2011 CHEVROLET TAHOE wiring

Black plate (2,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
5-2 Instruments and Controls
Controls
Power Outlets
Power Outlet Alternating
Current
The vehicle may have a power
outlet that can be used to plug in
electrical equipment that uses a
maximum limit of 150 watts.
The power outlet is located in the
rear cargo area on the driver side.An indicator light on the outlet
comes on when in use. The ignition
must be in ON/RUN and equipment
requiring less than 150 watts is
plugged into the outlet, and no
system fault is detected.
If equipment is connected using
more than 150 watts, or a system
fault is detected, a protection circuit
shuts off the power supply and the
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the Retained
Accessory Power (RAP) off and
then back on. The power restarts
when equipment using 150 watts or
less is plugged into the outlet and a
system fault is not detected.
The power outlet is not designed for
and may not work properly if the
following are plugged in:
.Equipment with high initial
peak wattage such as:
compressor-driven refrigerators
and electric power tools.
.Other equipment requiring
an extremely stable power
supply such as:
microcomputer-controlled
electric blankets, touch sensor
lamps, etc.
See High Voltage Devices and
Wiring on page 10‑14.

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 (14,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
10-14 Vehicle Care
3. Pull the taillamp assemblyrearward disengaging the two
outer pins on the taillamp
assembly from the vehicle.
4. Turn the bulb socket counterclockwise to remove it
from the taillamp assembly.
5. Pull the old bulb straight out from the bulb socket.
6. Press a new bulb into the bulb socket and insert it into the
taillamp assembly. Turn the bulb
socket clockwise into the
taillamp assembly until it clicks.
7. Reinstall the taillamp assembly. When reinstalling, make sure to
line up the pins on the taillamp
assembly with the vehicle. If this
is not done the taillamp
assembly cannot be correctly
installed.Replacement Bulbs
Exterior Lamp Bulb
Number
Back-up Lamp and
Rear Turn
Signal Lamp 3156
Sidemarker Lamp 194
For replacement bulbs not listed
here, contact your dealer.
Electrical System
High Voltage Devices and
Wiring
{WARNING
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage systems
in your vehicle can only be
serviced by technicians with
special training.
High voltage devices are
identified by labels. Do not
remove, open, take apart,
or modify these devices. High
voltage cable or wiring has
orange covering. Do not probe,
tamper with, cut, or modify high
voltage cable or wiring.

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 (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

Black plate (4,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
i-4 INDEX
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 5-4
TaillampsBulb Replacement . . . . . . . . . . 10-13
Tires Chains . . . . . . . . . . . . . . . . . . . . . . 10-22
If a Tire Goes Flat . . . . . . . . . . 10-22
Inflation Monitor System . . . . 10-18
Rotation . . . . . . . . . . . . . . . . . . . . 10-21
Sealant andCompressor Kit . . . . . . . . . . . 10-24
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . 10-31
Towing Equipment . . . . . . . . . . . . . . . . . . . . 9-17
General Information . . . . . . . . . . 9-16
Recreational Vehicle . . . . . . . . 10-36
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-16
Trailer Towing . . . . . . . . . . . . . . . . . 9-16 Transfer Case . . . . . . . . . . . . . . . . . 9-10
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . . 9-7
Fluid, Automatic . . . . . . . . . . . . . . 10-6
Messages . . . . . . . . . . . . . . . . . . . . 5-13
Turn Signal Bulb Replacement . . . . . . . . . . 10-13
U
Using this Supplement . . . . . . . . . . . . iii
V
Vehicle
Canadian Owners . . . . . . . . . . . . . . . ii
Messages . . . . . . . . . . . . . . . . . . . . 5-12
Starting . . . . . . . . . . . . . . . . . . . . . . . . 9-2 Vehicle Care
Storing the Tire Sealant
and Compressor Kit . . . . . . . 10-31
Tire Pressure . . . . . . . . . . . . . . . 10-17
Voltage Devices, and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-14
W
Wiring, High VoltageDevices . . . . . . . . . . . . . . . . . . . . . 10-14