ignition CHEVROLET SILVERADO 1500 2014 Manual Online
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Page 364 of 542

Black plate (98,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
9-98 Driving and Operating
CHECK TRAILER WIRING: This
message will display if:
1. The ITBC system firstdetermines connection to a
trailer with electric brakes and
then the trailer harness becomes
disconnected from the vehicle.
If the disconnect occurs while
the vehicle is stationary, this
message will automatically turn
off in about 30 seconds. This
message will also turn off if it is
acknowledged or if the trailer
harness is reconnected.
If the disconnect occurs while
the vehicle is moving, this
message will continue until the
ignition is turned off. This
message will also turn off if it is
acknowledged or if the trailer
harness is reconnected.
2. There is an electrical fault in the wiring to the trailer brakes. This
message will continue as long
as there is an electrical fault in the trailer wiring. This message
will also turn off if it is
acknowledged.
To determine if the electrical fault is
on the vehicle side or trailer side of
the trailer wiring harness
connection:
1. Disconnect the trailer wiring harness from the vehicle.
2. Turn the ignition off.
3. Wait 10 seconds, then turn the ignition back to RUN.
4. If the CHECK TRAILER WIRING message reappears, the
electrical fault is on the
vehicle side.
If the CHECK TRAILER WIRING
message only reappears when
connecting the trailer wiring
harness to the vehicle, the
electrical fault is on the
trailer side.
SERVICE TRAILER BRAKE
SYSTEM: This message will display
when there is a problem with the
ITBC system. If this message continues over multiple ignition
cycles, there is a problem with the
ITBC system. Have the vehicle
serviced.
If either the CHECK TRAILER
WIRING or SERVICE TRAILER
BRAKE SYSTEM message displays
while driving, the ITBC system may
not be fully functional or may not
function at all. When traffic
conditions allow, carefully pull the
vehicle over to the side of the road
and turn the ignition off. Check the
wiring connection to the trailer and
turn the ignition back on. If either of
these messages continues, either
the vehicle or trailer needs service.
A GM dealer may be able to
diagnose and repair problems with
the trailer. However, any diagnosis
and repair of the trailer is not
covered under the vehicle warranty.
Contact your trailer dealer for
assistance with trailer repairs and
trailer warranty information.
Page 371 of 542

Black plate (1,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Oil . . . . . . . . . . . . . . . . . . 10-10
Engine Oil Life System . . . . . 10-13
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-14
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-17
Hydraulic Clutch . . . . . . . . . . . . 10-17
Engine Air Cleaner/Filter . . . . 10-18
Cooling System . . . . . . . . . . . . 10-19
Engine Coolant . . . . . . . . . . . . . 10-20
Engine Overheating . . . . . . . . 10-23 Overheated Engine
Protection Operating Mode
(6.0L V8 Engine Only) . . . . . 10-25
Engine Fan . . . . . . . . . . . . . . . . . 10-26
Power Steering Fluid (1500 Series) . . . . . . . . . . . . . . . . . . . . 10-26
Power Steering Fluid (2500/ 3500 Series) . . . . . . . . . . . . . . 10-26
Washer Fluid . . . . . . . . . . . . . . . 10-27
Brakes . . . . . . . . . . . . . . . . . . . . . 10-28
Brake Fluid . . . . . . . . . . . . . . . . . 10-29
Battery . . . . . . . . . . . . . . . . . . . . . 10-31
Four-Wheel Drive . . . . . . . . . . . 10-31
Front Axle . . . . . . . . . . . . . . . . . . 10-33
Rear Axle . . . . . . . . . . . . . . . . . . 10-34
Noise Control System . . . . . . 10-35
Starter Switch Check . . . . . . . 10-36
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-37
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-37
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-37
Wiper Blade Replacement . . . . . . . . . . . . . . 10-38
Glass Replacement . . . . . . . . 10-38
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-39
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-39
Halogen Bulbs . . . . . . . . . . . . . . 10-39
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-39
Fog Lamps . . . . . . . . . . . . . . . . . 10-40
Taillamps (Chassis Cab Models) . . . . . . . . . . . . . . . . . . . 10-40
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . 10-41
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . 10-41
License Plate Lamp . . . . . . . . 10-42
Replacement Bulbs . . . . . . . . . 10-42
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-43
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-43
Page 384 of 542

