2023 CADILLAC CT5 engine

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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 405
Do not top off the brake/
clutch fluid. Adding fluid does
not correct a leak. If fluid is
added when the linings are
worn, there will be too much
fluid when new brake linings
are installed. Add or remove
fluid, as necessary, only when
work is done on the brake/
clutch hydraulic system.
{Warning
If too much brake fluid is
added, it can spill on the
engine and burn, if the
engine is hot enough. You or
others could be burned, and
the vehicle could be
damaged. Add brake fluid
only when work is done on
the brake/clutch hydraulic
system.
When the brake/clutch fluid
falls to a low level, the brake
warning light comes on. See
Brake System Warning Light
0 127. Brake fluid absorbs water over
time which degrades the
effectiveness of the brake
fluid. Replace brake fluid at the
specified intervals to prevent
increased stopping distance.
See Maintenance Schedule
0
471.
What to Add
Use only GM approved DOT 4
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0476.
{Warning
The wrong or contaminated
brake fluid could result in
damage to the brake
system. This could result in
the loss of braking leading to
a possible injury. Always use
the proper GM approved
brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces,
the paint finish can be
damaged. Immediately wash
off any painted surface.
Battery - North
America
The original equipment battery
is maintenance free. Do not
remove the cap and do not
add fluid.
Refer to the replacement
number shown on the original
battery label when a new
battery is needed.
The vehicle has an Absorbed
Glass Mat (AGM) 12-volt
battery. Installation of a
standard 12-volt battery will
result in reduced 12-volt
battery life.
When using a 12-volt battery
charger on the 12-volt AGM
battery, some chargers have
an AGM battery setting on the

