ignition CADILLAC CT5 2023 Service Manual

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 289
the correct operation of the
EPB system, or at the request
of other safety functions that
utilize the EPB.
If the EPB fails to apply, block
the rear wheels to prevent
vehicle movement.
EPB Release
To release the EPB:1. Turn the ignition on or to accessory mode.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.
The EPB is released when the
red parking brake status light
is off.
If the amber service parking
brake warning light is on,
release the EPB by pressing
and holding the EPB switch.
Continue to hold the switch
until the red parking brake
status light is off. If either light
stays on after release is
attempted, see your dealer.
Caution
Driving with the parking
brake on can overheat the
brake system and cause
premature wear or damage
to brake system parts. Make
sure that the parking brake
is fully released and the
brake warning light is off
before driving.
If you are towing a trailer and
parking on a hill, see Driving
Characteristics and Towing
Tips 0365.
Automatic EPB Release
The EPB will automatically
release if the vehicle is
running, placed into gear, and
an attempt is made to drive
away. Avoid rapid acceleration
when the EPB is applied, to
preserve parking brake
lining life.
Brake Assist
Brake Assist detects rapid
brake pedal applications due
to emergency braking
situations and provides
additional braking to activate
the Antilock Brake System
(ABS) if the brake pedal is not
pushed hard enough to
activate ABS normally. Minor
noise, brake pedal pulsation,
and/or pedal movement during
this time may occur. Continue
to apply the brake pedal as
the driving situation dictates.
Brake Assist disengages when
the brake pedal is released.
Hill Start Assist (HSA)
{Warning
Do not rely on the HSA
feature. HSA does not
replace the need to pay
attention and drive safely.
You may not hear or feel
alerts or warnings provided
by this system. Failure to
(Continued)

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 293
Driver Mode Control
Driver Mode Control (DMC)
allows the driver to adjust the
overall driving experience to
better suit driver preference
by adjusting vehicle systems
to fit specific driving needs.
Drive mode availability and
affected vehicle systems are
dependent on vehicle trim
level, region, and optional
features.
If the vehicle is in Tour Mode
or My Mode, it will stay in that
mode through future ignition
cycles. If the vehicle is in any
other mode, it will return to
Tour Mode when the vehicle is
restarted. When a mode is
selected, an indicator will
come on in the instrument
cluster and stay on.
Mode Activation
Driver Mode Control Switchfor Automatic Transmission
Driver Mode Control Switch for Manual Transmission
To activate, press the MODE
switch on the center console.
Use the up and down arrows
to move through the menu.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 305
The speedometer reading can
be displayed in either English
or metric units. See
Instrument Cluster (Base
Level)0113 or
Instrument Cluster (Uplevel)
0 115. 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,
briefly applying SET− will
result in cruise set to the
current vehicle speed.
Using Cruise Control on Hills
How well the cruise control will
work on hills depends upon
the vehicle speed, load, and
the steepness of the hills. When going up steep hills, you
might have to step on the
accelerator pedal to maintain
your speed. When going
downhill, the cruise control
system may automatically
brake to slow the vehicle
down. Also, you may have to
brake or shift to a lower gear
to keep your speed down.
If the brake pedal is applied,
cruise control disengages.
Ending Cruise Control
There are five ways to end
cruise control:
.Step lightly on the brake
pedal.
.Press*.
.Shift the transmission to
N (Neutral).
.Press the clutch pedal for
several seconds or shift to
Neutral (manual
transmissions).
.PressJ.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
Jis
pressed or if the ignition is
turned off.
Adaptive Cruise
Control (Advanced)
If equipped, Adaptive Cruise
Control (ACC) allows the
cruise control set speed and
following gap to be selected.
Read this entire section
before using this system. The
following gap is the following
time 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. ACC uses
camera and radar sensors.
See Radio Frequency
Statement 0496.
If a vehicle is detected in your
path, ACC can speed up the
vehicle or apply limited,
moderate braking to maintain

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
314 Driving and Operating
attention is on the road ahead,
ACC resumes automatically.
See“Attention to the Road”
under Super Cruise 0317.
If necessary, press RES+ or
the accelerator pedal to
resume ACC. If stopped for
more than two minutes or if
the driver door is opened and
the driver seat belt is
unbuckled, the ACC
automatically applies the
Electric Parking Brake (EPB)
to hold the vehicle. The EPB
status light will turn on. See
Electric Parking Brake 0288.
To release the EPB, press the
accelerator pedal.
A DIC warning message may
display indicating to shift to
P (Park) before exiting the
vehicle.
{Warning
If ACC has stopped the
vehicle, and if ACC is
disengaged, turned off,
or canceled, the vehicle will
(Continued)
Warning (Continued)
no longer be held at a stop.
The vehicle can move. When
ACC is holding the vehicle at
a stop, always be prepared
to manually apply the
brakes.
{Warning
Leaving the vehicle without
placing it in P (Park) can be
dangerous. Do not leave the
vehicle while it is being held
at a stop by ACC. Always
place the vehicle in P (Park)
and turn off the ignition
before leaving the vehicle.
ACC Override
If using the accelerator pedal
while ACC is active, the ACC
indicator turns blue on the
instrument cluster and in the
HUD (if equipped) to indicate
that automatic braking will not
occur. 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 (Continued)