Black plate (14,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
10-14 Vehicle Care
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. Always reset the
engine oil life to 100% after every oil
change. It will not reset itself. To
reset the engine oil life system:
1. Display the OIL LIFEREMAINING on the DIC. If the
vehicle does not have DIC
buttons, the vehicle must be in
P (Park) to access this display.
See Driver Information Center
(DIC) (Base Level) on page 5-30
or Driver Information Center
(DIC) (Uplevel) on page 5-32.
2. Press and hold
V, or the trip
odometer reset stem if the
vehicle does not have DIC
buttons, for several seconds.
The oil life will change to 100%. The oil life system can also be reset
as follows:
1. Turn the ignition to ON/RUN with
the engine off.
2. Fully press the accelerator pedal slowly three times within
five seconds.
3. Display the OIL LIFE REMAINING on the DIC. If the
display shows 100%, the system
is reset.
If the vehicle has a CHANGE
ENGINE OIL SOON message and it
comes back on when the vehicle is
started and/or the OIL LIFE
REMAINING is near 0%, the engine
oil life system has not been reset.
Repeat the procedure.
Automatic Transmission
Fluid
When to Check and Change
Automatic Transmission Fluid
It is usually not necessary to check
the transmission fluid level. The only
reason for fluid loss is a
transmission leak or overheated
transmission. If a small leak is
suspected, then use the following
checking procedures to check the
fluid level. However, if there is a
large leak, then it may be necessary
to have the vehicle towed to a
dealer service department and have
it repaired before driving the vehicle
further.
{Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the (Continued)
Page 397 of 542

Black plate (27,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-27
When to Check Power Steering
Fluid
It is not necessary to regularly
check power steering fluid unless
there is a leak suspected in the
system or an unusual noise is
heard. A fluid loss in this system
could indicate a problem. Have the
system inspected and repaired.
Wait for the power steering system
to cool, with the engine off, before
checking the fluid.
How to Check Power Steering
Fluid
To check the power steering fluid:
1. Turn the key off and let theengine compartment cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and wipe the dipstick with a clean rag.
4. Replace the cap and completely tighten it. 5. Remove the cap again and look
at the fluid level on the dipstick.
The level should be between the
ADD and FULL marks. If necessary,
add only enough fluid to bring the
level up to the hashed area between
the ADD and FULL marks.
What to Use
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants on page 11-12. Always
use the proper fluid.
{Caution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants on page 11-12.
Washer Fluid
What to Use
When windshield washer fluid needs
to be added, be sure to read the
manufacturer's instructions before
use. Use a fluid that has sufficient
protection against freezing in an
area where the temperature may fall
below freezing.
Adding Washer Fluid
The vehicle has a low washer fluid
message on the DIC that comes on
when the washer fluid is low. The
message is displayed for
15 seconds at the start of each
ignition cycle. When the WASHER
FLUID LOW ADD FLUID message
displays, washer fluid will need to
be added to the windshield washer
fluid reservoir.
Page 407 of 542

Black plate (37,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-37
Automatic Transmission
Shift Lock Control
Function Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Apply the parking brake. Be ready to apply the regular brake
immediately if the vehicle begins
to move.
3. With the engine off, turn the ignition on, but do not start the
engine. Without applying the
regular brake, try to move the
shift lever out of P (Park) with normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Ignition Transmission
Lock Check
While parked, and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
.For automatic transmission
vehicles, the ignition should turn
to LOCK/OFF only when the
shift lever is in P (Park).
.For manual transmission
vehicles, the ignition should turn
to LOCK/OFF only when you
press the key release button.
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.
Page 415 of 542

Black plate (45,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-45
Micro
J-Case Fuses Usage
1 Trailer Brake
2 Trailer Battery
J-Case Fuses Usage
3 Antilock Brake System Pump
4 Instrument Panel BEC 1
5 Spare
6 4WD Trec
7 Spare
8 Instrument Panel BEC 2
9 Spare
10 Rear Window Defogger
11 Starter
12 Cooling Fan 1 J-Case
Fuses Usage
13 Cooling Fan 2
Mini Fuses (2 Pin) Usage
14 Trailer Stop/Turn Lamps, Left
15 Trailer Park Lamps
16 Trailer Back-up Lamp
17 Trailer Stop/Turn Lamps, Right
Micro Fuses (2 Pin) Usage
18 Fuel Pump
19 Integrated Chassis Control Module
20 Electronic Suspension
Control Module Micro Fuses
(2 Pin) Usage
21 Fuel Pump Power Module
22 Upfitter Switch 1
23 Upfitter 2
24 Front Wiper
25 Antilock Brake System Valves
26 Upfitter SW 2
27 Upfitter SW 3
28 Parking Lamps, Right
29 Parking Lamps, Left
30 Upfitter 3
31 Upfitter SW 4
32 Upfitter 4
33 Back-up Lamps
34 Engine Control Module Ignition
Page 416 of 542