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
406 Vehicle Care
charger. If available, use the
AGM setting on the charger,
to limit charge voltage to
14.8 volts. Follow the charger
manufacturer's instructions.
For replacement of the
battery, see your dealer.
Stop/Start System
This vehicle has a Stop/Start
system to shut off the engine
to help conserve fuel. See
Stop/Start System0270.
{Warning
WARNING: Battery posts,
terminals and related
accessories can expose you
to chemicals including lead
and lead compounds, which
are known to the State of
California to cause cancer
and birth defects or other
reproductive harm. Wash
hands after handling. For
more information go to
www.P65Warnings.ca.gov. See the warning on the back
cover.
Vehicle Storage
{Warning
Batteries have acid that can
burn you and gas that can
explode. You can be badly
hurt if you are not careful.
See Jump Starting - North
America
0452 for tips on
working around a battery
without getting hurt.
Infrequent Usage: Remove the
black, negative (−) cable from
the battery to keep the
battery from running down.
Extended Storage: Remove
the black, negative (−) cable
from the battery or use a
battery trickle charger.
All-Wheel Drive
If the vehicle is equipped with
All-Wheel-Drive (AWD), this is
an additional system that
needs lubrication.
Transfer Case
Under normal driving
conditions, transfer case fluid
does not require maintenance
unless there is a fluid leak or
unusual noise. If required, have
the transfer case serviced by
your dealer.
Park Brake and
P (Park) Mechanism
Check
{Warning
When you are doing this
check, the vehicle could
begin to move. You or
others could be injured and
property could be damaged.
Make sure there is room in
front of the vehicle in case it
begins to roll. Be ready to
apply the regular brake at
once should the vehicle
begin to move.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 407
Park on a fairly steep hill, with
the vehicle facing downhill.
Keeping your foot on the
regular brake, set the parking
brake.
.To check the parking brake's
holding ability: With the
engine running and the
transmission in N (Neutral),
slowly remove foot pressure
from the regular brake pedal.
Do this until the vehicle is
held by the parking
brake only.
.Automatic transmission
vehicles only: To check the
P (Park) mechanism's holding
ability: With the engine
running, shift to P (Park).
Then release the parking
brake followed by the
regular brake.
Contact your dealer if service
is required.
Wiper Blade
Replacement
Windshield wiper blades
should be inspected for wear
or cracking.
It is a good idea to clean or
replace the wiper blade
assembly on a regular basis or
when worn. For proper
windshield wiper blade length
and type, see Maintenance
Replacement Parts 0477.
Caution
Allowing the wiper arm to
touch the windshield when
no wiper blade is installed
could damage the
windshield. Any damage that
occurs would not be
covered by the vehicle
warranty. Do not allow the
wiper arm to touch the
windshield.
To replace the wiper blade
assembly: 1. Pull the windshield wiper
assembly away from the
windshield. The passenger
side wiper arm has limited
travel.
2. Lift up on the latch in themiddle of the wiper blade
where the wiper arm
attaches.
3. With the latch open, pull the wiper blade down
toward the windshield far
enough to release it from
the J-hooked end of the
wiper arm.
4. Remove the wiper blade.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
410 Vehicle Care
Fuses and circuit breakers
protect power devices in the
vehicle.
If there is a problem on the
road and a fuse needs to be
replaced, the same amperage
fuse can be borrowed. Choose
some feature of the vehicle
that is not needed to use and
replace it as soon as possible.
To check a fuse, look at the
band inside the fuse. If the
band is broken or melted,
replace the fuse. Be sure to
replace a bad fuse with a fuse
of the identical size and rating.
Replacing a Blown Fuse
1. Turn off the ignition.
2. Locate the fuse puller inthe engine compartment
fuse block.
3. Use the fuse puller toremove the fuse from the
top or side, as shown
above.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
412 Vehicle Care
{Warning
Installation or use of fuses
that do not meet GM’s
original fuse specifications is
dangerous. The fuses could
fail, and result in a fire. You
or others could be injured or
killed, and the vehicle could
be damaged.
See Accessories and
Modifications 0374 and
General Information 0374.
To check or replace a blown
fuse, see Electrical System
Overload 0409.
Engine Compartment
Fuse Block
The engine compartment fuse
block is on the driver side of
the engine compartment.
Lift the fuse block cover to
access the fuses. The vehicle may not be
equipped with all of the fuses
and relays shown.
Caution
Spilling liquid on any
electrical component on the
vehicle may damage it.
Always keep the covers on
any electrical component.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 413
Fuses Usage
1 Long Range RadarFront Sensor
2 Park/Daytime Running Lamps
3 Exterior Lighting Module 4
4 Exterior Lighting Module 7
5 Headlamp Level
6 –
Fuses Usage
7 Electronic Brake
Control Module
8 Washer Pump
9 –
10 –
11 –
12 Horn
13 Front Wiper
Fuses Usage
14 Exterior Lighting Module 6
15 Exterior Lighting Module 1
16 Exterior Lighting Module 5
17 Exterior Lighting Module 3
18 Aero Shutter
19 –
20 –
21 Virtual Key System/ Power Sounder
Module
22 Engine Control Module Battery
23 Transmission Control Module
24 Active Engine Mount
25 –
26 Engine Control Module
27 Injectors/Ignition 2
28 Charged Air Cooler/ Not Used
29 Transmission Aux Oil Pump/Transmission
Reverse Lock Out

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
414 Vehicle Care
Fuses Usage
30 Injectors/Ignition 131 Emissions 1
32 Emissions 2
33 Starter Solenoid
34 –
35 –
36 Starter Pinion/ Not Used
37 AC Clutch
38 –
39 –
40 –
41 –
42 Water Pump/ Not Used
43 –
44 –
Relays Usage
47–
48 Front Wiper Speed/ Not Used
49 Front Wiper Control 51 –
Relays Usage
52 Engine Control
Module
53 Starter Solenoid
54 Starter Pinion/ Not Used
55 –
57 AC Clutch
58 –
Instrument Panel
Fuse Block
The instrument panel fuse
block is in the end of the driver
side of the instrument panel.
To access the fuses, remove
the end panel by gently prying
with a plastic tool near each
clip, beginning at the point
shown.
To install the end cover, insert
the tabs on the back of the
cover into the slots in the
instrument panel at the points
shown. Align the clips with the
slots in the instrument panel,
and press the cover into place.
The vehicle may not be
equipped with all of the fuses
and relays shown.