2011 CHEVROLET TAHOE fuse

Black plate (4,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
9-4 Driving and Operating
Engine Coolant Heater
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below−18°C (0°F). Vehicles
with an engine heater should be
plugged in at least four hours before
starting. An internal thermostat in
the plug-end of the cord may exist
which will prevent engine coolant
heater operation at temperatures
above −18°C (0°F).
Using the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The cord is
secured to a wiring harness
between the engine and the
Hybrid Auxiliary Underhood
Fuse Block with a clip. Carefully
remove the wire tie which
secures the electrical cord. Do
not cut the electrical cord. 3. Plug the cord into a normal,
grounded 110-volt AC outlet.
{WARNING
Plugging the cord into an
ungrounded outlet could cause an
electrical shock. Also, the wrong
kind of extension cord could
overheat and cause a fire. You
could be seriously injured. Plug
the cord into a properly grounded
three-prong 110-volt AC outlet.
If the cord will not reach, use a
heavy-duty three-prong extension
cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it
away from moving engine parts.
If you do not, it could be
damaged. The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Shifting Into Park
{WARNING
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. With four-wheel drive,
if the transfer case is in
N (Neutral), the vehicle will be
free to roll, even if the shift lever
is in P (Park). So, be sure the
transfer case is in a drive
(Continued)

Black plate (1,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Vehicle Care 10-1
Vehicle Care
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-2
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-4
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . 10-6
Drive Motor/Generator Control Module (DMCM) Coolant
Surge Tank
Pressure Cap . . . . . . . . . . . . . . 10-9
Drive Motor/Generator Control Module (DMCM) Cooling
System . . . . . . . . . . . . . . . . . . . . . 10-9
Power Steering Fluid . . . . . . . 10-12
Battery . . . . . . . . . . . . . . . . . . . . . 10-12
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-13
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . 10-13
Replacement Bulbs . . . . . . . . . 10-14
Electrical System
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . 10-14
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-15
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-15
Wheels and Tires
Tire Pressure . . . . . . . . . . . . . . . 10-17
Tire Pressure MonitorOperation . . . . . . . . . . . . . . . . . 10-18
Tire Rotation . . . . . . . . . . . . . . . 10-21
Tire Chains . . . . . . . . . . . . . . . . . 10-22 If a Tire Goes Flat . . . . . . . . . . 10-22
Tire Sealant and
Compressor Kit . . . . . . . . . . . 10-24
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . 10-31
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-32
Towing
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . 10-36
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-40

Black plate (2,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
10-2 Vehicle Care
Vehicle Checks
Doing Your Own
Service Work
{WARNING
Never try to do your own service
on hybrid components. You can
be injured and the vehicle can be
damaged if you try to do your own
service work. Service and repair
of these hybrid components
should only be performed by a
trained service technician with the
proper knowledge and tools.
{WARNING
You can be injured and the
vehicle could be damaged if you
try to do service work on a vehicle
without knowing enough about it.
.Be sure you have sufficient
knowledge, experience, the
proper replacement parts,
and tools before attempting
any vehicle
maintenance task.
.Be sure to use the proper
nuts, bolts, and other
fasteners. English and metric
fasteners can be easily
confused. If the wrong
fasteners are used, parts can
later break or fall off. You
could be hurt.If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see
“Service
Publications Ordering Information”
in the owner manual.
This vehicle has an airbag system.
Before attempting to do your own
service work, see “Airbag System
Check” in the owner manual.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
“Maintenance Records” in the owner
manual.

Black plate (5,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Vehicle Care 10-5
A. See“Engine Air Cleaner/Filter”
in the owner manual.
B. Drive Motor/Generator Control Module (DMCM). See Drive
Motor/Generator Control
Module (DMCM) Cooling
System on page 10‑9.
C. Engine Oil Dipstick (Out of View). See “Engine Oil” in the
owner manual.
D. Automatic Transmission Fluid Dipstick. See Automatic
Transmission Fluid on
page 10‑6. E. Brake Fluid Reservoir. See
“Brakes” in the owner manual.
F. See “Engine Compartment Fuse
Block” in the owner manual.
G. Windshield Washer Fluid Reservoir. See “Washer Fluid”
in the owner manual.
H. Hybrid Auxiliary Fuse Block (Out of View). See Engine
Compartment Fuse Block on
page 10‑15. I. DMCM Coolant Surge Tank
Pressure Cap. See Drive Motor/
Generator Control Module
(DMCM) Coolant Surge Tank
Pressure Cap on page 10‑9.
J. Coolant Surge Tank Pressure Cap. See “Engine Coolant” in
the owner manual.
K. Engine Oil Fill Cap (Out of View). See “Engine Oil” in the
owner manual.

Black plate (15,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Vehicle Care 10-15
Fuses and Circuit
Breakers
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.
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 do not have a spare fuse,
you can borrow one that has the
same amperage. Just pick some
feature of the 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.
The vehicle also has a special fuse
in the battery box for the 300-volt
batteries. If this fuse has failed and
needs to be replaced, the vehicle
will be disabled and you will need to
have the vehicle repaired by your
dealer. Do not attempt to
self-service this fuse.
Engine Compartment
Fuse Block
Hybrid Auxiliary Engine
Compartment Fuse Block
The hybrid auxiliary engine
compartment fuse block is located
in the engine compartment near the
front of the vehicle. Lift the cover for
access to the fuse/relay block. See
Engine Compartment Overview on
page 10‑4
for more information on
its location. For more information on
the main underhood fuse block, see
“Engine Compartment Fuse Block”
in the owner manual.

