2023 CADILLAC CT5 fuel

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
460 Vehicle Care
.Do not use cleaners that are
not intended for
automotive use.
.Use a nonabrasive wax on
the vehicle after washing to
protect and extend the
molding finish.
Carbon Fiber Care
Carbon fiber composite parts
can be washed and waxed like
any other parts. Use a clear or
black pigmented wax. See
Composite Materials 0266.
Cleaning Exterior Lamps/
Lenses, Emblems, Decals,
and Stripes
Use only lukewarm or cold
water, a soft cloth, and a car
washing soap to clean exterior
lamps, lenses, emblems,
decals, and stripes. Follow
instructions under "Washing
the Vehicle" previously in this
section.
Lamp covers are made of
plastic, and some have a UV
protective coating. Do not
clean or wipe lamp covers when dry. This can cause
scratches to the surface of
the lamp cover.
Do not use any of the
following items on lamp
covers:
.Abrasive or caustic agents.
.Washer fluids and other
cleaning agents in higher
concentrations than
suggested by the
manufacturer.
.Solvents, alcohols, fuels,
or other harsh cleaners.
.Ice scrapers or other hard
items.
.Aftermarket appearance
caps or covers while the
lamps are illuminated, due to
excessive heat generated.
Caution
Failure to clean lamps
properly can cause damage
to the lamp cover that would
not be covered by the
vehicle warranty.
Caution
Using wax on low gloss black
finish stripes can increase
the gloss level and create a
non-uniform finish. Clean low
gloss stripes with soap and
water only.
Air Intakes
Clear debris from the air
intakes between the hood and
windshield when washing the
vehicle.
Shutter System

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 461
The vehicle may have a
shutter system designed to
help improve fuel economy.
Always keep the shutter
system clear of debris, snow
and ice. If the check engine
light is activated, please check
to see if the shutter system is
clear of debris, snow or ice.
Windshield and Wiper
Blades
Clean the outside of the
windshield with glass cleaner.
Clean rubber wiper blades
using a lint-free cloth or paper
towel soaked with windshield
washer fluid or a mild
detergent. Wash the
windshield thoroughly when
cleaning the blades. Bugs,
road grime, sap, and a buildup
of vehicle wash/wax
treatments may cause wiper
streaking.
Replace the wiper blades if
they are worn or damaged.
Damage can be caused byextreme dusty conditions,
sand, salt, heat, sun, snow,
and ice.
Weatherstrips
Apply weatherstrip lubricant
on weatherstrips to make
them last longer, seal better,
and not stick or squeak.
Lubricate weatherstrips at
least once a year. Hot, dry
climates may require more
frequent application. Black
marks from rubber material on
painted surfaces can be
removed by rubbing with a
clean cloth. See
Recommended Fluids and
Lubricants
0476.
Tires
Use a stiff brush with tire
cleaner to clean the tires.
Caution
Using petroleum-based tire
dressing products on the
vehicle may damage the
paint finish and/or tires.
(Continued)
Caution (Continued)
When applying a tire
dressing, always wipe off
any overspray from all
painted surfaces on the
vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with
mild soap and water to clean
the wheels. After rinsing
thoroughly with clean water,
dry with a soft, clean towel.
A wax may then be applied.
Caution
Chrome wheels and chrome
wheel trim may be damaged
if the vehicle is not washed
after driving on roads that
have been sprayed with
magnesium chloride or
calcium chloride. These are
used on roads for conditions
such as dust control. Always
wash the chrome with soap
and water after exposure.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
462 Vehicle Care
Caution
To avoid surface damage on
wheels and wheel trim, do
not use strong soaps,
chemicals, abrasive polishes,
cleaners, or brushes. Use
only GM approved cleaners.
Do not drive the vehicle
through an automatic car
wash that uses silicon
carbide tire/wheel cleaning
brushes. Damage could
occur and the repairs would
not be covered by the
vehicle warranty.
Brake System
Visually inspect brake lines
and hoses for proper hook-up,
binding, leaks, cracks, chafing,
etc. Inspect disc brake pads
for wear and rotors for
surface condition. Inspect
brake linings/shoes for wear
or cracks. Inspect all other
brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged,
loose, or missing parts or signs
of wear at least once a year.
Inspect power steering for
proper attachment,
connections, binding, leaks,
cracks, chafing, etc.
