to signal a turn.
Raise or lower the lever for less
than one second until the arrow
starts to flash to signal a lane
change. This causes the turn
signals to automatically flash
three times. It will flash six times
if Tow/Haul Mode is active.Holding the turn signal lever for
more than one second will cause
the turn signals to flash until you
release the lever.
The lever returns to its starting
position whenever it is released.
If after signaling a turn or a lane
change the arrows flash rapidly or
do not come on, a signal bulb could
be burned out.
Have the bulbs replaced. If the bulb
is not burned out, check the fuse.
See
Fuses and Circuit Breakers on
page 10‑47.
Turn Signal On Chime
If the turn signal is left on for more
than 1.2 km (0.75 mi), a chime
sounds at each flash of the turn
signal, if the vehicle has a radio.
The message TURN SIGNAL ON
will also appear in the Driver
Information Center (DIC). To turn
the chime and message off, move
the turn signal lever to the off
position.
Fog Lamps
For vehicles with fog lamps, the
control is located next to the exterior
lamps control on the instrument
panel, to the left of the steering
column.
The ignition must be in the
ON/RUN position for the fog lamps
to come on.

Black plate (84,1)Chevrolet Silverado Owner Manual - 2012
9-84 Driving and Operating
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move your hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making Turns
Notice:Making very sharp turns
while trailering could cause the
trailer to come in contact with the
vehicle. The vehicle could be
damaged. Avoid making very
sharp turns while trailering.
When turning with a trailer, make
wider turns than normal. Do this
so the trailer will not strike soft
shoulders, curbs, road signs, trees,
or other objects. Avoid jerky or
sudden maneuvers. Signal well in
advance. If the trailer turn signal bulbs burn
out, the arrows on the instrument
panel will still flash for turns. It is
important to check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a
lower gear
beforestarting down a
long or steep downgrade. If the
transmission is not shifted down,
the brakes might get hot and no
longer work well.
Vehicles can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts too
often under heavy loads and/or hilly
conditions.
The Tow/Haul Mode may be used if
the transmission shifts too often.
See Tow/Haul Mode on page 9‑43.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at
a lower temperature than at normal altitudes. If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle may show signs similar to
engine overheating. To avoid this,
let the engine run while parked,
preferably on level ground, with the
automatic transmission in P (Park)
for a few minutes before turning the
engine off. If the overheat warning
comes on, see
Engine Overheating
on page 10‑23.
Parking on Hills
{WARNING
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.

Black plate (1,1)Chevrolet Silverado Owner Manual - 2012
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . 10-10
Automatic Transmission Fluid (4-Speed Transmission) . . . 10-11
Automatic Transmission Fluid (6-Speed
Transmission) . . . . . . . . . . . . . 10-14
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-17
Hydraulic Clutch . . . . . . . . . . . . 10-17 Engine Air Cleaner/Filter . . . . 10-17
Cooling System . . . . . . . . . . . . 10-19
Engine Coolant . . . . . . . . . . . . . 10-20
Engine Overheating . . . . . . . . 10-23
Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-26
Engine Fan . . . . . . . . . . . . . . . . . 10-26
Power Steering Fluid . . . . . . . 10-27
Washer Fluid . . . . . . . . . . . . . . . 10-28
Brakes . . . . . . . . . . . . . . . . . . . . . 10-28
Brake Fluid . . . . . . . . . . . . . . . . . 10-30
Battery . . . . . . . . . . . . . . . . . . . . . 10-31
Four-Wheel Drive . . . . . . . . . . . 10-32
Front Axle . . . . . . . . . . . . . . . . . . 10-33
Rear Axle . . . . . . . . . . . . . . . . . . 10-34
Noise Control System . . . . . . 10-36
Starter Switch Check . . . . . . . 10-36
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-37
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-38
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-38
Wiper Blade Replacement . . . . . . . . . . . . . . 10-39
Glass Replacement . . . . . . . . 10-39
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-39
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-42
Halogen Bulbs . . . . . . . . . . . . . . 10-42
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-42
Pick-Up Box Identification and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . 10-43
Taillamps (Chassis Cab Models) . . . . . . . . . . . . . . . . . . . 10-43
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . 10-44
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . 10-44
License Plate Lamp . . . . . . . . 10-45
Replacement Bulbs . . . . . . . . . 10-45

Black plate (42,1)Chevrolet Silverado Owner Manual - 2012
10-42 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑45.
For any bulb‐changing procedure
not listed in this section, contact
your dealer.
Halogen Bulbs
{WARNING
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps
A. Park/Turn Signal/
Sidemarker Lamp
B. Low‐Beam Headlamp
C. High‐Beam Headlamp 1. Open the hood. See
Hood on
page 10‑5
2. If you are replacing the bulb on the passenger side, remove the
Engine Air Cleaner cover.
See Engine Air Cleaner/Filter on
page 10‑17 for more information.
3. Reach in and access the bulb sockets from inside the engine
compartment.
4. Turn the bulb socket counterclockwise to remove it
from the headlamp assembly
and pull it straight out.
5. Unplug the electrical connector from the old bulb by releasing
the clips on the bulb socket.
6. Replace it with a new bulb.
7. Plug in the electrical connector.
8. Reinstall the new bulb socket into the headlamp assembly and
turn it clockwise to secure.

