cooling GMC YUKON 2015 Owner's Manual
[x] Cancel search | Manufacturer: GMC, Model Year: 2015, Model line: YUKON, Model: GMC YUKON 2015Pages: 455, PDF Size: 4.72 MB
Page 23 of 455
Black plate (16,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
1-16 In Brief
Climate Controls
This system controls the heating,
cooling, and ventilation.
1. Driver Temperature Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger Temperature Control
7. AUTO (Automatic Operation)
8. Air Recirculation9. Rear Climate Control Power
Button
10. Rear AUTO (Automatic Operation)
11. Front Climate Control Power Button
12. Rear Fan Control
13. Rear Air Delivery Mode Control
14. Rear Temperature Control
15. RCTRL (Rear Climate Control Lockout)
16. Rear Window Defogger
17. SYNC (Synchronized Temperature)
See Dual Automatic Climate Control
System on page 8-1 andRear
Climate Control System on page 8-5
(If Equipped).
Transmission
Range Selection Mode
The Range Selection Mode switch,
if equipped, is located on the shift
lever.
1. To enable the Range Selection
feature, move the column shift
lever to the M (Manual) position.
The current range will appear
next to the M. This is the highest
attainable range with all lower
gears accessible. As an
example, when 5 (Fifth) gear is
selected, 1 (First) through
5 (Fifth) gears are available.
Page 138 of 455
Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-3
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 5-5
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Power Outlets . . . . . . . . . . . . . . . . . 5-7
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Instrument Cluster . . . . . . . . . . . 5-10
Speedometer . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . 5-12
Trip Odometer . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . 5-12
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-13
Engine Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . 5-14 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Voltmeter Gauge . . . . . . . . . . . . . 5-15
Safety Belt Reminders . . . . . . . 5-16
Airbag Readiness Light . . . . . . 5-17
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 5-17
Charging System Light . . . . . . 5-18
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-19
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-21
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-22
Tow/Haul Mode Light . . . . . . . . 5-23
Hill Descent Control Light . . . . 5-23
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-23
Vehicle Ahead Indicator . . . . . . 5-23
Traction Off Light . . . . . . . . . . . . 5-24
StabiliTrak®OFF Light . . . . . . . 5-24
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-24
Tire Pressure Light . . . . . . . . . . 5-25
Low Fuel Warning Light . . . . . . 5-25
Security Light . . . . . . . . . . . . . . . . 5-25
High-Beam On Light . . . . . . . . . 5-26 Front Fog Lamp Light . . . . . . . . 5-26
Lamps On Reminder . . . . . . . . . 5-26
Cruise Control Light . . . . . . . . . 5-26
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 5-27
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-30
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-30
Brake System Messages . . . . 5-31
Compass Messages . . . . . . . . . 5-31
Cruise Control Messages . . . . 5-32
Door Ajar Messages . . . . . . . . . 5-32
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-33
Engine Oil Messages . . . . . . . . 5-33
Engine Power Messages . . . . 5-34
Fuel System Messages . . . . . . 5-34
Key and Lock Messages . . . . . 5-35
Lamp Messages . . . . . . . . . . . . . 5-35
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-35
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-37
Airbag System Messages . . . . 5-39
Security Messages . . . . . . . . . . 5-39
Page 170 of 455
Black plate (33,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Instruments and Controls 5-33
REAR ACCESS OPEN
This message will display when the
liftgate is open. Close the liftgate
completely.
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
SeeEngine Coolant Temperature
Gauge on page 5-15. To avoid
added strain on a hot engine, the air
conditioning compressor
automatically turns off. When the
coolant temperature returns to
normal, the air conditioning
compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. See Engine
Coolant Temperature Gauge on
page 5-15.
When towing, use tow/haul mode to
prevent damage to the engine or
transmission. See Tow/Haul Mode
on page 9-35.
ENGINE OVERHEATED STOP
ENGINE
This message displays and a chime
may sound if the engine cooling
system reaches unsafe
temperatures for operation. Stop
and turn off the vehicle as soon as it
is safe to do so to avoid severe
damage. This message clears when
the engine has cooled to a safe
operating temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the CHANGE ENGINE
OIL SOON message. See Engine
Oil Life System on page 10-9 for
information on how to reset the
message. See Engine Oil on
page 10-6 andMaintenance
Schedule on page 11-2.
ENGINE OIL LOW ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level
before filling to the recommended
level. If the oil is not low and this
message remains on, take the
vehicle to your dealer for service.
See Engine Oil on page 10-6.
Page 171 of 455
Black plate (34,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
5-34 Instruments and Controls
ENGINE OIL HOT IDLE
ENGINE
This message displays when the
engine oil becomes hotter than the
normal operating temperature. Stop
and allow the vehicle to idle until it
cools down. SeeEngine Coolant
Temperature Gauge on page 5-15.
OIL PRESSURE LOW STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer. See Engine
Oil on page 10-6.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chime
may sound when the cooling system
temperature gets too hot and the
engine further enters the engine
coolant protection mode. See
Engine Overheating on page 10-18
for more information.
