2011 CHEVROLET TAHOE power steering

Black plate (1,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
In Brief 1-1
In Brief
Initial Drive Information
Transmission . . . . . . . . . . . . . . . . . . 1-1
Four-Wheel Drive . . . . . . . . . . . . . 1-1
Hybrid Features
High Voltage SafetyInformation . . . . . . . . . . . . . . . . . . 1-2
Fuel Economy Gauge . . . . . . . . . 1-3
Automatic Engine Start/Stop Feature . . . . . . . . . . . . . . . . . . . . . . 1-3
Regenerative Braking . . . . . . . . . 1-4
Battery . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Service . . . . . . . . . . . . . . . . . . . . . . . 1-4
Performance and Maintenance
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . 1-5
Initial Drive
Information
Transmission
Range Selection Mode
The Range Selection Mode switch
is located on the shift lever. To
enable the Range Selection feature,
move the column shift lever to the
M (Manual) position. The current
range will appear next to the M. This
is the highest attainable range with
all lower gears accessible. As an example, when 3 (Third) gear is
selected, 1 (First) through 3 (Third)
gears are available.
Press the plus/minus buttons,
located on the steering column shift
lever, to select the desired range of
gears for current driving conditions.
See Automatic Transmission
Operation in the owner manual.
Cruise control can be used while the
vehicle is in Range Selection Mode.
See
Manual Mode on page 9‑9.
Four-Wheel Drive
If the vehicle has four-wheel drive,
you can send the engine's driving
power to all four wheels for extra
traction. Read the following before
using four-wheel drive.

Black plate (13,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Instruments and Controls 5-13
System Warning Light,”and“ABS
Brake System Warning Light” in the
owner manual.
This message may also come on
when you are towing a trailer. See
“Trailer Brakes” underTrailer Towing
on page 9‑16 for more information.
Door Ajar Messages
HOOD OPEN
If the hood is not fully closed or
there is a problem with the hood
switch, this message will be
displayed. Close the hood to clear
the message. If the HOOD OPEN
message continues to be displayed
after verifying the hood is closed,
you should have the hood switch
serviced. Failure to service the hood
switch properly can result in an Auto
Start condition.
Auto Stops will be disabled when
this message is displayed. If the
vehicle is in auto stop mode when
this message appears, the engine
will instantly start.
Engine Oil Messages
OIL PRESSURE LOW STOP
ENGINE
If engine oil pressure is low, this
message will be displayed on the
DIC. Stop the vehicle as soon as
safely possible and do not operate it
until the cause of the low oil
pressure has been corrected. Check
your oil level as soon as possible
and have your vehicle serviced. See
“Engine Oil”in the owner manual.
Service Vehicle Messages
SERVICE HYBRID SYSTEM
If this message is displayed on the
DIC, the vehicle may continue to
operate, but you need to have it
serviced as soon as possible.
SERVICE POWER STEERING
This message displays if a problem
has been detected with the electric
power steering. Have your vehicle
serviced by your dealer immediately.
Transmission Messages
SERVICE 4 WHEEL DRIVE
This message may display if a
problem occurs with the
four-wheel-drive system. If this
message appears, stop as soon as
possible and turn off the vehicle.
Make sure the key is in the LOCK/
OFF position for at least one minute
and then restart the vehicle and
check for the message on the DIC
display. If the message is still
displayed or appears again
when you begin driving, the
four-wheel-drive system needs
service. See your dealer.

Black plate (1,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Driving and Operating 9-1
Driving and
Operating
Driving Information
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-1
Starting and Operating
Starting the Vehicle . . . . . . . . . . . 9-2
Engine Coolant Heater . . . . . . . . 9-4
Shifting Into Park . . . . . . . . . . . . . 9-4
Engine Exhaust
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 9-6
Automatic Transmission
Automatic Transmission . . . . . . . 9-7
Manual Mode . . . . . . . . . . . . . . . . . 9-9
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . 9-10
Brakes
Regenerative Braking . . . . . . . . 9-15
Towing
General TowingInformation . . . . . . . . . . . . . . . . . 9-16
Trailer Towing . . . . . . . . . . . . . . . . 9-16
Towing Equipment . . . . . . . . . . . 9-17
Driving Information
Steering
This vehicle has On-Demand
Electric-Assist Power Steering
instead of conventional full-time
hydraulic power steering. It uses
electricity supplied by the same
battery which is re-charged by the
regenerative braking system.
Because the system is On-Demand
Electric-Assist, energy is used only
when the steering wheel is turned,
or when the steering gear is used to
help isolate the forces of rough
roads. This system does not use
power steering fluid, making it
maintenance-free.