Black plate (43,1)Chevrolet Silverado Owner Manual - 2012
Vehicle Care 10-43
Pick-Up Box Identification
and Fender Marker
Lamps
The pick-up box identification lamps
are LEDs. For replacement of the
LED lighting assembly contact your
dealer.
To replace a pickup box fender
marker lamp bulb:
1. Press the tab from the back toremove the lamp.
2. Turn the bulb socket counterclockwise to remove
from the lamp assembly.
3. Gently pry the bulb from the socket.
4. Install the new bulb in socket.
5. Reinstall socket into lamp assembly.
6. Reinstall the lamp assembly.
Taillamps
(Chassis Cab Models)
A. Backup Lamp
B. Stoplamp/Taillamp/Turn Signal Lamp To replace one of these bulbs:
1. Remove the four screws.
2. Lift the lens off the lamp
assembly.
3. Turn the old bulb counterclockwise and
pull the it straight out from
the socket.
4. Install a new bulb into the socket, turn it clockwise, and
press it in until it is tight.
5. Reinstall the lens and the four screws.

Black plate (44,1)Chevrolet Silverado Owner Manual - 2012
10-44 Vehicle Care
Taillamps, Turn Signal,
Stoplamps, and
Back-Up Lamps
To replace one of these bulbs:
1. Open the tailgate. SeeTailgate
on page 2‑10 for more
information.
2. Remove the two rear lamp assembly screws near the
tailgate latch strikerpost and pull
rearward until disengaging the
two outer pins on the taillamp
assembly from the vehicle.
A. Stoplamp/Taillamp/TurnSignal Lamp
B. Back-up Lamp
3. Turn the bulb socket counterclockwise to remove it
from the taillamp assembly.
4. Pull the old bulb straight out from the socket.
5. Press a new bulb into the socket and turn the socket clockwise
into the taillamp assembly.
6. Reinstall the taillamp assembly.
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp
To replace one of these bulbs:
1. Remove the two screws and lift off the lamp assembly.
A. Cargo Lamp
B. Center High-MountedStoplamp (CHMSL) Bulb

Black plate (46,1)Chevrolet Silverado Owner Manual - 2012
10-46 Vehicle Care
Exterior Lamp BulbNumber
License
Plate Lamp 168
Sidemarker Lamp/
Stoplamp/Taillamp/
Turn Signal Lamp 3047K
Stoplamp/Turn
Signal Lamp/
Taillamp* 1157
* Chassis Cab Models
For replacement bulbs not listed
here, contact your dealer.Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating. If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.

Black plate (2,1)Chevrolet Silverado Owner Manual - 2012
i-2 INDEX
AutomaticDoor Locks . . . . . . . . . . . . . . . . . . . . 2-8
Headlamp System . . . . . . . . . . . . . 6-4
Automatic Transmission . . . . . . . 9-38 Fluid . . . . . . . . . . . . . . . . . 10-11, 10-14
Manual Mode . . . . . . . . . . . . . . . . . 9-42
Shift Lock ControlFunction Check . . . . . . . . . . . 10-37
Auxiliary Roof Mounted Lamp . . . . . . . . . . . 6-7
Auxiliary Devices . . . . . . . . . . . . . . 7-34
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-33
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-34
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-31
Jump Starting . . . . . . . . . . . . . . . 10-92
Load Management . . . . . . . . . . . . . 6-9
Power Protection . . . . . . . . . . . . . 6-10
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-42
Blade Replacement, Wiper . . . . . . . . . . . . . . . . . . . . . . . 10-39
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-52 Brake
Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 9-26
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-28 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-58
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-61
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-30
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-60
System Messages . . . . . . . . . . . . 5-42
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Break-In, New Vehicle . . . . . . . . . 9-26
Bulb Replacement . . . . . . . . . . . . 10-45 Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . 10-44
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Halogen Bulbs . . . . . . . . . . . . . . 10-42
Headlamp Aiming . . . . . . . . . . . 10-39
Headlamps . . . . . . . . . . . . . . . . . 10-42
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-42
License Plate Lamps . . . . . . . 10-45 Bulb Replacement (cont'd)
Pick-up Box Identification
and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . 10-43
Taillamps . . . . . . . . . . . . . . . . . . . 10-43
Taillamps, Turn Signal, Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-44
Buying New Tires . . . . . . . . . . . . . 10-72
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-6
California
Fuel Requirements . . . . . . . . . . . 9-77
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-3
Camera, Rear Vision . . . . . . . . . . 9-70
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-36
Tailgate . . . . . . . . . . . . . . . . . . . . . . . 2-10
Winter Driving . . . . . . . . . . . . . . . . 9-14