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
316 Driving and Operating
Other Vehicle Lane Changes
ACC will not detect a vehicle
ahead until it is completely in
the lane. The brakes may need
to be manually applied.
Objects Not Directly in Front
of Your Vehicle
The detection of objects in
front of the vehicle may not be
possible if:
.The vehicle or object ahead
is not within your lane.
.The vehicle ahead is shifted,
not centered, or is shifted to
one side of the lane.Driving in Narrow Lanes
Vehicles in adjacent traffic
lanes or roadside objects may
be incorrectly detected when
located along the roadway.
Do Not Use ACC on Hills and
When Towing a Trailer
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. If the brakes are
applied, ACC disengages.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake
pedal.
.Press*.
.PressJ.
Erasing Speed Memory
The ACC set speed is erased
from memory if
Jis pressed
or if the ignition is turned off.
Weather Conditions
Affecting ACC
System operation may be
limited under snow, heavy rain,
or road spray conditions.
Accessory Installations and
Vehicle Modifications
Do not install or place any
object around the front
camera windshield area that
would obstruct the front
camera view.
Do not install objects on top of
the vehicle that overhang and
obstruct the front camera,
such as a canoe, kayak,
or other items.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
326 Driving and Operating
First Alert
.If the steering wheel light bar flashes green, the system has detected that your head and
eyes may not be directed toward the road.
.The flashing will stop when the system detects that your head and eyes appear to be
directed toward the road.
Second Alert
.If the steering wheel light bar flashes green for too long, Super Cruise will alert the driver to
take control of steering immediately by flashing the light bar red. Also, either beeps will
sound or the Safety Alert Seat will vibrate. Touch the Settings icon on the infotainment
home page. Select “Vehicle”to display the list of available options and select ”Alert Type”
and “Adaptive Cruise Go Notifier” in“Collision/Detection Systems”.
.Take over steering, then Super Cruise will disengage.
.To re-engage Super Cruise, press].See “Using Super Cruise” previously in this section.
Third Alert
.If the steering wheel light bar flashes red for too long, a voice command will tell you to take
control of the vehicle.
.Take control of the steering immediately; ACC and Super Cruise will disengage.
.A DIC message will indicate that Super Cruise is locked out. Super Cruise cannot be
re-engaged until the next ignition cycle.
.Continued failure to take over steering will cause the vehicle to brake to a stop and OnStar
will be called. The brake lamps and hazard warning flashers will come on.
.Take control of the vehicle and continue driving.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 333
Super Cruise Message Summary (cont'd)
Unavailable You Have Taken Vehicle Control.The brake pedal is being pressed.
.The Adaptive Cruise Control has been canceled or
turned off.
Unavailable Sensor Blocked Clear snow, ice, dirt, or other contaminants from the front and rear areas of the vehicle.
Unavailable Sharp Curve Some curves are too sharp to be navigated by the Super Cruise system. Super Cruise will be available after the curve is
traveled.
Super Cruise Unavailable Super Cruise is unavailable for reasons not described in other messages.
Super Cruise Locked Out See Owner’s Manual The driver did not take control of the vehicle when prompted by the Super Cruise system. The Super Cruise system will be
disabled until the ignition is turned off and back on.
Map Updates
Super Cruise map information
must be periodically updated
at least once every seven
months to determine whether
Super Cruise is available on
certain roads.
See the following website for
Super Cruise map open source
compliance documentation,
including the license
information:https://oss.veoneer.com/
Data Download
If the vehicle is equipped with
OnStar and has an active
service plan, additional data
may be collected through the
OnStar system. This includes
information about: the
vehicle’s operation; a crash
involving the vehicle; the use
of the vehicle and its features;
and, in certain situations, the
location and approximate GPSspeed of the vehicle. Refer to
the OnStar Terms and
Conditions and Privacy
Statement on the OnStar
website.
Location Services
This setting enables or
disables sharing of vehicle
location outside the vehicle for
certain purposes. Even if the
Location Services setting is
disabled, vehicle location
information will continue to be

