2017 GMC YUKON XL brake sensor

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
In Brief 7
1.Air Vents 0196.
2. Head-Up Display (HUD) 0155
(If Equipped).
3.
gTraction Control/Electronic
Stability Control 0239.
jPower Assist Steps 049 (If
Equipped).
XParking Assist Button (If
Equipped). See Assistance
Systems for Parking or
Backing 0252.
ALane Departure Warning
(LDW) 0261 (If Equipped).
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake
Pedal 0216.
4. Turn Signal Lever. See Turn
and Lane-Change
Signals 0185.
Windshield Wiper/
Washer 0126. 5. Favorite Switches (Out of
View). See “Steering Wheel
Controls” in the infotainment
manual.
Volume Switches (Out of View).
See “Steering Wheel Controls”
in the infotainment manual.
6. Hazard Warning
Flashers 0185.
7. Instrument Cluster 0134.
8. Shift Lever. See Automatic
Transmission 0227.
Tow/Haul Selector Button. See
Tow/Haul Mode 0232.
Range Selection Mode (If
Equipped). See Manual
Mode 0230.
9. Light Sensor. See Automatic
Headlamp System 0184.
10. Infotainment 0190.
11. Dual Automatic Climate Control
System 0191.
12. Heated and Ventilated Front
Seats 068. 13. Rear Climate Control Buttons.
SeeRear Climate Control
System 0195.
14. Ignition Positions (Keyless
Access) 0219 orIgnition
Positions (Key Access) 0217.
15. Steering Wheel Controls. See the infotainment manual.
16. Horn 0126.
17. Steering Wheel
Adjustment 0125.
18. Hood Release. See Hood 0286.
19. Cruise Control 0242.
Adaptive Cruise Control 0244
(If Equipped).
Forward Collision Alert (FCA)
System 0255 (If Equipped).
20. Trailer Brake Control Panel (If Equipped). See Towing
Equipment 0274.
21. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0144.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/13/16
160 Instruments and Controls
ADAPTIVE CRUISE
TEMPORARILY UNAVAILABLE
This message displays when
attempting to activate Adaptive
Cruise Control (ACC) when it is
temporarily unavailable. The ACC
system does not need service.
This can occur under the following
conditions:
.Cruise is turned on when the
vehicle is stopped.
. The radar cannot see objects
well. See the next message.
FRONT RADAR BLOCKED –
SEE OWNERS MANUAL
This message can display when:
. The radar is not clean. Keep the
radar sensors free of mud, dirt,
snow, ice, and slush. Clean the
entire front and/or rear of the
vehicle. For cleaning
instructions, see Exterior
Care 0365.
. Heavy rain or snow is interfering
with the radar object detection or
camera performance.
CRUISE SET TO XXX
This message displays when the
cruise control speed is set. See
Cruise Control 0242.
NO CRUISE BRAKING GAS
PEDAL APPLIED
This message displays when
Adaptive Cruise Control (ACC) is
active and the driver is pressing the
gas pedal. When this occurs, ACC
will not brake. See Adaptive Cruise
Control 0244.
SERVICE ADAPTIVE CRUISE
CONTROL
If this message displays, take the
vehicle to your dealer to repair the
system. Adaptive Cruise Control
(ACC), Forward Collision Alert
(FCA), and/or the Active Emergency
Braking System may not work. Do
not use these systems until the
vehicle has been repaired.
SHIFT TO PARK BEFORE
EXITING
This message may display if
Adaptive Cruise Control (ACC) is
engaged holding the vehicle at a
stop, and the driver attempts to exit
the vehicle. Put the vehicle in
P (Park) before exiting.
Door Ajar Messages
DOOR OPEN
This message displays and a chime
may sound if a door is not fully
closed. Stop and turn off the
vehicle, check the door for
obstructions, and close the door
again. Check to see if the message
still appears on the DIC.
HOOD OPEN
This message displays and a chime
may sound if the hood is not fully
closed. Stop and turn off the
vehicle, check the hood for
obstructions, and close the hood
again. Check to see if the message
still appears on the DIC.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/13/16
Instruments and Controls 167
Starting the Vehicle
Messages
PRESS BRAKE TO START
This message is displayed when
attempting to start the vehicle
without first pressing the brake
pedal.
SERVICE KEYLESS START
SYSTEM
This message is displayed if there is
a problem with the pushbutton start
system. Take the vehicle to your
dealer for service.
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
system is not working properly. The
tire pressure light also flashes and
then remains on during the sameignition cycle. See
Tire Pressure
Light 0149. Several conditions may
cause this message to appear. See
Tire Pressure Monitor Operation
0 336. If the warning comes on and
stays on, there may be a problem
with the TPMS. See your dealer.
