Page 28 of 90

Black plate (4,1)Cadillac Escalade Hybrid - 2012
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.
{ WARNINGPlugging 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.
Page 47 of 90

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 .
Page 56 of 90
Black plate (14,1)Cadillac Escalade Hybrid - 2012
10-14 Vehicle Care 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. Fuses Usage
1 ACPO (SUV Only)
2 BECM FAN
3 ACCM
4 CAB HTR PMP Fuses Usage
5 EMPTY
6 COOL PUMP
7 EPS
Page 57 of 90
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