brakes GMC YUKON DENALI 2015 Workshop Manual

Black plate (8,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
11-8 Service and Maintenance
Battery
The battery supplies power to start
the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
.Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
.Belts may need replacing if they
squeak or show signs of
cracking or splitting.
.Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
.Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants on page 11-11 for GM
approved fluids.
.Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
.Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled. Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.With a multi-point inspection,
your dealer can check the lamps
and note any concerns.

Black plate (11,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Customer Information 13-11
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Service Publications
Ordering Information
Service Manuals
Service Manuals have the diagnosis
and repair information on the
engines, transmission, axle,
suspension, brakes, electrical,
steering, body, etc.
Service Bulletins
Service Bulletins give additional
technical service information
needed to knowledgeably service
General Motors cars and trucks.
Each bulletin contains instructions
to assist in the diagnosis and
service of the vehicle.
Owner Information
Owner publications are written
specifically for owners and intended
to provide basic operational
information about the vehicle. The
Owner Manual includes the
Maintenance Schedule for all
models.
In-Portfolio: Includes a Portfolio,
Owner Manual, and Warranty
Manual.
RETAIL SELL PRICE: $35.00
–
$40.00 (U.S.) plus handling and
shipping fees.
Without Pouch: Owner Manual only.
RETAIL SELL PRICE:
$25.00 (U.S.) plus handling and
shipping fees.

Black plate (6,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
14-6 OnStar
Vehicle Diagnostics
OnStar Vehicle Diagnostics can
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
other major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If an
On-Demand Diagnostics check is
needed, press
Q, and an Advisor
can run a check.
OnStar Additional
Information
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information.
Selling/Transferring the
Vehicle
Call 1-888-4-ONSTAR immediately
to terminate your OnStar services if
the vehicle is disposed of, sold,
transferred, or if the lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain the
OnStar service options available.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar terms and
conditions:
.Call 1-888-4-ONSTAR
(1-888-466-7827).
.See www.onstar.com (U.S.).
.See www.onstar.ca (Canada).
.Call TTY 1-877-248-2080.
.PressQto speak with an
Advisor.
OnStar services cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service

Black plate (2,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
i-2 INDEX
Automatic TransmissionManual Mode . . . . . . . . . . . . . . . . . 9-32
Shift Lock Control
Function Check . . . . . . . . . . . 10-25
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-22
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-23
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-21 Jump Starting . . . . . . . . . . . . . . . 10-74
Load Management . . . . . . . . . . . . . 6-8
Power Protection . . . . . . . . . . . . . . 6-9
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-37
Blade Replacement, Wiper . . . 10-25
Blind Spot Mirrors . . . . . . . . . . . . . 2-23
Brake Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 9-19
System Warning Light . . . . . . . . 5-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-18 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-38
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-40
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-19
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-39
System Messages . . . . . . . . . . . . 5-38 Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Braking System
Active Emergency . . . . . . . . . . . . 1-19
Break-In, New Vehicle . . . . . . . . . 9-19
Bulb Replacement . . . . . . . . . . . . 10-30 Back-up Lamps . . . . . . . . . . . . . 10-28
Headlamp Aiming . . . . . . . . . . . 10-27
Headlamps . . . . . . . . . . . . . . . . . 10-27
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 10-27
License Plate Lamps . . . . . . . 10-29
Buying New Tires . . . . . . . . . . . . . 10-57
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-6
California Fuel Requirements . . . . . . . . . . . 9-67
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2 Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 9-28
Liftgate . . . . . . . . . . . . . . . . . . . . . . . 2-13
Winter Driving . . . . . . . . . . . . . . . . 9-12
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 4-3
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
Center Console Storage . . . . . . . . 4-2
Chains, Tire . . . . . . . . . . . . . . . . . . 10-62
Charging System Light . . . . . . . . 5-20
Check Engine Light . . . . . . . . . . . . . . . . . . 5-20
Child Restraints Infants and Young
Children . . . . . . . . . . . . . . . . . . . . . 3-41
Lower Anchors and Tethers for Children . . . . . . . . . 3-47
Older Children . . . . . . . . . . . . . . . . 3-39
Securing . . . . . . . . . . . . . . . . 3-56, 3-58
Systems . . . . . . . . . . . . . . . . . . . . . . 3-44
Child-View Mirror . . . . . . . . . . . . . . 2-25
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-81
Interior Care . . . . . . . . . . . . . . . . 10-86

Black plate (4,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
i-4 INDEX
Driving (cont'd)Vehicle Load Limits . . . . . . . . . . . 9-15
Wet Roads . . . . . . . . . . . . . . . . . . . 9-10
Winter . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 8-1
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-84
Electrical System
Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-31
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-31
Instrument Panel Fuse Block . . . . . . . . . 10-34, 10-37
Overload . . . . . . . . . . . . . . . . . . . 10-30
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-40
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-10
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-20
Compartment Overview . . . . . . . 10-5 Engine (cont'd)
Coolant . . . . . . . . . . . . . . . . . . . . . 10-13
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-26
Cooling System . . . . . . . . . . . . . 10-12
Cooling System Messages . . . 5-40
Drive Belt Routing . . . . . . . . . . . . 12-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-28
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 10-17
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-24
Oil Life System . . . . . . . . . . . . . . . 10-9
Oil Messages . . . . . . . . . . . . . . . . . 5-40
Oil Pressure Gauge . . . . . . . . . . 5-14
Overheating . . . . . . . . . . . . . . . . 10-16
Power Messages . . . . . . . . . . . . . 5-41
Pressure Light . . . . . . . . . . . . . . . . 5-27
Running While Parked . . . . . . . . 9-29
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-22
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-7
Equipment, Towing . . . . . . . . . . . . 9-77
Event Data Recorders . . . . . . . . 13-14
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-8
Extender, Safety Belt . . . . . . . . . . 3-24
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . 10-17
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Filter, Engine Air Cleaner . . . . . . . . . 10-10
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-3
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-62 Changing . . . . . . . . . . . . . . . . . . . 10-64
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-89
Fluid Automatic Transmission . . . . 10-10
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-19
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 9-35
Washer . . . . . . . . . . . . . . . . . . . . . 10-18
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 6-5 Bulb Replacement . . . . . . . . . . 10-27
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . 9-58
Four-Wheel Drive . . . . . . . 9-35, 10-21
Four-Wheel-Drive Light . . . . . . . . 5-24
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . 13-12