2021 CADILLAC CT4 fuel

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
SERVICE AND MAINTENANCE 389
The following list is intended to
explain the services and conditions to
look for that may indicate services are
required.
Battery
The 12-volt battery supplies power to
start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a battery
with full cranking power.
.Trained dealer technicians have the
diagnostic equipment to test the
battery and ensure that the
connections and cables are
corrosion-free.
Belts
.Belts may need replacing if they
squeak or show signs of cracking or
splitting.
.Trained dealer technicians have
access to tools and equipment to
inspect the belts and recommend
adjustment or replacement when
necessary. Brakes
Brakes stop the vehicle and are crucial
to safe driving.
.Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
.Trained dealer technicians have
access to tools and equipment to
inspect the brakes and recommend
quality parts engineered for the
vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids
and Lubricants 0391 for GM approved
fluids.
.Engine oil and windshield washer
fluid levels should be checked at
every fuel fill.
.Instrument cluster lights may come
on to indicate that fluids may be
low and need to be filled. Hoses
Hoses transport fluids and should be
regularly inspected to ensure that
there are no cracks or leaks. With a
multi-point inspection, your dealer
can inspect the hoses and advise if
replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage. The
brake lamps need to be checked
periodically to ensure that they light
when braking.
.With a multi-point inspection, your
dealer can check the lamps and
note any concerns.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
390 SERVICE AND MAINTENANCE
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.Signs of wear may include steering
wheel vibration, bounce/sway while
braking, longer stopping distance,
or uneven tire wear.
.As part of the multi-point
inspection, trained dealer
technicians can visually inspect the
shocks and struts for signs of
leaking, blown seals, or damage, and
can advise when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel, and
can reduce the risk of tire failure.
.Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord or
fabric showing through the rubber;
cracks or cuts in the tread or
sidewall; or a bulge or split in
the tire.
.Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also provide
tire/wheel balancing services to
ensure smooth vehicle operation at
all speeds. Your dealer sells and
services name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care 0375 and
Exterior Care 0370.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver optimal
wear and performance.
.Signs that the alignment may need
to be adjusted include pulling,
improper vehicle handling,
or unusual tire wear.
.Your dealer has the required
equipment to ensure proper wheel
alignment. Windshield
For safety, appearance, and the best
viewing, keep the windshield clean
and clear.
.Signs of damage include scratches,
cracks, and chips.
.Trained dealer technicians can
inspect the windshield and
recommend proper replacement if
needed.
Wiper Blades
Wiper blades need to be cleaned and
kept in good condition to provide a
clear view.
.Signs of wear include streaking,
skipping across the windshield, and
worn or split rubber.
.Trained dealer technicians can
check the wiper blades and replace
them when needed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
396 TECHNICAL DATA
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System*
I2.0L L4 Engine 10.4 L 11.0 qt
I2.7L L4 Engine 13.0 L 13.7 qt
Engine Oil with Filter I2.0L L4 Engine 5.0 L 5.3 qt
I2.7L L4 Engine 5.7 L 6.0 qt
Fuel Tank 66.0 L 17.5 gal
Transfer Case –AWD 0.78 L 0.8 qt
Front Axle –AWD 0.4 L 0.42 qt

