cooling CADILLAC ESCALADE HYBRID 2012 Owners Manual

Black plate (1,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-1
Vehicle Care Vehicle Checks Doing Your Own
Service Work . . . . . . . . . . . . . . . 10-2
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . 10-4
Automatic Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . . 10-5
Drive Motor/Generator Control
Module (DMCM) Coolant
Surge Tank
Pressure Cap . . . . . . . . . . . . . . 10-8
Drive Motor/Generator Control
Module (DMCM) Cooling
System . . . . . . . . . . . . . . . . . . . . . 10-8
Battery . . . . . . . . . . . . . . . . . . . . . . 10-11
Four-Wheel Drive . . . . . . . . . . . 10-12 Electrical System High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . 10-13
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-13
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-14
Wheels and Tires Tire Pressure . . . . . . . . . . . . . . . 10-16
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . 10-17
Tire Rotation . . . . . . . . . . . . . . . 10-20
If a Tire Goes Flat . . . . . . . . . . 10-20
Tire Sealant and
Compressor Kit . . . . . . . . . . . 10-22
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . 10-29 Jump Starting Jump Starting . . . . . . . . . . . . . . 10-29
Towing Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . 10-33
Appearance Care Exterior Care . . . . . . . . . . . . . . . 10-37

Black plate (5,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-5A. 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 ‑ 8 .
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 ‑ 5 .
E. Brake Fluid Reservoir. See
“ Brakes ” in the owner manual.
F. See “ Engine Compartment Fuse
Block ” under Electrical System
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 ‑ 14 . I. DMCM Coolant Surge Tank
Pressure Cap. See Drive Motor/
Generator Control Module
(DMCM) Coolant Surge Tank
Pressure Cap on page 10 ‑ 8 .
J. Engine 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.
Automatic Transmission
Fluid When to Check and Change
Automatic Transmission Fluid It is usually not necessary to
check the transmission fluid level.
The only reason for fluid loss is a
transmission leak or overheating
the transmission. If a small leak is
suspected, then use the following checking procedures to check the
fluid level. However, if there is a
large leak, then it may be necessary
to have the vehicle towed to a
dealer and have it repaired before
driving the vehicle further.
Notice: Use of the incorrect
automatic transmission fluid
may damage the vehicle, and the
damages may not be covered by
the vehicle warranty. Always use
the automatic transmission fluid
listed in Recommended Fluids
and Lubricants on page 11 ‑ 2 .
Change the fluid and filter at the
scheduled maintenance intervals.
See “ Scheduled Maintenance ” in
the owner manual. Be sure to use
the transmission fluid listed in
Recommended Fluids and
Lubricants on page 11 ‑ 2 .

Black plate (8,1)Cadillac Escalade Hybrid - 2012
10-8 Vehicle Care
5. Safe operating level is within the
HOT cross hatch band on the
dipstick. If the fluid level is not
within the HOT band, and the
transmission temperature is
between 60°C and 75°C
(140°F and 167°F), add or
drain fluid as necessary to bring
the level into the HOT band.
If the fluid level is low, add only
enough fluid to bring the level
into the HOT band. It does not
take much fluid, generally less
than 0.5 Liter (1 Pint). Do not
overfill.
6. If the fluid level is in the
acceptable range, push the
dipstick back in all the way. Consistency of Readings Always check the fluid level at least
twice using the procedure described
previously. Consistency (repeatable
readings) is important to maintaining
proper fluid level. If readings are still
inconsistent, contact your dealer.
Drive Motor/Generator
Control Module (DMCM)
Coolant Surge Tank
Pressure Cap
See Engine Compartment Overview
on page 10 ‑ 4 for more information
on location.
The Drive Motor/Generator Control
Module (DMCM) coolant surge tank
pressure cap must be fully installed
on the hybrid coolant surge tank. Notice: If the pressure cap is
not tightly installed, coolant
loss and possible damage to the
Drive Motor/Generator Control
Module (DMCM) may occur. Be
sure the cap is properly and
tightly secured.
Drive Motor/Generator
Control Module (DMCM)
Cooling System In addition to the regular cooling
system, the vehicle also has a
cooling system for the DMCM
system. This system is serviced
differently than the vehicle's main
cooling system. The DMCM cooling
system includes the DMCM coolant
surge tank, DMCM surge tank
pressure cap, DMCM cooling
pumps, hybrid cooling radiator
and the Drive Motor/Generator
Control Module (DMCM). The
DMCM cooling system uses a
50/50 pre-mixed DEX-COOL ®
coolant and deionized water
available at your dealer. See

Black plate (9,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-9“ Engine Coolant ” and “ Cooling
System ” in the owner manual for
more information.
When it is safe to lift the hood:
A. Drive Motor/Generator Control
Module (DMCM)
B. Engine Coolant Surge Tank
Pressure Cap
C. DMCM Coolant Surge Tank/
Engine Coolant Surge Tank D. DMCM Cooling Hoses (Out
of View)
E. DMCM Coolant Surge Tank
Pressure Cap
If the coolant inside the DMCM
coolant surge tank is boiling, do not
do anything else until it cools down.
The coolant level should be at
or above the FULL COLD mark
with the vehicle parked on a level surface. If it is not, there might be
a leak at the DMCM cooler core,
DMCM pressure cap, DMCM cooler
hoses, DMCM cooling pump or
somewhere else in the DMCM
cooling system.
Notice: Running the engine when
there is a leak in the hybrid
cooling system can cause the
hybrid cooling system to lose
all coolant and can damage the
system. Get any leak fixed before
you drive the vehicle or run the
engine.