TIRE LEARNING ACTIVE
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays when the system
is relearning the tire positions on
your vehicle. The tire positions must
be relearned after rotating the tires
or after replacing a tire or sensor.
See Tire Inspection 0339, Tire
Rotation 0339, Tire Pressure
Monitor System 0335, and Tire
Pressure 0333.
TIRE PRESSURE LOW ADD
AIR TO TIRE
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low. This message
also displays with a vehicle picture
to indicate the location of the low tire. The low tire pressure warning
light will also come on. See
Tire
Pressure Light 0149. You can
receive more than one tire pressure
message at a time. If a tire pressure
message appears on the DIC, stop
as soon as you can. Have the tire
pressures checked and set to those
shown on the Tire and Loading
Information label. See Tires0326,
Vehicle Load Limits 0212, and Tire
Pressure 0333. The DIC also
shows the tire pressure values. See
Driver Information Center
(DIC) 0152.
Transmission Messages
4WD OFF
If equipped with four-wheel drive,
this message displays when the
four-wheel-drive system is
temporarily disabled due to an
overheated condition. The vehicle
will run in two-wheel drive when this
message is present. Once the
four-wheel-drive system cools down,
the message turns off and the
four-wheel-drive system returns to
normal operation.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/13/16
172 Instruments and Controls
Maximum Startup Volume
This feature sets the maximum
startup volume. If the vehicle is
started and the volume is greater
than this level, the volume is
adjusted to this level. To set the
maximum startup volume, press +
or−to increase or decrease.
Audio Cue Volume
This feature sets the volume of
audio files played at system startup
and shutdown.
Select On, then press + or −to
increase or decrease the volume.
Vehicle
Select and the following may
display:
. Climate and Air Quality
. Collision/Detection Systems
. Comfort and Convenience
. Lighting
. Power Door Locks
. Remote Lock, Unlock, Start
Climate and Air Quality
Select the Climate and Air Quality
menu and the following may display:
.Auto Fan Max Speed
. Auto Defog
. Auto Rear Defog
Auto Fan Max Speed
This feature will set the maximum
auto fan speed.
Select Low, Medium, or High.
Auto Defog
When set to On, the auto defog
comes on when the climate control
sensor detects high interior
humidity. Air will be directed to the
windshield.
Select Off or On.
Auto Rear Defog
If equipped, this feature will
automatically turn on the rear
window defogger when the vehicle
is first started in cold weather and
turn off when the vehicle is warmed.
Select Off or On.
Collision/Detection Systems
Select the Collision/Detection
Systems menu and the following
may display:
. Alert Type
. Forward Collision System
. Go Notifier
. Park Assist
. Side Blind Zone Alert
. Rear Cross Traffic Alert
Alert Type
This feature will set crash alerts to
beeps or seat vibrations. This
setting affects all crash alerts
including Forward Collision Alert,
Lane Departure Warning, and Park
Assist alerts.
Select Beeps or Safety Alert Seat.
Forward Collision System
This feature will turn on or off
Forward Collision Alert (FCA) and
Forward Automatic Braking (FAB).
The Off setting disables all FCA and
FAB functions. With the Alert and
Brake setting, both FCA and FAB

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
244 Driving and Operating
.To slow down in small
increments, briefly press SET–.
For each press, the vehicle goes
about 1.6 km/h (1 mph) slower.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0134.
The increment value used depends
on the units displayed.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise speed. While
pressing the accelerator pedal or
shortly following the release to
override cruise control, briefly
pressing SET– will result in cruise
control set to the current vehicle
speed.
Using Cruise Control on Hills
How well the cruise control works
on hills depends on the vehicle
speed, the load, and the steepness
of the hills. When going up steep
hills, pressing the accelerator pedal may be necessary to maintain
vehicle speed. When going
downhill, Cruise Grade Braking
helps maintain the driver selected
speed.
Cruise Grade Braking is enabled
when the vehicle is started and
cruise control is active. It is not
enabled in Range Selection Mode.
It assists in maintaining driver
selected speed when driving on
downhill grades by using the engine
and transmission to slow the
vehicle.
To disable and enable Cruise Grade
Braking for the current ignition key
cycle, press and hold the Tow/Haul
button for five seconds. A DIC
message displays. See
Transmission Messages
0167.
For other forms of Grade Braking,
see Automatic Transmission 0227
andTow/Haul Mode 0232.
Ending Cruise Control
There are four ways to end cruise
control:
. Step lightly on the brake pedal. .
Press*.
. Shift the transmission to
N (Neutral).
. To turn off cruise control,
press
5.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
5is pressed
or if the ignition is turned off.