This message also displays when
the vehicle's engine power is
reduced. Reduced engine power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no reduction in
performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
at a reduced speed while this
message is on, but acceleration and
speed may be reduced. Anytime
this message stays on, the vehicle
should be taken to your dealer for
service as soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays and a chime
may sound if the fuel level is low.
Refuel as soon as possible. See
Fuel Gauge on page 5-13 andFuel
on page 9-70.
TIGHTEN GAS CAP
This message may display along
with the malfunction indicator lamp
on the instrument cluster if the
vehicle's fuel cap is not tightened
properly. See Malfunction Indicator
Lamp on page 5-19. Reinstall the
fuel cap fully. See Filling the Tank
on page 9-72. The diagnostic
system can determine if the fuel cap
has been left off or improperly
installed. A loose or missing fuel
cap allows fuel to evaporate into the
atmosphere. A few driving trips with
the cap properly installed should
turn this light and message off.
Page 199 of 455
Black plate (8,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
6-8 Lighting
Battery Load
Management
The vehicle has Electric Power
Management (EPM), which
estimates the battery's temperature
and state of charge. It then adjusts
the voltage for best performance
and extended life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. The voltmeter
gauge or the voltage display on the
Driver Information Center (DIC),
if equipped, may show the voltage
moving up or down. This is normal.
If there is a problem, an alert will be
displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fastenough at idle to produce all the
power that is needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommendedthat the driver reduce the electrical
loads as much as possible. See
Battery Voltage and Charging
Messages on page 5-30.
Battery Power Protection
This feature shuts off the dome and
reading lamps if they are left on for
more than 10 minutes when the
ignition is off. This will keep the
battery from running down.
Page 202 of 455
Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Climate Controls 8-1
Climate Controls
Climate Control Systems
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-1
Rear Climate Control System . . . . . . . . . . . . . . . . . . . . . . 8-5
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Service . . . . . . . . . . . . . . . . . . . . . . . 8-8
Climate Control
Systems
Dual Automatic Climate
Control System
With this system the heating,
cooling, and ventilation in the
vehicle can be controlled. Some
climate control settings can be
changed. See “Climate and Air
Quality” underVehicle
Personalization on page 5-43.
1. Driver Temperature Control 2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger Temperature Control
7. AUTO (Automatic Operation)
8. Air Recirculation
9. Rear Climate Control Power
Button
10. Rear AUTO (Automatic Operation)
11. Front Climate Control Power Button
12. Rear Fan Control
13. Rear Air Delivery Mode Control
14. Rear Temperature Control
15. RCTRL (Rear Climate Control Lockout)
16. Rear Window Defogger
17. SYNC (Synchronized Temperature)
Page 219 of 455
Black plate (10,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
9-10 Driving and Operating
{Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive slowly through it. At faster
speeds, water splashes and the
vehicle can stall. When going
through water, the brakes get wet
and it may take longer to stop. See
“Driving on Wet Roads” later in this
section.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, steering, suspension, wheels, tires, and
exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. See the
Maintenance
Schedule on page 11-2.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep-standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
(Continued)
Warning (Continued)
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
Page 220 of 455
Black plate (11,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
Driving and Operating 9-11
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10-44.
.Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
(Continued)
Warning (Continued)
loss of steering. Always have the
engine running and the vehicle
in gear.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Be alert on top of hills;
something could be in your lane
(stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the
road, creating less traction or grip.
Page 244 of 455
Black plate (35,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
Driving and Operating 9-35
Gear before shifting from D
(Drive) to M (Manual Mode)6th 5th 4th 3rd 2nd 1st
Range after shifting from D
(Drive) to M (Manual Mode) M4 M4 M3 M2 M2 M1
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode on page 9-35.
While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used.
{Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If you are
stuck, do not spin the tires. When
stopping on a hill, use the brakes
to hold the vehicle in place.
Low Traction Mode
Low Traction Mode assists in
vehicle acceleration when road
conditions are slippery, such as with
ice or snow. While the vehicle is at a
stop, select M2 using Range
Selection Mode. This will limit
torque to the wheels and help to
prevent the tires from spinning.
Tow/Haul Mode
Vehicles with an automatic
transmission have a Tow/Haul
Mode. The Tow/Haul Mode adjusts
the transmission shift pattern to
reduce shift cycling. This provides
increased performance, vehicle
control, and enhanced transmission
and engine cooling when driving
down steep hills or mountain
grades, towing, or hauling heavy
loads.
Page 286 of 455
Black plate (77,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
Driving and Operating 9-77
Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the regular brakes
until the chocks absorb the load. 4. Reapply the brake pedal. Then
apply the parking brake and shift
into P (Park).
5. Release the brake pedal.Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. Stop and have someone pick up and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See
Maintenance Schedule on
page 11-2. Things that are
especially important in trailer
operation are automatic
transmission fluid, engine oil, axle lubricant, belts, cooling system, and
brake system. It is a good idea to
inspect these before and during
the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Trailer Towing
Do not tow a trailer during break-in.
See
New Vehicle Break-In on
page 9-19.
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly.
For example, if the trailer is too
heavy, the brakes may not work
well —or even at all. The driver
and passengers could be
seriously injured. The vehicle may
also be damaged; the resulting
repairs would not be covered by
(Continued)