Visually check constant
velocity joint boots and axle
seals for leaks.
Body Component
Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges,
and the steel fuel door hinges,
unless the components are
plastic. Applying silicone
grease on weatherstrips with
a clean cloth will make them
last longer, seal better, and
not stick or squeak.
Underbody Maintenance
Every six months, use plain
water to flush any corrosive
materials from the underbody.
Take care to thoroughly clean
any areas where mud and
other debris can collect.
Do not directly power wash
the transfer case and/or
front/rear axle output seals.
High pressure water can
overcome the seals and
contaminate the fluid.
Contaminated fluid will
decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the
body repair shop applies
anti-corrosion material to
parts repaired or replaced to
restore corrosion protection.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
470 Service and Maintenance
Caution (Continued)
on the vehicle. The use of
flushes, solvents, cleaners,
or lubricants that are not
approved by GM could
damage the vehicle,
requiring expensive repairs
that are not covered by the
vehicle warranty.
The Tire Rotation and
Required Services are the
responsibility of the vehicle
owner. It is recommended to
have your dealer perform
these services every
12 000 km/7,500 mi. Proper
vehicle maintenance helps to
keep the vehicle in good
working condition, improves
fuel economy, and reduces
vehicle emissions.
Because of the way people
use vehicles, maintenance
needs vary. There may need to
be more frequent checks and
services. The Additional
Required Services - Normal
are for vehicles that:
.Carry passengers and cargo
within recommended limits
on the Tire and Loading
Information label. See
Vehicle Load Limits 0261.
.Are driven on reasonable
road surfaces within legal
driving limits.
.Use the recommended fuel.
See Recommended Fuel
(LSY 2.0L L4 Engine) 0360
or
Recommended Fuel (LGY
3.0L V6 and LT4 6.2L
V8 Engines) 0361.
Refer to the information in the
Maintenance Schedule
Additional Required Services -
Normal Service.
The Additional Required
Services - Severe are for
vehicles that are:
.Mainly driven in heavy city
traffic in hot weather.
.Mainly driven in hilly or
mountainous terrain.
.Frequently towing a trailer.
.Used for high speed or
competitive driving.
.Used for taxi, police,
or delivery service.
Refer to the information in the
Maintenance Schedule
Additional Required Services -
Severe Service.
{Warning
Performing maintenance
work can be dangerous and
can cause serious injury.
Perform maintenance work
only if the required
information, proper tools,
and equipment are available.
If they are not, see your
dealer to have a trained
technician do the work. See
Doing Your Own Service
Work 0375.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Service and Maintenance 475
Diagnostics
.OnStar active, if equipped
.Service history/recall check
Engine Oil and Filter
.Engine oil
.Oil life monitor
‐Reset oil life monitor
Exterior Lights
.Visual inspection
Windshield and Wipers
.Visual inspection
Battery
.Battery visual inspection
.Battery test results
.Battery cables and
connections
Systems, Fluids, and
Visible Leak Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
.Fuel system
.Windshield washer fluid
Tire Inspection
.Tire pressure, tread depth,
and wear
.Rotation, if applicable
.Alignment check, optional
.Reset tire pressure monitor
.Check tire sealant expiration
date, if equipped
.Check spare tire, if equipped
Brakes
.Check brake system
Visible and Functional
Inspections
.Seat belt components
.Exhaust system
.Accelerator pedal
.Passenger compartment air
filter, if equipped
.Engine air filter
.Hoses
.Belts
.Shocks and struts
.Steering components
.Axle boots or driveshaft and
u-joints
.Compartment lift struts,
if equipped
.Floor mats secured, no
interference with pedals
.Horn
.Ignition lock, if equipped
.Starter switch
.Evaporative control system
Lubricate
.Chassis components
Special Application
Services
.Severe Commercial Use
Vehicles Only: Lubricate
chassis components every
oil change.
