2009 GMC YUKON HYBRID cooling

Fuses Usage
1ACPO
2 BECM FAN
3 ACCM
4 CAB HTR PMP
5 EMPTY
6 COOL PUMP
7 EPS
Fuses Usage
8Drive Motor/Generator
Control Module 1
9Drive 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
FAN LOW Cooling Fan Low Speed Relay
FAN MID 1 Cooling Fan Mid 1
FAN HICooling Fan High
Speed Relay
FAN MID 2 Cooling Fan Mid 2
FAN CNTRL Cooling Fan Control
5-23

Capacities and Specications
ApplicationCapacities
English Metric
Cooling System
Drive Motor Generator Control Module Cooling
System2.9 qt 2.7 L
6.0L V8 Engine Cooling System 15.5 qt 14.7 L
Fuel Tank 24.5 gal 92.7 L
All capacities are approximate. Recheck fluid level after filling.
5-52

Maintenance Schedule
At Least Once a Year
Tire Sealant and Compressor Kit
Check the sealant expiration date printed on the
instruction label of the Tire Sealant and Compressor Kit
at least once a year. See your dealer/retailer for a
replacement canister.
Recommended Fluids and
Lubricants
Fluids identified below are specific to the hybrid
vehicle and can be obtained from your dealer/retailer.
See the owner manual for the other fluids and lubricants
recommended for the vehicle.
Usage Fluid/Lubricant
Drive Motor/
Generator
Control Module
(DMCM)
Cooling SystemAlways use the pre-mixed
50/50 mixture of de-ionized water
and DEX-COOL
®(silicate-free)
coolant available at your
dealer/retailer. SeeDrive
Motor/Generator Control Module
(DMCM) Cooling System on
page 5-6.
Engine Drive Belt Routing
6-2

A
Alternating Current
Power Outlet................................................ 2-2
Antilock Brake, System Warning Light.................. 3-7
Audio System(s)
Navigation/Radio System..............................3-14
Automatic Transmission, Fluid............................ 5-5
B
Battery..........................................................5-15
Brake Fluid....................................................5-11
Brakes..........................................................5-11
Regenerative Braking...................................2-10
System Warning Light.................................... 3-6
Bulb Replacement
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-21
C
Canadian Owners................................................ ii
Capacities and Specifications............................5-52
Chains, Tire...................................................5-30
Charging System Light...................................... 3-4Climate Controls............................................... 3-2
Compressor Kit
Storing.......................................................5-50
Compressor Kit, Tire Sealant....................5-32, 5-42
Coolant
Engine Temperature Gage.............................. 3-8
Coolant Surge Tank Pressure Cap, (DMCM)......... 5-6
Cooling System, (DMCM).................................. 5-6
D
Drive Motor/Generator Control Module (DMCM)
Coolant Surge Tank Pressure Cap................... 5-6
Drive Motor/Generator Control Module (DMCM)
Cooling System............................................. 5-6
Driver Information Center (DIC).........................3-12
Warnings and Messages...............................3-12
E
Engine
Compartment Overview.................................. 5-4
Coolant Temperature Gage............................. 3-8
Drive Belt Routing......................................... 6-2
1