brake CADILLAC CT6 2016 User Guide

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
134 Instruments and Controls circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
Metric English
This light should come on briefly
when the engine is started. If it does
not come on then, have it fixed so it
will be ready to warn you if there is
a problem.
If the light comes on and stays on,
there is a brake problem.
{ Warning
The brake system might not be
working properly if the brake
system warning light is on.
(Continued) Warning (Continued) Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
Metric English
This light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric
Parking Brake system or another
system. A message may also display in the Driver Information
Center (DIC). See Brake System
Messages 0 147 .
If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light
On some vehicles the service
electric parking brake light should
come on briefly when the vehicle is
in ON/RUN. If it does not come on,
have it fixed so it will be ready to
warn if there is a problem. For
vehicles with the reconfigurable
cluster, this light may not come on
when the vehicle is in ON/RUN.
If this light stays on, there is a
problem with a system on the
vehicle that is causing the parking
brake system to work at a reduced
level. The vehicle can still be driven,

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 135but should be taken to a dealer as
soon as possible. See Electric
Parking Brake 0 214 . If a message
displays in the Driver Information
Center (DIC), see Brake System
Messages 0 147 .
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the vehicle needs service. A chime may
also sound when the light comes on
steady.
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
See Brake System Warning Light
0 133 and Brake System
Messages 0 147 .
Lane Keep Assist (LKA)
Light For some vehicles, this light comes
on briefly while starting the vehicle.
If it does not come on, have the
vehicle serviced.
For vehicles with the uplevel cluster,
this light may not come on when
starting the vehicle.
This light is green if LKA is available
to assist.
LKA may assist by gently turning
the steering wheel if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction. The LKA light will turn
amber.
This light is amber and flashes as a
Lane Departure Warning (LDW)
alert, to indicate that the lane
marking has been crossed.
See Lane Keep Assist (LKA) 0 248 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 147
Battery Voltage and
Charging Messages BATTERY SAVER ACTIVE This message displays when the
vehicle has detected that the battery
voltage is dropping beyond a
reasonable point. The battery saver
system starts reducing features of
the vehicle that may be noticed. At
the point that features are disabled,
this message displays. Turn off
unnecessary accessories to allow
the battery to recharge.
LOW BATTERY This message is displayed when the
battery voltage is low. See Battery -
North America 0 284 .
SERVICE BATTERY
CHARGING SYSTEM
This message is displayed when
there is a fault in the battery
charging system. Take the vehicle to
your dealer for service. TRANSPORT MODE ON This message is displayed when the
vehicle is in transport mode. Some
features can be disabled while in
this mode, including Remote
Keyless Entry (RKE), remote start,
and the vehicle alarm system. Take
the vehicle to your dealer for service
to turn transport mode off.
Brake System Messages BRAKE FLUID LOW This message is displayed when the
brake fluid level is low. See Brake
Fluid 0 283 .
BRAKES OVERHEATED This message is displayed when the
brakes are becoming overheated.
This may be seen when driving on
hills. Shift to a lower gear. STEP ON BRAKE TO
RELEASE PARK BRAKE This message is displayed if you
attempt to release the Electric
Parking Brake without the brake
pedal applied. See Electric Parking
Brake 0 214 .
RELEASE PARKING BRAKE This message is displayed if the
Electric Parking Brake is on while
the vehicle is in motion. See Electric
Parking Brake 0 214 .
SERVICE BRAKE ASSIST This message may be displayed
when there is a problem with the
brake boost assist system. The
brake boost assist motor may be
heard and brake pedal pulsation
may be felt. This is normal under
these conditions. Take the vehicle to
your dealer for service.
SERVICE PARKING BRAKE
This message is displayed when
there is a problem with the parking
brake. Take the vehicle to your
dealer for service.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
148 Instruments and Controls
Compass Messages The compass display will be blank if
the vehicle temporarily loses
communication with the Global
Positioning System (GPS).
Cruise Control Messages ADAPTIVE CRUISE SET
TO XXX This message displays when the
Adaptive Cruise Control (ACC)
speed is set. See Adaptive Cruise
Control 0 223 .
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:
.
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 0 333 .
.
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 0 220 .
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 0 223 .
SERVICE ADAPTIVE CRUISE
CONTROL
This message displays when the
Adaptive Cruise Control (ACC)
needs service. Take the vehicle to
your dealer. 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 A door open symbol will be
displayed on the DIC showing which
door is open. If the vehicle has been
shifted out of P (Park), a DOOR
OPEN message will also be
displayed. The DOOR OPEN
message may also be displayed if
the vehicle starts to move. Close the
door completely.
HOOD OPEN
This message will display along with
a hood open symbol when the hood
is open. A chime may also sound.
Close the hood completely.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
150 Instruments and Controls 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 0 270 .
OIL PRESSURE LOW — TURN
VEHICLE OFF 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.
Engine Power Messages ENGINE POWER IS REDUCED This message 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
maximum 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 when the
vehicle is low on fuel. Refuel as
soon as possible.
Key and Lock Messages NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE This message displays when trying
to start the vehicle if an RKE
transmitter is not detected. The
transmitter battery may be weak.