.Have underbody flushing
service performed. See
"Underbody Maintenance" in
Exterior Care 0457.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Technical Data 483
ApplicationCapacities
Metric English
Front Axle 0.40 L 0.42 qt
Rear Axle
IOpen Differential - Small 0.75 L 0.79 qt
IOpen Differential - Large 1.0 L 1.0 qt
IMechanical Limited Slip 1.0 L 1.0 qt
IElectronic Limited Slip 1.5 L 1.5 qt
Fuel Tank 66.0 L 17.5 gal
Transfer Case (AWD) 0.80 L 0.85 qt
Wheel Nut Torque 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
2.0L L4 Engine (LSY) KAutomatic0.65–0.75 mm (0.026–0.030 in)
3.0L V6 Engine (LGY) WAutomatic0.65–0.75 mm (0.026–0.030 in)
6.2L V8 Engine (LT4) 6Automatic
Manual 0.725–0.875 mm (0.028–
0.034 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage the
spark plug.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
490 Customer Information
Calling for Assistance
When calling Roadside
Assistance, have the following
information ready:
.Your name, home address,
and home telephone number
.Telephone number of your
location
.Location of the vehicle
.Model, year, color, and
license plate number of the
vehicle
.Odometer reading, Vehicle
Identification Number (VIN),
and delivery date of the
vehicle
.Description of the problem
Coverage
Services are provided for the
duration of the vehicle’s
powertrain warranty.
In the U.S., anyone driving the
vehicle is covered. In Canada,
a person driving the vehicle
without permission from the
owner is not covered.Roadside Assistance is not a
part of the New Vehicle
Limited Warranty. General
Motors North America and
Cadillac reserve the right to
make any changes or
discontinue the Roadside
Assistance program at any
time without notification.
General Motors North America
and Cadillac reserve the right
to limit services or payment to
an owner or driver if they
decide the claims are made
too often, or the same type of
claim is made many times.
Cadillac Owner
Privileges™
.Emergency Fuel Delivery:
Delivery of enough fuel for
the vehicle to get to the
nearest service station.
.Lock-Out Service:
Service
to unlock the vehicle if you
are locked out. A remote
unlock may be available if
you have OnStar. For security reasons, the driver
must present identification
before this service is given.
.Emergency Tow from a
Public Road or Highway:
Tow to the nearest Cadillac
dealer for warranty service,
or if the vehicle was in a
crash and cannot be driven.
Assistance is not given when
the vehicle is stuck in the
sand, mud, or snow.
.Flat Tire Change:
Service to
change a flat tire with a
spare tire. The spare tire,
if equipped, must be in good
condition and properly
inflated. It is your
responsibility for the repair
or replacement of the tire if
it is not covered by the
warranty.
.Battery Jump Start: Service
to jump start a dead battery.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Customer Information 491
.Trip Interruption Benefits
and Service:If your trip is
interrupted due to a
warranty failure, incidental
expenses may be
reimbursed during the
Powertrain warranty period.
Items considered are hotel,
meals, and rental car or a
vehicle being delivered back
to the customer, up to
500 miles.
Cadillac Technician
Roadside Assistance
(U.S. Only)
Cadillac's exceptional
Roadside Assistance is more
than an auto club or towing
service. It provides every
Cadillac owner in the United
States with the advantage of
contacting a Cadillac advisor
and, where available, a Cadillac
trained dealer technician who
can provide on-site service.
A dealer technician will travel
to your location within a
30-mile radius of a
participating Cadillac dealership. If beyond this
radius, we will arrange to have
your car towed to the nearest
Cadillac dealership. Each
technician travels with a
specially equipped service
vehicle complete with the
necessary Cadillac parts and
tools required to handle most
roadside repairs.
Services Not Included in
Roadside Assistance
.Impound towing caused by
violation of any laws
.Legal fines
.Mounting, dismounting,
or changing of snow tires,
chains, or other traction
devices
Service is not provided if a
vehicle is in an area that is not
accessible to the service
vehicle or is not a regularly
traveled or maintained public
road, which includes ice and
winter roads. Off-road use is
not covered.
Services Specific to
Canadian-Purchased
Vehicles
.Fuel delivery:
Reimbursement is up to
7 liters. Diesel fuel delivery
may be restricted. Propane
and other fuels are not
provided through this
service.
.Lock-Out Service: Vehicle
registration is required.
.Trip Interruption Benefits
and Assistance:
Pre-authorization, original
detailed receipts, and a copy
of the repair orders are
required. Once authorization
has been received, the
Roadside Assistance advisor
will help you make
arrangements and explain
how to receive payment.
Items considered are hotel,
meals, and rental car or a
vehicle being delivered back
to the customer, up to
800 km.