2011 CHEVROLET TAHOE coolant

Black plate (11,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Vehicle Care 10-11
Notice:Using coolant other than
a pre‐mixed DEX-COOL, available
at your dealer, may damage your
vehicle. Any repairs would not be
covered by your warranty. Always
use a pre‐mixed DEX-COOL
(silicate-free) coolant in your
vehicle.
{WARNING
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
If the DMCM coolant is empty, the
vehicle must be serviced by your
dealer and a special fill procedure
must be followed.
Notice: Attempting to fill the
DMCM cooling surge tank
yourself when the fluid level is
empty can damage your vehicle.
Your vehicle must be serviced.
1. Park the vehicle on a level surface and turn the vehicle off.
Remove the DMCM coolant
surge tank pressure cap when
the DMCM cooling system,
including the DMCM coolant
surge tank pressure cap and
DMCM cooling hoses, are no
longer hot. Turn the DMCM
coolant surge tank pressure cap
slowly counterclockwise (left)
about one full turn. Wait
30 seconds.2. Then keep turning the DMCMcoolant surge tank pressure cap
slowly, and remove it.
3. Add the pre‐mixed DEX‐COOL, available at your dealer, to the
DMCM coolant surge tank until
the level reaches the FULL
COLD mark.
4. Turn the ignition to ON/RUN without starting the engine. The
hybrid cooling pumps will run
and any trapped air will purge to
the surge tank.

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 (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 (2,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
11-2 Service and Maintenance
UsageFluid/Lubricant
Drive Motor/Generator Control
Module (DMCM) Cooling System Always use the pre-mixed 50/50 mixture of de‐ionized water and
DEX-COOL
®(silicate-free) coolant available at your dealer. See
Drive
Motor/Generator Control Module (DMCM) Cooling System on page 10‑9.

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