2012 CADILLAC ESCALADE HYBRID ECU

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.

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 (27,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-277. Attach the air only hose (F) onto
the tire valve stem and press the
lever down to secure it.
8. Plug the power plug (C) into the
accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See “ Power Outlets ” in the
owner manual.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug
cord in the door or window.
9. Start the vehicle. The vehicle
must be running while using the
air compressor. 10. Press the on/off (D) button to
turn the compressor on.
The compressor will inflate the
tire with air only.
11. Inflate the tire to the
recommended inflation
pressure using the pressure
gauge (E). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure on page 10 ‑ 16 .
The pressure gauge (E) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate reading.
The compressor may be turned
on/off until the correct pressure
is reached. 12. Press the on/off button (D) to
turn the tire sealant and
compressor kit off.
Be careful while handling the
tire sealant and compressor
kit as it could be warm after
usage.
13. Unplug the power plug (C) from
the accessory power outlet in
the vehicle.
14. Disconnect the air only
hose (F) from the tire
valve stem, by turning it
counterclockwise, and replace
the tire valve stem cap.
15. Replace the air only hose (F)
and the power plug (C) back in
its original location.
16. Place the equipment in the
original storage location in the
vehicle.

Black plate (35,1)Cadillac Escalade Hybrid - 2012
Vehicle Care 10-35Two-wheel drive vehicles should
not be towed with the rear wheels
on the ground. Two-wheel drive
transmissions have no provisions
for internal lubrication while being
towed.
To dolly tow a two ‐ wheel ‐ drive
vehicle, the vehicle must be towed
with the rear wheels on the dolly.
See “ Rear Towing (Rear Wheels Off
the Ground) ” later in this section for
more information. Four-Wheel Drive Vehicles
Use the following procedure to dolly
tow a four-wheel drive vehicle from
the front:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer's instructions.
2. Drive the front wheels onto the
dolly.
3. Shift the transmission to
P (Park).
4. Firmly set the parking brake.
See “ Parking Brake ” in the
owner manual.{ WARNINGShifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). The driver or others
could be injured. Make sure the
parking brake is firmly set before
the transfer case is shifted to
N (Neutral).
5. Shift the transfer case to
N (Neutral). See “ Shifting into
N (Neutral) ” under Four-Wheel
Drive on page 9 ‑ 11 .
6. Secure the vehicle to the dolly
following the manufacturer's
instructions.
7. Release the parking brake only
after the vehicle being towed is
firmly attached to the towing
vehicle.
8. Turn the ignition to LOCK/OFF.

Black plate (36,1)Cadillac Escalade Hybrid - 2012
10-36 Vehicle Care After towing, see “ Shifting Out of
N (Neutral) ” under Four-Wheel Drive
on page 9 ‑ 11 .
Dolly Towing – Rear Towing
(Rear Wheels Off the Ground)
Two ‐ Wheel Drive Vehicles
Use the following procedure to dolly
tow a two-wheel drive vehicle from
the rear:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer's instructions. 2. Drive the rear wheels onto the
dolly.
3. Firmly set the parking brake.
See “ Parking Brake ” in the
owner manual.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly
following the manufacturer's
instructions.
6. Use an adequate clamping
device designed for towing to
ensure that the front wheels are
locked into the straight position.
7. Turn the ignition to LOCK/OFF. Four ‐ Wheel ‐ Drive Vehicles
Use the following procedure to dolly
tow a four-wheel-drive vehicle from
the rear:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the
dolly.
3. Firmly set the parking brake.
See “ Parking Brake ” in the
owner manual.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly
following the manufacturer's
instructions.
6. Use an adequate clamping
device designed for towing to
ensure that the front wheels are
locked into the straight position.