See “ Starting the Vehicle with a Low
Transmitter Battery ” under Remote
Keyless Entry (RKE) System
Operation 0 29 . NO REMOTE DETECTED This message displays when the
transmitter battery may be weak.
See “ Starting the Vehicle with a Low
Transmitter Battery ” under Remote
Keyless Entry (RKE) System
Operation 0 29 .
NO REMOTE DETECTED
PRESS BRAKE TO RESTART This message displays when
attempting to turn off the vehicle
and the RKE transmitter is no longer
detected. Restarting is allowed
without the RKE transmitter for
five minutes. Press the brake pedal
and ENGINE START/STOP to
restart the vehicle.
NUMBER OF KEYS
PROGRAMMED This message displays when
programming new keys to the
vehicle.
REMOTE LEFT IN VEHICLE
This message displays when
leaving the vehicle with the RKE
transmitter still inside.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
152 Instruments and Controls This message may also be
displayed if there is a problem with
the StabiliTrak system. See Traction
Control/Electronic Stability
Control 0 217 .
FORWARD COLLISION
ALERT OFF This message displays when the
Forward Collision Alert has been
turned off.
FRONT CAMERA BLOCKED
CLEAN WINDSHIELD This message displays when the
camera is blocked. The Front
Pedestrian Braking (FPB), Forward
Collision Alert (FCA), Front
Automatic Braking (FAB), Lane
Keep Assist (LKA), and Lane
Departure Warning (LDW) features
will not operate. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue. LANE CHANGE ALERT OFF This message indicates that the
driver has turned the Side Blind
Zone Alert (SBZA) and Lane
Change Alert (LCA) systems off.
LANE KEEPING ASSIST
UNAVAILABLE This message displays when the
Lane Keep Assist (LKA) and Lane
Departure Warning (LDW) system is
temporarily unavailable. The LKA
system does not need service.
This message could be due to the
camera being blocked. Clean the
outside of the windshield behind the
rearview mirror.
REAR AUTO BRAKE/PARK
ASSIST OFF This message displays when the
Parking Assist system has been
turned off or when there is a
temporary condition causing the
system to be disabled. REAR AUTO BRAKE AND
PARK ASSIST UNAVAILABLE This message displays when
attempting to activate the parking
and backing features of the Driver
Assistance System when they are
temporarily unavailable. The system
does not need service.
This can occur under the following
conditions:
.
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 0 333 .
.
Heavy rain or snow is interfering
with the radar object detection or
camera performance.
See Driver Assistance
Systems 0 230 .
SERVICE AUTOMATIC
COLLISION PREP
If this message displays, take the
vehicle to your dealer to repair the
system. Adaptive Cruise Control

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 153(ACC), Forward Collision Alert
(FCA), and/or the Front Automatic
Braking (FAB) System may not
work. Do not use these systems
until the vehicle has been repaired.
SERVICE DRIVER ASSIST
SYSTEM If this message displays, take the
vehicle to your dealer to repair the
system.
Adaptive Cruise Control (ACC),
Forward Collision Alert (FCA), Front
Automatic Braking (FAB),
Assistance Systems for Parking or
Backing, Lane Keep Assist (LKA),
and/or Lane Departure Warning
(LDW) may not work. Do not use
these systems until the vehicle has
been repaired.
SERVICE FRONT CAMERA
If this message remains on after
continued driving, the vehicle needs
service. Take the vehicle to your
dealer. Do not use the Front
Pedestrian Braking (FPB), Forward
Collision Alert (FCA), Front Automatic Braking (FAB), Lane
Keep Assist (LKA), and Lane
Departure Warning (LDW) features.
SERVICE NIGHT VISION
SYSTEM The Night Vision system needs
service. See your dealer.
SERVICE PARK ASSIST This message displays if there is a
problem with the Parking Assist
system. Do not use this system to
help you park. See your dealer for
service.
SERVICE REAR AUTO BRAKE
AND PARK ASSIST This message displays if there is a
problem with the parking and
backing features of the Driver
Assistance System. Do not use this
system to help park or back the
vehicle. See your dealer for service.
SERVICE SIDE DETECTION
SYSTEM
If this message remains on after
continued driving, the vehicle needs
service. Take the vehicle to your dealer. Side Blind Zone Alert
(SBZA), Lane Change Alert (LCA),
and Rear Cross Traffic Alert (RCTA)
features will not work.
SIDE DETECTION SYSTEM
UNAVAILABLE This message indicates that Side
Blind Zone Alert (SBZA), Lane
Change Alert (LCA), and Rear
Cross Traffic Alert (RCTA) are
disabled either because the sensor
is blocked and cannot detect
vehicles in the blind zone, or the
vehicle is passing through an open
area, such as the desert, where
there is insufficient data for
operation. This message may also
activate during heavy rain or due to
road spray. The vehicle does not
need service. For cleaning, see
"Washing the Vehicle" under
Exterior Care 0 333 .
TAKE STEERING
If LKA does not detect active driver
steering, an alert and chime may be
provided. Move the steering wheel
to dismiss. See Lane Keep Assist
(LKA) 0 248 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 155
Security Messages THEFT ATTEMPTED This message displays if the vehicle
detects a tamper condition.