Black plate (10,1)Cadillac Escalade Hybrid - 2012
10-10 Vehicle Care How to Add Coolant to the
DMCM Coolant Surge Tank If no problem has been found yet,
check to see if coolant is visible in
the DMCM coolant surge tank.
If coolant is visible, add pre ‐ mixed
DEX-COOL coolant, available at
your dealer, at the DMCM coolant
surge tank, but be sure the DMCM
cooling system, including the DMCM
coolant surge tank pressure cap, is
cool before you do it. Use the
procedure following.
{ WARNING
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are
under pressure, and if you turn
the coolant surge tank pressure
cap — even a little — they can
come out at high speed. Never
turn the cap when the cooling
system, including the coolant
surge tank pressure cap, is hot.
(Continued) WARNING (Continued) Wait for the cooling system and
coolant surge tank pressure cap
to cool if you ever have to turn
the pressure cap.
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

Black plate (11,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-11surge 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 DMCM
coolant 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.
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.
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.

Black plate (15,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-15Fuses Usage
8 Drive Motor/Generator
Control Module 1
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 Relays Usage
CAB
HTR
PUMP Cabin Heater Pump
COOL
PUMP Coolant Pump
FAN LO Cooling Fan Low
Speed Relay
FAN
MID 1 Cooling Fan Mid 1 Relays Usage
FAN HI Cooling Fan High
Speed Relay
FAN
MID 2 Cooling Fan Mid 2
FAN
CNTRL Cooling Fan Control

Black plate (2,1)Cadillac Escalade Hybrid - 2012
11-2 Service and Maintenance
Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Fluids identified below are specific to the hybrid vehicle and can be obtained from your dealer. See the owner
manual for the other fluids and lubricants recommended for the vehicle.
Usage Fluid/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 ‑ 8 .

Black plate (2,1)Cadillac Escalade Hybrid - 2012
12-2 Technical Data
Vehicle Data Capacities and Specifications Application Capacities
Metric English
Automatic Transmission* (Pan Removal and Filter
Replacement) 10.9 L 11.5 qt
Cooling System
Drive Motor Generator Control Module Cooling System 2.7 L 2.9 qt
6.0L V8 Engine Cooling System 17.3 L 18.3 qt
Fuel Tank 92.7 L 24.5 gal
Transfer Case Fluid 1.5 L 1.6 qt
*Transmission fluid capacity is approximate. See Automatic Transmission Fluid on page 10 ‑ 5 for information on
checking fluid level.
All capacities are approximate. Recheck fluid level after filling.
Engine Specifications
Engine VIN Code Transmission Spark Plug Gap
6.0L V8 J Automatic 1.02 mm (0.040 in)

Black plate (1,1)Cadillac Escalade Hybrid - 2012
INDEX i-1
AAppearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-37
Automatic Transmission . . . . . . . . 9-7
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Manual Mode . . . . . . . . . . . . . . . . . 9-10
BBattery . . . . . . . . . . . . . . . . . . . . . . . 10-11
Jump Starting . . . . . . . . . . . . . . . 10-29
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . . 5-6
Brakes
Regenerative Braking . . . . . . . . . 9-15
System Messages . . . . . . . . . . . . . 5-6 C Canadian Vehicle Owners . . . . . . . . . ii
Capacities and
Specifications . . . . . . . . . . . . . . . . 12-2
Charging System Light . . . . . . . . . 5-4
Circuit Breakers . . . . . . . . . . . . . . 10-13
Cleaning
Exterior Care . . . . . . . . . . . . . . . 10-37
Climate Control Systems . . . . . . . 8-1
Air Conditioning . . . . . . . . . . . . . . . 8-1
Heating . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Cluster, Instrument . . . . . . . . . . . . . 5-2
Compressor Kit, Tire
Sealant . . . . . . . . . . . . . . . . . . . . . . 10-22
Coolant Surge Tank
Pressure Cap, (DMCM) . . . . . . 10-8
Cooling System, (DMCM) . . . . . . 10-8 D Door
Ajar Messages . . . . . . . . . . . . . . . . 5-6
Drive Belt Routing, Engine . . . . . 12-3
Drive Motor/Generator
Control Module (DMCM)
Coolant Surge Tank
Pressure Cap . . . . . . . . . . . . . . . . 10-8
Drive Motor/Generator
Control Module (DMCM)
Cooling System . . . . . . . . . . . . . . 10-8
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 5-5