CHEVROLET SILVERADO 2011 2.G Owners Manual

Black plate (39,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-39
On all vehicles, the ignition key
should come out only in LOCK/OFF.
Contact your dealer if service is
required.
Park Brake and P (Park)
Mechanism Check
{WARNING
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
.To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift
to P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should
be inspected for wear or cracking.
See Scheduled Maintenance
on
page 11‑2for more information on
wiper blade inspection.
Replacement blades come in
different types and are removed in
different ways. To remove the wiper
blade:
1. Pull the windshield wiper arm connector away from the
windshield.

Black plate (40,1)Chevrolet Silverado Owner Manual - 2011
10-40 Vehicle Care
2. Squeeze the grooved areas oneach side of the blade, and turn
the blade assembly away from
the arm connector.3. Install the new blade onto thearm connector and make sure
the grooved areas are fully set
in the locked position.
For the proper type and size, see
Maintenance Replacement Parts
on
page 11‑11.
Glass Replacement
If the windshield or front side
glass must be replaced, see your
dealer to determine the correct
replacement glass.
Headlamp Aiming
The vehicle has a visual optical
headlamp aiming system. The aim
of the headlamps has been preset
at the factory and should need no
further adjustment.
However, if the vehicle is damaged
in a crash, the aim of the headlamps
may be affected and adjustment
may be necessary.
If oncoming vehicles flash their high
beams at you, this may mean the
vertical aim of the headlamps needs
to be adjusted.
It is recommended that the vehicle
be taken to your dealer for service if
the headlamps need to be adjusted.
It is possible, however, to re-aim the
headlamps as described.

Black plate (41,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-41
The vehicle should:
.Be placed so the headlamps
are 7.6 m (25 ft) from a
light‐colored wall.
.Have all four tires on a level
surface which is level all the way
to the wall.
.Be placed so it is perpendicular
to the wall.
.Not have any snow, ice, or mud
on it.
.Be fully assembled and all other
work stopped while headlamp
aiming is being performed.
.Be loaded with a full tank of
fuel and one person or 75 kg
(160 lbs) sitting on the
driver seat.
.Have the tires properly inflated.
.Have the spare tire in its proper
location in the vehicle.Headlamp aiming is done with the
vehicle's low-beam headlamps.
The high-beam headlamps will be
correctly aimed if the low-beam
headlamps are aimed properly.
To adjust the vertical aim:
1. Open the hood. See
Hood
on
page 10‑5
2. Locate the aim dot on the lens of the low‐beam headlamp. 3. Record the distance from the
ground to the aim dot on the
low‐beam headlamp.
4. At a wall, measure from the
ground upward (A) to the
recorded distance from
Step 3 and mark it.

Black plate (42,1)Chevrolet Silverado Owner Manual - 2011
10-42 Vehicle Care
5. Draw or tape a horizontal line (B)on the wall the width of the
vehicle at the height of the
mark in Step 4.
Notice: Do not cover a headlamp
to improve beam cut-off when
aiming. Covering a headlamp may
cause excessive heat build-up
which may cause damage to the
headlamp.
6. Turn on the low-beam
headlamps and place a piece
of cardboard or equivalent in
front of the headlamp not being
adjusted. This allows only the
beam of light from the headlamp
being adjusted to be seen on the
flat surface.
7. Locate the vertical headlampaiming screws, which are under
the hood near each headlamp
assembly.
The adjustment screw can be
turned with an E8 Torx
®socket.
8. Turn the vertical aiming screw until the headlamp beam
is aimed to the horizontal tape
line. Turn it clockwise or
counterclockwise to raise or
lower the angle of the beam.
9. Make sure that the light from theheadlamp is positioned at the
bottom edge of the horizontal
tape line. The lamp on the
left (A) shows the correct
headlamp aim. The lamp
on the right (B) shows the
incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite headlamp.

Black plate (43,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-43
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbson
page 10‑46.
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 (Silverado)
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 10‑18for 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 (44,1)Chevrolet Silverado Owner Manual - 2011
10-44 Vehicle Care
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 (45,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-45
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
To replace one of these bulbs:
1. Open the tailgate. SeeTailgate
on page 2‑11for 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.

Black plate (46,1)Chevrolet Silverado Owner Manual - 2011
10-46 Vehicle Care
A. Cargo Lamp
B. Center High-MountedStoplamp (CHMSL) Bulb
2. On the reverse side of the lamp assembly, remove the bulb
socket by turning it one quarter
turn counterclockwise and pull it
straight out.
3. Remove the bulb by pulling it straight out of the socket.
4. Install the bulb by pushing the bulb straight into the socket. 5. Install the bulb socket into the
lamp asembly by turning it
one quarter turn clockwise.
6. Reinstall the lamp assembly and tighten the screws.
License Plate Lamp
To replace one of these bulbs:
1. Reach under the rear bumper forthe bulb socket.
2. Turn the bulb socketcounterclockwise and pull the
bulb socket out of the connector. 3. Pull the old bulb straight out
from the bulb socket.
4. Install the new bulb.
5. Reverse Steps 1 and 2 to reinstall the bulb socket.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 921
Back-up Lamp* 1156
Cargo Lamp
and Center
High-Mounted
Stoplamp
(CHMSL) 912
Fender
Marker Lamp 168
High-Beam
Headlamp 9005LL

Black plate (47,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-47
Exterior Lamp BulbNumber
Low-Beam
Headlamp H11LL
License
Plate Lamp 168
Sidemarker Lamp/
Stoplamp/Taillamp/
Turn Signal Lamp 3047
Stoplamp/Turn
Signal Lamp/
Taillamp* 1157K
* 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
the following in the vehicle:
.Headlamp Wiring
.Windshield Wiper Motor
.Power Windows and Other
Power Accessories 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.

Black plate (48,1)Chevrolet Silverado Owner Manual - 2011
10-48 Vehicle Care
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.
Always clear ice and heavy snow
from the windshield before using
the windshield wipers.
If the overload is caused by an
electrical problem and not snow
or ice, be sure to get it fixed.
Fuses and Circuit
Breakers
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
The wiring circuits in the vehicle
are protected from short circuits
by a combination of fuses, circuit
breakers and fusible thermal links.
This greatly reduces the chance of
fires caused by electrical problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
If you ever have a problem on the
road and don't have a spare fuse,
you can borrow one that has thesame amperage. Just pick some
feature of your vehicle that you can
get along without
–like the radio
or cigarette lighter –and use its
fuse, if it is the correct amperage.
Replace it as soon as you can.
Engine Compartment
Fuse Block
If the vehicle has a diesel engine,
see the Duramax Diesel supplement
for more information.
If the vehicle is a hybrid, see
the hybrid supplement for more
information.
The Engine Compartment Fuse
Block is located in the engine
compartment, on the driver side
of the vehicle.