Service Vehicle Messages SERVICE POWER STEERING This message displays and a chime
may sound when there may be a
problem with the power steering
system. If this message displays
and a reduction in steering
performance or loss of power
steering assistance is noticed, see
your dealer.
SERVICE VEHICLE SOON This message is displayed if there is
a problem with the vehicle. Take the
vehicle to your dealer for service. Steering System
Messages ACTION REQUIRED TURN
STEERING WHEEL START
VEHICLE AGAIN This message displays to indicate
that the steering column lock device
was unable to unlock the column,
and the engine did not start. If this
happens, immediately turn the
steering wheel from side to side.
If that does not unlock the steering
column, turn the ignition off, and
then open the driver door. Then turn
the vehicle back on and turn the
steering wheel from side to side for
about 15 seconds. The steering
column must be turned to each side
immediately after pressing ENGINE
START/STOP to help the steering
column lock device unlock the
column. In some situations it may
take significant force. This situation
may be avoided by straightening the
front wheels before turning off the
engine. SERVICE ACTIVE STEERING
SYSTEM This message displays when there
may be a problem with Active Rear
Steer system. The rear wheels may
be locked at current position and the
driver may experience a small
steering wheel correction for the
vehicle going forward. If the problem
persists for the next ignition cycle,
see your dealer for service.
SERVICE STEERING
COLUMN LOCK This message displays when a
problem with the steering column
lock device has been detected. See
your dealer for service.
STEERING COLUMN LOCKED This message displays when the
steering column is locked with the
engine running. It is normal for the
steering column to be locked during
a remote start. The steering column
should unlock after the brake pedal
and ENGINE START/STOP are
pressed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
156 Instruments and Controls
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 This message displays if there is a
problem with the Tire Pressure
Monitor System (TPMS). See Tire
Pressure Monitor Operation 0 309 . TIRE LEARNING ACTIVE This message displays when the
system is learning new tires. See
Tire Pressure Monitor
Operation 0 309 .
TIRE PRESSURE LOW ADD
AIR TO TIRE This message displays when the
pressure in one or more of the tires
is low.
This message also displays LEFT
FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate
the location of the low tire.
The low tire pressure warning light
will also come on. See Tire
Pressure Light 0 137 .
If a tire pressure message appears
on the DIC, stop as soon as
possible. Inflate the tires by adding
air until the tire pressure is equal to
the values shown on the Tire and
Loading Information label. See Tires
0 299 , Vehicle Load Limits 0 198 ,
and Tire Pressure 0 306 . More than one tire pressure
message can appear at a time. The
DIC also shows the tire pressure
values. See Driver Information
Center (DIC) 0 140 .
Transmission Messages SERVICE TRANSMISSION This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT DENIED This message displays when using
Manual Mode and attempting to shift
to a gear not appropriate for the
vehicle speed and engine
revolutions per minute (rpm). See
Manual Mode 0 212 .
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
turning the ignition off if the vehicle
is not in P (Park).

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
160 Instruments and Controls Ionizer
If equipped and on, this feature
purifies the air in the interior of the
vehicle. See Automatic Climate
Control System (Quad Zone) 0 178
or Automatic Climate Control
System (Dual Zone) 0 185 .
Select Off or On.
Collision/Detection Systems Select the Collision/Detection
Systems menu and the following
may be displayed if equipped:
.
Alert Type
.
Auto Collision Preparation
.
Front Pedestrian Detection
.
Go Notifier
.
Rear Cross Traffic Alert
.
Lane Change Alert
Alert Type
This feature will set crash alerts to
beeps or seat vibrations. This
setting affects all crash alerts
including Forward Collision, Lane Departure Warning, Adaptive Cruise
Control, Parking Assist, and
Backing Warning alerts.
Select Beeps or Safety Alert Seat.
Auto Collision Preparation
This feature will turn on or off the
Forward Collision Alert (FCA) and
Front Automatic Braking (FAB). The
Off setting disables all FCA and
FAB functions. With the Alert and
Brake setting, both FCA and FAB
are available. The Alert setting
disables FAB, but if the vehicle has
Adaptive Cruise Control (ACC),
some last-second automatic braking
capability is still provided, though
less likely to occur. See Front
Automatic Braking (FAB)
System 0 240 .
Select Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature will turn on or off the
Front Pedestrian Braking (FPB)
system alerts and automatic
braking. The Off setting disables all
FPB functions. With the Alert &
Brake setting, system alerts and
automatic braking are both available. The Alert setting disables
automatic braking. See Front
Pedestrian Braking (FPB)
System 0 241 .
Select Off, Alert, or Alert & Brake.
Go Notifier
This feature will give a reminder that
Adaptive Cruise Control provides
when it has brought the vehicle to a
complete stop behind another
stopping vehicle, and then that
vehicle drives on.
Select Off or On.
Rear Cross Traffic Alert
This allows the Rear Cross Traffic
Alert feature to be turned on or off.
Select Off or On.
Lane Change Alert
This allows the Lane Change Alert
feature to be turned on or off.
Select Off or On.