Adaptive Cruise Control
If equipped with Adaptive Cruise
Control (ACC), it allows for selecting
the cruise control set speed and
following gap. Read this entire
section before using this system.
ACC uses a camera and radar
sensors to detect other vehicles.
See Radio Frequency Statement
0 401. The following gap is the
following time (or distance) between
your vehicle and a vehicle detected
directly ahead in your path, moving
in the same direction. If no vehicle
is detected in your path, ACC works
like regular cruise control.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
Driving and Operating 245
If a vehicle is detected in your path,
ACC can speed up the vehicle or
apply limited, moderate braking to
maintain the selected following gap.
To disengage ACC, apply the brake.
If the Traction Control System (TCS)
or electronic stability control system
activates while ACC is engaged,
ACC may automatically disengage.
SeeTraction Control/Electronic
Stability Control 0239. When road
conditions allow ACC to be safely
used, the ACC can be turned
back on.
ACC will not engage if the TCS or
electronic stability control system is
disabled.
{Warning
ACC has limited braking ability
and may not have time to slow
the vehicle down enough to avoid
a collision with another vehicle
you are following. This can occur
when vehicles suddenly slow or
stop ahead, or enter your lane.
Also see “Alerting the Driver” in
(Continued)
Warning (Continued)
this section. Complete attention is
always required while driving and
you should be ready to take
action and apply the brakes. See
Defensive Driving 0201.
{Warning
ACC will not detect or brake for
children, pedestrians, animals,
or other objects.
Do not use ACC when:
. On winding and hilly roads
or when the sensors are
blocked by snow, ice, or dirt.
The system may not detect
a vehicle ahead. Keep the
entire front of the vehicle
clean.
(Continued)
Warning (Continued)
.Visibility is low, such as in
fog, rain, or snow
conditions. ACC
performance is limited under
these conditions.
. On slippery roads where
fast changes in tire traction
can cause excessive
wheel slip.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
Driving and Operating 249
braking may feel or sound different
than if the brakes were applied
manually. This is normal.
Stationary or Very Slow-Moving
Objects
{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when a
vehicle suddenly appears due to
a vehicle ahead changing lanes.
Your vehicle may not stop and
could cause a crash. Use caution
when using ACC. Your complete
attention is always required while
driving and you should be ready
to take action and apply the
brakes.ACC Automatically Disengages
ACC may automatically disengage
and you will need to manually apply
the brakes to slow the vehicle when:
.
Your vehicle speed goes below
the minimum speed of 16 km/h
(10 mph).
. The sensors are blocked.
. The Traction Control System
(TCS) or electronic stability
control system has activated or
been disabled.
. No traffic or other objects are
being detected.
. There is a fault in the system.
A message will appear on the DIC
indicating that cruise is disengaging.
The ACC active symbol will not be
displayed when ACC is no longer
active.
ACC Override
If using the accelerator pedal while
ACC is active, a warning message
in the DIC and in the HUD,
if equipped, will indicate that
automatic braking will not occur. See
Vehicle Messages 0158. ACC
will resume operation when the
accelerator pedal is not being
pressed.
{Warning
The ACC will not automatically
apply the brakes if your foot is
resting on the accelerator pedal.
You could crash into a vehicle
ahead of you.
Curves in the Road
{Warning
On curves, ACC may not detect a
vehicle ahead in your lane. You
could be startled if the vehicle
accelerates up to the set speed,
especially when following a
vehicle exiting or entering exit
ramps. You could lose control of
the vehicle or crash. Do not use
ACC while driving on an entrance
or exit ramp. Always be ready to
use the brakes if necessary.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
Driving and Operating 251
Do not use ACC when driving on
steep hills or when towing a trailer.
ACC will not detect a vehicle in the
lane while driving on steep hills. The
driver will often need to take over
acceleration and braking on steep
hills, especially when towing a
trailer. If the brakes are applied, the
ACC disengages.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake pedal.
. Press
*.
. Press
5. Erasing Speed Memory
The cruise control set speed is
erased from memory if
5is pressed
or if the ignition is turned off.
Cleaning the Sensing System
The radar sensor on the front of the
vehicle can become blocked by
snow, ice, dirt, or mud. This area
needs to be cleaned for ACC to
operate properly.
For cleaning instructions, see
“Washing the Vehicle” under
Exterior Care 0365.
System operation may also be
limited under snow, heavy rain,
or road spray conditions.
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes
or reduce crash damage while
driving, backing, and parking. Read
this entire section before using
these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These
systems do not replace the need
for paying attention and driving
safely. You may not hear or feel
alerts or warnings provided by
these systems. Failure to use
proper care when driving may
result in injury, death, or vehicle
damage. See Defensive
Driving 0201.
(Continued)