Black plate (10,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
9-10 Driving and Operating
When you move the shift lever into
M, the transmission will default to
M4. In this gear range, effective
engine braking occurs at speeds
above 72 km/h (45 mph).
Pushing the minus (−) button on the
shift lever reduces the gear range.
In the M3 gear range, effective
engine braking occurs at speeds
above 56 km/h (35 mph).
In the M2 gear range, effective
engine braking occurs at speeds
above 40 km/h (25 mph).
In the M1 gear range, effective
engine braking occurs at speeds
above 16 km/h (10 mph).
When operating in M (Manual
Mode), Auto Stop is disabled. For
better vehicle efficiency, operate the
vehicle in D (Drive) not
M (Manual Mode).
Cruise control can be used while
using the Range Selection Mode.Drive Systems
Four-Wheel Drive
If the vehicle has four-wheel drive,
you can send the engine's driving
power to all four wheels for extra
traction. Read the following before
using four-wheel drive.
Notice:Driving on clean, dry
pavement in Four-Wheel Drive
High or Four-Wheel Drive Low for
an extended period of time may
cause premature wear on the
vehicle's powertrain. Do not drive
on clean, dry pavement in
Four-Wheel Drive High or
Four-Wheel Drive Low for
extended periods of time. While driving on clean dry pavement
and during tight turns, you may
experience a vibration in the
steering system.
The vehicle has StabiliTrak. Shifting
into Four-Wheel Drive Low will turn
Traction Control and StabiliTrak off.
See
“StabiliTrak System” in the
owner manual.
Front Axle
The front axle engages and
disengages automatically when you
shift the transfer case. Some delay
for the axle to engage or disengage
is normal.

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 (12,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
10-12 Vehicle Care
5. Add the pre‐mixed DEX‐COOL,available at your dealer, until the
coolant level is maintained at the
FULL COLD mark. This should
take no longer than two minutes
of hybrid cooling pump
operation.
If the level cannot be kept at the
FULL COLD level, the vehicle
may need service. See your
dealer.
6. Then replace the DMCM coolant
surge tank pressure cap. Be
sure the pressure cap is
hand-tight and fully seated. Notice:
Using tap water, cooling
system sealers or conditioners in
an attempt to stop coolant leaks
can damage the DMCM and
engine cooling systems. Never
use tap water, cooling system
sealers or conditioners in your
cooling system.
Power Steering Fluid
The vehicle has electric power
steering and does not use power
steering fluid.
Battery
This vehicle has a standard 12‐volt
battery and a high voltage hybrid
battery.
Refer to the replacement number on
the original battery label when a
new standard 12‐volt battery is
needed. Only a trained service technician
with the proper knowledge and tools
should inspect, test, or replace the
hybrid battery. See your dealer if the
hybrid battery needs service. The
dealer has information on how to
recycle the hybrid battery. There
is also information available at
http://www.recyclemybattery.com.
If an airbag inflates or the vehicle
has been in a crash, the vehicle's
sensing system might command the
automatic hybrid battery disconnect
to open. See
Replacing Airbag
System Parts After a Crash on
page 3‑2 for more information.
{DANGER
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.

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 (3,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
INDEX i-3
M
Maintenance ScheduleRecommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 11-1
Scheduled Maintenance . . . . . . 11-1
Transfer Case . . . . . . . . . . . . . . . . 9-10
Manual Mode . . . . . . . . . . . . . . . . . . . 9-9
Messages
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-12
Brake System . . . . . . . . . . . . . . . . 5-12
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-13
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-13
Service Vehicle . . . . . . . . . . . . . . . 5-13
Transmission . . . . . . . . . . . . . . . . . 5-13
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-12
O
Oil
Engine Oil Pressure Gauge . . . . 5-6
Messages . . . . . . . . . . . . . . . . . . . . 5-13
Pressure Light . . . . . . . . . . . . . . . . 5-11
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . 9-4
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Seat Adjustment . . . . . . . . . . . . . . . 3-1
Steering Fluid . . . . . . . . . . . . . . . 10-12
R
Reclining Seatbacks . . . . . . . . . . . . 3-2
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . 11-1
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . . . 10-36
Regenerative Braking . . . . . . . . . . 9-15
Replacement Bulbs . . . . . . . . . . . 10-14
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Replacing Airbag System . . . . . . . 3-2
Rotation, Tires . . . . . . . . . . . . . . . . 10-21
Routing, Engine Drive Belt . . . . . 12-3
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 9-6
S
Scheduled Maintenance . . . . . . . 11-1
Sealant Kit, Tire . . . . . . . . . . . . . . 10-24
Seats
Lumbar Adjustment, Front . . . . . 3-1
Power Adjustment, Front . . . . . . 3-1
Reclining Seatbacks . . . . . . . . . . . 3-2
Service Doing Your Own Work . . . . . . . . 10-2
Vehicle Messages . . . . . . . . . . . . 5-13
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . . 9-4
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
StabiliTrak
®OFF Light . . . . . . . . . 5-10
Starting the Vehicle . . . . . . . . . . . . . 9-2
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Fluid, Power . . . . . . . . . . . . . . . . 10-12
Stoplamps and Back-Up Lamps Bulb Replacement . . . . . . . . . . 10-13
Storing the Tire Sealant and Compressor Kit . . . . . . . . . 10-31
Supplement Using . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii