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1. Positive (+) Terminal. SeeJump Starting - North
America 0434.
2. Battery - North America 0382.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System 0371.
4. Engine Air Cleaner/Filter 0370.
5. Automatic Transmission Dipstick (If Equipped). See
“How to Check Automatic
Transmission Fluid” under
Automatic Transmission Fluid
(6 Speed Transmission) 0367
or Automatic Transmission
Fluid (8 Speed
Transmission) 0370.
6. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil 0363.
7. Engine Oil Fill Cap. See “When
to Add Engine Oil” under
Engine Oil 0363.
8. Engine Cooling Fan (Out of View). See Cooling
System 0371. 9. Remote Negative (–) Location.
See Jump Starting - North
America 0434.
10. Power Steering Fluid Reservoir. See Power Steering
Fluid (1500 Series) 0378 or
Power Steering Fluid (2500/
3500 Series) 0378.
11. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer
Fluid 0379.
12. Brake Fluid Reservoir. See Brake Fluid 0380.
13. Auxiliary Battery (If Equipped). SeeBattery - North
America 0382.
14. Engine Compartment Fuse
Block 0392.
If the vehicle has a diesel engine
and/or an Allison Transmission, see
the Duramax diesel supplement.
For an eAssist vehicle, see the
Silverado/Sierra supplement.Engine Oil
For diesel engine vehicles, see
“Engine Oil” in the Duramax diesel
supplement.
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
. Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0366.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
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{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the
paint finish can be damaged.
Immediately wash off any painted
surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove
the cap and do not add fluid.
Refer to the replacement number
shown on the original battery label
when a new battery is needed. See
Engine Compartment Overview
0358 for battery location.
{Warning
WARNING: Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
the State of California to cause
cancer. WASH HANDS AFTER
HANDLING.
See California Proposition
65 Warning 0355.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. See Jump Starting -
North America 0434 for tips on
working around a battery without
getting hurt. Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative (−) cable from the
battery or use a battery trickle
charger.
Four-Wheel Drive
Transfer Case
When to Check Lubricant
Refer to
Maintenance Schedule
0 454 to determine when to check
the lubricant.
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FusesUsage
1 Trailer brake Fuses
Usage
2 Trailer battery
3 ABS pump Fuses
Usage
4 Instrument panel BEC 1
5 MSB passenger
6 4WD transfer case electronic control
7 Electronic park brake
8 Instrument panel BEC 2
9 MSB driver
10 Rear window defogger
11 Starter
12 Cooling fan 1
13 Cooling fan 2
14 Left trailer stop/ Turn lamps
15 Trailer parking lamps
16 Trailer reverse lamps
17 Right trailer stop/ Turn lamps
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FusesUsage
18 Fuel pump
19 Integrated chassis control module
20 Electronic suspension control
module
21 Fuel pump power module
22 Upfitter 1
23 Upfitter 2
24 Front wiper
25 ABS Valves
26 Upfitter 2
27 Upfitter 3
28 Right parking lamps
29 Left parking lamps
30 Upfitter 3
31 Upfitter 4
32 Upfitter 4
33 Reverse lamps Fuses
Usage
34 Engine control module/Ignition
35 A/C clutch
36 Heated mirrors
37 Upfitter 1
38 Center high-mount 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 O2 Sensor B
47 Throttle control
48 Horn
49 Fog lamps Fuses
Usage
50 O2 Sensor A
51 Engine control module
52 Interior heater
53 Accessory power module/TPM pump
54 Front washer
55 A/C/Battery regulated voltage
control
56 A/C module/ Battery pack
57 Transmission control module/
Engine control
module
58 Headlamps
59 Fuel pump
Relays Usage
60 Upfitter 2
61 Upfitter 3
62 Upfitter 4
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The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Accessory power outlet 3 Fuses Usage
2 Accessory power outlet 4
7 Body control module 4
8 Body control module 8
9 Rear seat entertainment
10 Cargo lamp
15 Steering wheel controls
18 Radio
19 –
20 Sunroof
23 Airbag/Info
26 Export/Power take off/ SEO battery 1
27 Obstacle detection/ USB ports
28 Body control module 2
32 SEO battery 2
35 AC inverter
36 Amplifier
37 –
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The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Number Usage
1 Accessory power outlet 2 Number Usage
2 SEO/Retained accessory power
3 Universal garage door opener/Interior
rearview mirror
6 Body control module 3
7 Body control module 5
8 Driver window switch/ Mirror switch
9 –
10 Accessory power outlet/Retained
accessory power
11 Accessory power outlet battery
12 Accessory power outlet 1/Cigarette
lighter
13 Discrete logic ignition switch
14 Switch backlighting
17 Body control module 1
19 –
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112 km/h (70 mph), or 88 km/h
(55 mph) when pulling a trailer, at
the proper inflation pressure. Repair
and replace the road tire as soon as
it is convenient, and stow the spare
tire for future use.