Black plate (16,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
10-16 Vehicle Care
FusesUsage
1 ACPO (SUV Only)
2 BECM FAN
3 ACCM
4 CAB HTR PMP Fuses
Usage
5 EMPTY
6 COOL PUMP
7 EPS
8 Drive Motor/Generator
Control Module 1 Fuses
Usage
9 Drive Motor/Generator
Control Module 2
10 BECM
J‐Case Usage
FAN 1 Cooling Fan 1
TRANS PUMP Auxiliary
Transmission Fluid Pump
FAN 2 Cooling Fan 2
CAB
HTR PMP Cab Heater Pump
Relays Usage
CAB
HTR
PUMP Cabin Heater Pump
COOL
PUMP Coolant Pump
FAN LOW Cooling Fan Low
Speed Relay

Black plate (1,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
INDEX i-1
A
AdjustmentsLumbar, Front Seats . . . . . . . . . . . 3-1
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . 5-10
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-40
Automatic Transmission . . . . . . . . 9-7 Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Manual Mode . . . . . . . . . . . . . . . . . . 9-9
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-12Jump Starting . . . . . . . . . . . . . . . 10-32
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-12
Brakes Regenerative Braking . . . . . . . . . 9-15
System Messages . . . . . . . . . . . . 5-12
Bulb Replacement . . . . . . . . . . . . 10-14 Headlamps . . . . . . . . . . . . . . . . . 10-13
Taillamps, Turn Signal,Stoplamps, and
Back-Up Lamps . . . . . . . . . . . 10-13
C
Canadian Vehicle Owners . . . . . . . . . ii
Capacities and
Specifications . . . . . . . . . . . . . . . . 12-2
Chains, Tire . . . . . . . . . . . . . . . . . . 10-22
Charging System Light . . . . . . . . . 5-8
Circuit Breakers . . . . . . . . . . . . . . 10-15
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-40
Climate Control Systems . . . . . . . 8-1 Air Conditioning . . . . . . . . . . . . . . . 8-1
Heating . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Cluster, IP . . . . . . . . . . . . . . . . . . . . . . 5-3
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . . . . . . . . . 10-24
Coolant
Engine Temperature Gauge . . . 5-8
Coolant Surge Tank Pressure Cap, (DMCM) . . . . . . 10-9
Cooling System, (DMCM) . . . . . . 10-9
D
Door
Ajar Messages . . . . . . . . . . . . . . . 5-13
Drive Motor/Generator Control Module (DMCM)
Coolant Surge Tank
Pressure Cap . . . . . . . . . . . . . . . . 10-9
Drive Motor/Generator Control Module (DMCM)
Cooling System . . . . . . . . . . . . . . 10-9
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . 5-11
E
Electrical SystemEngine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-15
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-15
Engine Compartment Overview . . . . . . . 10-4
Coolant Heater . . . . . . . . . . . . . . . . 9-4
Coolant Temperature Gauge . . . 5-8
Drive Belt Routing . . . . . . . . . . . . 12-3

Black plate (2,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
i-2 INDEX
Engine (cont.)Oil Pressure Gauge . . . . . . . . . . . 5-6
Pressure Light . . . . . . . . . . . . . . . . 5-11
Running While Parked . . . . . . . . . 9-6
Engine Oil Messages . . . . . . . . . . . . . . . . . . . . 5-13
Equipment, Towing . . . . . . . . . . . . 9-17
F
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-22
Fluid Automatic Transmission . . . . . . 10-6
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 9-10
Power Steering . . . . . . . . . . . . . 10-12
Four-Wheel Drive . . . . . . . . . . . . . . 9-10
Fuel
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Fuel Economy Gauge . . . . . . . . . . 5-6
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-15
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-15
G
GaugesEngine CoolantTemperature . . . . . . . . . . . . . . . . . 5-8
Engine Oil Pressure . . . . . . . . . . . 5-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Fuel Economy . . . . . . . . . . . . . . . . . 5-6
Tachometer . . . . . . . . . . . . . . . . . . . . 5-4
General Information Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-16
H
HeadlampsBulb Replacement . . . . . . . . . . 10-13
Heater Engine Coolant . . . . . . . . . . . . . . . . 9-4
Heating and Air Conditioning . . . 8-1
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-14
I
Instrument Cluster . . . . . . . . . . . . . . 5-3
Introduction . . . . . . . . . . . . . . . . . . . ii, 7-1
J
Jump Starting . . . . . . . . . . . . . . . . . 10-32
L
LightStabiliTrak®OFF . . . . . . . . . . . . . 5-10
Lights
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-10
Charging System . . . . . . . . . . . . . . 5-8
Engine Oil Pressure . . . . . . . . . . 5-11
Lumbar Adjustment . . . . . . . . . . . . . 3-1 Front Seats . . . . . . . . . . . . . . . . . . . . 3-1