Black plate (46,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
10-46 Vehicle Care
Micro Fuses(2 Pin) Usage
35 Air Conditioning Compressor Clutch
36 Heated Mirrors
37 Upfitter 1
38 Center High-Mounted
Stoplamp
39 Miscellaneous Ignition
40 Transmission Ignition
41 Fuel Pump 2
42 Cooling Fan Clutch
43 Engine
44 Fuel Injectors A, Odd
45 Fuel Injectors B, Even
46 Oxygen Sensor B
47 Throttle Control Micro Fuses
(2 Pin) Usage
48 Horn
49 Fog Lamp
50 Oxygen Sensor A
51 Engine Control Module
52 Interior Heater
53 Spare
54 Aeroshutter
55 Front Washer
Micro Fuses (3 Pin) Usage
56 Air Conditioning Compressor/
Battery Regulated
Voltage Control
57 Air Conditioning Compressor
Module/
Battery Pack Micro Fuses
(3 Pin) Usage
58 Transmission Control Module/
Engine Control
Module
59 Headlamps
Micro
Relays Usage
60 Fuel Pump
61 Upfitter 2
62 Upfitter 3
63 Upfitter 4
64 Trailer Park Lamps
65 Run/Crank
66 Upfitter 1
67 Fuel Pump 2
68 Air Conditioning Control
69 Starter
Page 419 of 542

Black plate (49,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-49
Number Usage13 Discrete Logic Ignition Switch
14 Switch Backlighting
17 Body Control Module 1
19 Spare
20 Spare
22 Heater, Ventilation and Air Conditioning/
Auxiliary Heater,
Ventilation and Air
Conditioning Ignition
23 Instrument Cluster Ignition/Sensing
Diagnostic Module
Ignition
24 Spare
25 Data Link Connector/ Driver Seat Module Number Usage
26 Passive Entry Passive Start/Heater,
Ventilation and Air
Conditioning
27 Spare
28 Spare
29 Park Enable/ Electrically Adjustable
Pedals
30 SEO
31 Accessory/Run Crank
32 Heated Steering Wheel
33 Spare
34 Instrument Cluster
36 Spare
37 Spare
40 Left Doors
41 Driver Power Seat Number Usage
43 Left Front Heated/ Cooled Seat
44 Right Front Heated/ Cooled Seats
45 Spare
49 Accessory Power Outlet 1/Cigarette
Lighter
50 Run/Crank
Page 433 of 542

Black plate (63,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
Vehicle Care 10-63
The TPMS malfunction indicator is
combined with the low tire pressure
telltale. When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as
long as the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire
pressure as intended. TPMS
malfunctions may occur for a variety
of reasons, including the installation
of replacement or alternate tires or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
SeeTire Pressure Monitor
Operation on page 10-63. See
Radio Frequency Statement on
page 13-15.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmit the tire
pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the Tire and Loading
Information label. See
Vehicle Load
Limits on page 9-15.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. If the vehicle has DIC
buttons, tire pressure levels can be
viewed. For additional information
and details about the DIC operation
and displays, see Driver Information
Center (DIC) (Base Level) on
page 5-30 orDriver Information
Center (DIC) (Uplevel) on page 5-32
and Tire Messages on page 5-42.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
Page 434 of 542

Black plate (64,1)Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853506) - 2014 - CRC 3rd Edition - 8/29/13
10-64 Vehicle Care
air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. SeeVehicle Load
Limits on page 9-15, for an example
of the Tire and Loading Information
label and its location. Also see Tire
Pressure on page 10-61.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
on page 10-66, Tire Rotation on
page 10-67 andTires on
page 10-52.{Caution
Tire sealant materials are not all
the same. A non-approved tire
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
vehicle warranty. Always use only
the GM approved tire sealant
available through your dealer or
included in the vehicle.
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light
flashes for about one minute and
then stays on for the remainder of
the ignition cycle. A DIC warning
message also displays. The
malfunction light and DIC warning
message come on at each ignition
cycle until the problem is corrected.
Some of the conditions that can
cause these to come on are:
.One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and the DIC message
should go off after the road tire
is replaced and the sensor
matching process is performed
successfully. See "TPMS Sensor
Matching Process" later in this
section.