Caution
If the vehicle has four-wheel drive
and a different size spare tire is
installed, do not drive in
four-wheel drive until the flat tire
is repaired and/or replaced. The
vehicle could be damaged and
the repairs would not be covered
by the warranty. Never use
four-wheel drive when a different
size spare tire is installed on the
vehicle.
The vehicle may have a different
size spare tire than the road tires
originally installed on the vehicle.
This spare tire was developed for
use on this vehicle, so it is all right
to drive on it. If the vehicle has four-wheel drive and a different size
spare tire is installed, drive only in
two-wheel drive.
After installing the spare tire on the
vehicle, stop as soon as possible
and check that the spare tire is
correctly inflated.
Have the damaged or flat road tire
repaired or replaced and installed
back onto the vehicle as soon as
possible so the spare tire will be
available in case it is needed again.
Do not mix tires and wheels of
different sizes, because they will not
fit. Keep your spare tire and its
wheel together. If the vehicle has a
spare tire that does not match the
original road tires and wheels in size
and type, do not include the spare in
the tire rotation.
Jump Starting
Jump Starting - North
America
For an eAssist vehicle, see the
Silverado/Sierra supplement.
For more information about the
vehicle battery, see
Battery - North
America 0382.
If the vehicle's battery (or batteries)
has run down, you may want to use
another vehicle and some jumper
cables to start your vehicle. Be sure
to use the following steps to do it
safely.
{Warning
WARNING: Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
(Continued)
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Warning (Continued)
the State of California to cause
cancer.WASH HANDS AFTER
HANDLING.
See California Proposition
65 Warning 0355.
{Warning
Batteries can hurt you. They can
be dangerous because:
. They contain acid that can
burn you.
. They contain gas that can
explode or ignite.
. They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these
things can hurt you.
Caution
Ignoring these steps could result
in costly damage to the vehicle
that would not be covered by the
vehicle warranty. Trying to start
the vehicle by pushing or pulling it
will not work, and it could damage
the vehicle.
1. Check the other vehicle. It must have a 12-volt battery
with a negative ground system.
Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. If you have a vehicle with a diesel engine with two
batteries, you should know
before you begin that,
especially in cold weather, you may not be able to get enough
power from a single battery in
another vehicle to start your
diesel engine. If your vehicle
has more than one battery,
using the battery that is closer
to the starter will reduce
electrical resistance. This is
located on the passenger side,
in the rear of the engine
compartment.
3. Get the vehicles close enough so the jumper cables can
reach, but be sure the vehicles
are not touching each other.
If they are, it could cause an
unwanted ground connection.
You would not be able to start
your vehicle, and the bad
grounding could damage the
electrical systems.
To avoid the possibility of the
vehicles rolling, set the parking
brake firmly on both vehicles
involved in the jump start
procedure. Put the automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking
brake. If you have a