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CUSTOMER INFORMATION 403
General Motors of Canada also has a
Mobility program. See
cadillaccanada.ca, or call
1-800-GM-DRIVE (800-463-7483) for
details. TTY users call 1-800-263-3830.
Roadside Service
U.S.: 1-800-224-1400.
Canada: 1-800-882-1112.
Text Telephone (TTY) Users
(U.S. Only): 1-888-889-2438.
Service is available 24 hours a day,
365 days a year.
Calling for Service
When calling Roadside Service, 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 Service 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
Service 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 CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
404 CUSTOMER INFORMATION
.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
Service (U.S. Only)
Cadillac's exceptional Roadside Service
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 Service
.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
Service: Pre-authorization, original
detailed receipts, and a copy of the
repair orders are required. Once
authorization has been received, the
Roadside Service 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.
.Alternative Service: If assistance
cannot be provided right away, the
Roadside Service advisor may give
you permission to get local
emergency road service. You will
receive payment, up to $100, after
sending the original receipt to
Roadside Service. Mechanical
failures may be covered, however
any cost for parts and labor for
repairs not covered by the warranty
are the owner responsibility.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CUSTOMER INFORMATION 405
Scheduling Service
Appointments
When the vehicle requires warranty
service, contact your dealer and
request an appointment. By
scheduling a service appointment and
advising the service consultant of
your transportation needs, your dealer
can help minimize your
inconvenience.
If the vehicle cannot be scheduled
into the service department
immediately, keep driving it until it
can be scheduled for service, unless,
of course, the problem is safety
related. If it is, please call your
dealership, let them know this, and
ask for instructions.
If your dealer requests you to bring
the vehicle for service, you are urged
to do so as early in the work day as
possible to allow for same-day repair.
Courtesy Transportation
Program
To enhance your ownership
experience, we and our participating
dealers are proud to offer Courtesy
Transportation, a customer support
program for vehicles with the
Bumper-to-Bumper (Base Warranty
Coverage period in Canada), extended
powertrain, and/or hybrid-specific
warranties in both the U.S. and
Canada.
Several Courtesy Transportation
options are available to assist in
reducing inconvenience when
warranty repairs are required.
Courtesy Transportation is not a part
of the New Vehicle Limited Warranty.
A separate manual entitled“Limited
Warranty and Owner Assistance
Information ”furnished with each new
vehicle provides detailed warranty
coverage information.
Transportation Options
Warranty service can generally be
completed while you wait. However,
if you are unable to do so, your dealer
may offer the following transportation
options:
Shuttle Service
This includes one-way or round-trip
shuttle service within reasonable time
and distance parameters of your
dealer's area.
Public Transportation or Fuel
Reimbursement
If overnight warranty repairs are
needed, and public transportation is
used, the expense must be supported
by original receipts and within the
maximum amount allowed by GM.
If U.S. customers arrange their own
transportation, limited reimbursement
for reasonable fuel expenses may be
available. Claim amounts should
reflect actual costs and be supported
by original receipts. See your dealer
for information.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
406 CUSTOMER INFORMATION
Courtesy Rental Vehicle
For an overnight warranty repair, the
dealer may provide an available
courtesy rental vehicle or provide for
reimbursement of a rental vehicle.
Reimbursement is limited and must
be supported by original receipts as
well as a signed and completed rental
agreement and meet state/provincial,
local, and rental vehicle provider
requirements. Requirements vary and
may include minimum age
requirements, insurance coverage,
credit card, etc. Additional fees such
as fuel, rental vehicle insurance, taxes,
levies, usage fees, excessive mileage,
or rental usage beyond the completion
of the repair are also your
responsibility.
It may not be possible to provide a
like vehicle as a courtesy rental.
Additional Program Information
All program options, such as shuttle
service, may not be available at every
dealer. Contact your dealer for specific
availability.General Motors reserves the right to
unilaterally modify, change,
or discontinue Courtesy
Transportation at any time and to
resolve all questions of claim
eligibility pursuant to the terms and
conditions described herein at its sole
discretion.
Collision Damage Repair
If the vehicle is involved in a collision
and it is damaged, have the damage
repaired by a qualified technician
using the proper equipment and
quality replacement parts. Poorly
performed collision repairs diminish
the vehicle resale value, and safety
performance can be compromised in
subsequent collisions.
Collision Parts
Genuine GM Collision parts are new
parts made with the same materials
and construction methods as the parts
with which the vehicle was originally
built. Genuine GM Collision parts are
the best choice to ensure that the
vehicle's designed appearance,
durability, and safety are preserved.The use of Genuine GM parts can help
maintain the GM New Vehicle Limited
Warranty.
Recycled original equipment parts
may also be used for repair. These
parts are typically removed from
vehicles that were total losses in prior
crashes. In most cases, the parts being
recycled are from undamaged sections
of the vehicle. A recycled original
equipment GM part may be an
acceptable choice to maintain the
vehicle's originally designed
appearance and safety performance;
however, the history of these parts is
not known. Such parts are not covered
by the GM New Vehicle Limited
Warranty, and any related failures are
not covered by that warranty.
Aftermarket collision parts are also
available. These are made by
companies other than GM and may
not have been tested for the vehicle.
As a result, these parts may fit poorly,
exhibit premature durability/corrosion
problems, and may not perform
properly in subsequent collisions.
Aftermarket parts are not covered by
the GM New Vehicle Limited

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
410 CUSTOMER INFORMATION
or write to:
Transport Canada
Motor Vehicle Safety Directorate
Defect Investigations and Recalls
Division
80 Noel Street
Gatineau
,QC J8Z 0A1
Reporting Safety Defects
to General Motors
In addition to notifying NHTSA (or
Transport Canada) in a situation like
this, notify General Motors.
In the U.S., call 1-800-458-8006,
or write:
Cadillac Customer Assistance Center
Cadillac Motor Car Division
P.O. Box 33169
Detroit, MI 48232-5169In Canada, call 1-888-446-2000,
or write:
Canadian Cadillac Customer Care
Centre, Mail Code: CA1-163-005
General Motors of Canada Company
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
In Mexico, call 800-466-0805 or
800-212-234-5522.
In other Central America and
Caribbean Countries, call
52-555-901-2369.
Vehicle Data Recording
and Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven or used. For example,
the vehicle uses computer modules to
monitor and control engine and
transmission performance, to monitor
the conditions for airbag deployment
and deploy them in a crash, and,if equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store data
to help the dealer technician service
the vehicle or to help GM improve
safety or features. Some modules may
also store data about how the vehicle
is operated, such as rate of fuel
consumption or average speed. These
modules may retain personal
preferences, such as radio presets, seat
positions, and temperature settings.
Cybersecurity
GM collects information about the use
of your vehicle including operational
and safety related information. We
collect this information to provide,
evaluate, improve, and troubleshoot
our products and services and to
develop new products and services.
The protection of vehicle electronics
systems and customer data from
unauthorized outside electronic access
or control is important to GM. GM
maintains appropriate security
standards, practices, guidelines and