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
396 Vehicle Care
If no problem is found, check
to see if coolant is visible in
the coolant surge tank.
If coolant is visible but the
coolant level is not at or above
the indicated mark, add a
50/50 mixture of clean,
drinkable water and
DEX-COOL coolant at the
coolant surge tank, but be
sure the cooling system,
including the coolant surge
tank pressure cap, is cool
before you do it.
2.0L L4 Engine
Automatic Coolant Service
Fill Instructions
The vehicle is equipped with a
service feature that assists
with filling and removing air
from the cooling system after
service of components or
when coolant is added after
being too low.To use the service feature:
1. With a cold system, add
coolant to the indicated
line on the surge tank.
2. Replace the pressure cap on the surge tank.
To activate the service
feature: 1. Connect the vehicle to a battery charger.
2. Turn the ignition on. See Ignition Positions 0267.
3. Turn off the air conditioning.
4. Set the parking brake. 5. At the same time, press
the accelerator and the
brake pedal for
two seconds, then release.
6. At the end of the cycle, check the coolant level in
the surge tank and add
coolant if it is below the
indicated line. Turn the
ignition off, allow the
Electronic Control Module
(ECM) to go to sleep, about
two minutes, and repeat
Steps 2–6.
Listen for pump activation and
movement of the control
valves while watching the level
of the coolant in the surge
tank. If the tank empties, turn
the ignition off, carefully
remove the pressure cap, refill
to the indicated line, replace
the pressure cap, and repeat
Steps 2–6.
The fill and air removal
process will run for
approximately 15 minutes.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 403
1. Using the G-Force Gaugein the HUD display, apply
the brakes 10 times
starting at 100 km/h
(60 mph) to 50 km/h
(30 mph) while
decelerating at 0.4g.
SeeHead-Up Display (HUD)
0143. This is a medium
brake application. Drive for
at least 0.5 km (0.3 mi)
between applying the
brakes.
2. If further cleanup of the brake discs is needed,
repeat this procedure with
0.7g applications.
As with all high performance
brake systems, some amount
of brake squeal is normal.
Brake Pad Life
System (If Equipped)
When to Change
Brake Pads
If equipped, this system
estimates the remaining life of
the front and rear brake pads. Brake Pad Life is displayed in
the Driver Information Center
(DIC), along with a percentage
for each axle. The system
must be reset every time the
brake pads are changed.
When the system has
determined that the brake
pads need to be replaced, a
message displays, which may
include mileage remaining.
Brake pads should always be
replaced as complete
axle sets.
How to Reset the Brake
Pad Life System
The system will automatically
detect when significantly worn
brake pads are replaced.
When the ignition is turned on
after new pads and wear
sensors are installed, a
message will display. Follow
the prompts to reset the
system.
The brake pad life system can
also be manually reset:
1. Display Brake Pad Life on
the DIC. See Driver
Information Center (DIC)
(Base Level) 0136 or
Driver Information Center
(DIC) (Uplevel) 0139.
2. Select the Brake Pad Life menu.
3. Select front or rear pads as appropriate.
4. Select YES on the confirmation message.
Repeat for the pads on the
other axle if they were also
replaced.
How to Disable the Brake
Pad Life System
The brake pad life system can
be turned off. This may be
necessary if aftermarket brake
pads without wear sensors
are installed. When the system
is turned off, the front and
rear brake pad
life percentages will not
display. However, the built-in
wear indicators that make a
high-pitched warning sound

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
404 Vehicle Care
when the brake pads are worn
can still determine when the
pads should be replaced. See
Brakes0400.
To turn off the brake pad life
system: 1. Display Brake Pad Life on the DIC. See Driver
Information Center (DIC)
(Base Level) 0136 or
Driver Information Center
(DIC) (Uplevel) 0139.
2. Select the Brake Pad Life menu.
3. Select DISABLE.
To turn the brake pad life
system back on, follow the
above steps but select
ENABLE in Step 2.
Brake Pad Sensor System
(V-Series Blackwing)
The V-Series Blackwing has
electronic brake pad wear
sensors, when the brake pads
need to be replaced, a
message displays in the Driver
Information Center (DIC). When the message displays,
install new brake pads and
brake pad wear sensors on
the vehicle.
When the ignition is turned on
after new brake pads and
brake pad wear sensors are
installed, the message should
no longer display.
The brake pad sensor system
can only be reset by replacing
the brake pads and brake pad
wear sensors.
Brake Fluid
The brake/clutch master
cylinder reservoir is filled with
GM approved DOT 4 brake
fluid as indicated on the
reservoir cap. See Engine
Compartment Overview
0378
for the location of the
reservoir. Checking Brake Fluid
Place the vehicle in P (Park) or
Neutral with the parking brake
applied if equipped with a
manual transmission. On a
level surface, the brake fluid
level should be between the
minimum and maximum marks
on the brake fluid reservoir.
There are only two reasons
why the brake fluid level in the
reservoir may go down:
.Normal brake lining wear.
When new linings are
installed, the fluid level goes
back up.
.A fluid leak in the brake/
clutch hydraulic system.
Have the brake/clutch
hydraulic system fixed. With
a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area
around the cap before
removing it.