towing CADILLAC CT4 2020 Owner's Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
228 DRIVING AND OPERATING
after towing at high altitude on steep
uphill grades, the vehicle could show
signs similar to engine overheating. To
avoid this, let the engine run,
preferably on level ground, with the
transmission in P (Park) for a few
minutes before turning the engine off.
If the overheat warning comes on, see
Engine Overheating0250.
Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and trailer
on a level surface when possible.
When parking your vehicle and your
trailer on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn the
wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in
place, gradually release the brake
pedal to allow the chocks to
absorb the load of the trailer.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal. .Start the engine.
. Shift into a gear.
. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service more often
when used to tow trailers. See
Maintenance Schedule 0303. It is
especially important to check the automatic transmission fluid, engine
oil, axle lubricant, belts, cooling
system, and brake system before and
during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling when Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
0 250.
Trailer Towing
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer for
important information about
towing a trailer with the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 229
Trailer Weight
{Warning
Never exceed the towing capacity
for your vehicle.
Safe trailering requires monitoring the
weight, speed, altitude, road grades,
outside temperature, dimensions of
the front of the trailer, and how
frequently the vehicle is used to tow a
trailer.
Before towing a trailer, always
separately weigh:
. the total weight on the vehicle's
tires.
. the trailer.
. the trailer tongue.
{Warning
You and others could be seriously
injured or killed if the trailer is too
heavy or the trailer brakes are
inadequate for the load. The vehicle
(Continued)
Warning (Continued)
may be damaged, and the repairs
would not be covered by the vehicle
warranty.
Only tow a trailer if all the steps in
this section have been followed. Ask
your dealer for advice and
information about towing a trailer.
Gross Vehicle Weight
Rating (GVWR)
For information about the vehicle's
maximum load capacity, see Vehicle
Load Limits 0154. When calculating
the GVWR with a trailer attached, the
trailer tongue weight must be
included as part of the weight the
vehicle is carrying.
Maximum Trailer Weight
The trailer should never weigh more
than 454 kg (1,000 lb). The maximum
allowable weight of the trailer may be
lower based on the weight of the
passengers and cargo in your trailer. The maximum trailer weight rating is
calculated assuming only the driver is
in the tow vehicle and it has all the
required trailering equipment. The
weight of additional optional
equipment, passengers, and cargo in
the tow vehicle must be subtracted
from the maximum trailer weight.
Trailer Load Balance
The correct trailer load balance must
be maintained to ensure trailer
stability. Incorrect load balance is a
leading cause of trailer sway.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
230 DRIVING AND OPERATING
The trailer tongue weight (1) should
be 10–15% of the loaded trailer
weight (2). Some specific trailer types,
such as boat trailers, fall outside of
this range. Always refer to the trailer
owner’s manual for the recommended
trailer tongue weight for each trailer.
Never exceed the maximum loads for
your vehicle, hitch, and trailer.
After loading the trailer, separately
weigh the trailer and then the trailer
tongue and calculate the trailer load
balance percentage to see if the
weights and distribution are
appropriate for your vehicle. If the
trailer weight is too high, it may be
possible to transfer some of the cargo
into your vehicle. If the trailer tongue
weight is too high or too low, it may
be possible to rearrange some of the
cargo inside of the trailer.
Do not exceed the maximum
allowable tongue weight for your
vehicle. Use the shortest hitch
extension available to position the
hitch ball closer to your vehicle. This
will help reduce the effect of the
trailer tongue weight on the trailer
hitch and the rear axle.If a cargo carrier is used in the trailer
hitch receiver, choose a carrier that
positions the load as close to the
vehicle as possible. Make sure the
total weight, including the carrier, is
no more than half of the maximum
allowable tongue weight for the
vehicle or 227 kg (500 lb), whichever
is less.
Ask your dealer for trailering
information or assistance.
Towing Equipment
Hitches
Always use the correct hitch
equipment for your vehicle.
Crosswinds, large trucks going by, and
rough roads can affect the trailer and
the hitch.
Never attach rental hitches or other
bumper-type hitches. Only use
frame-mounted hitches that do not
attach to the bumper.
Always seal any holes in your vehicle
if the trailer hitch removed. If not
sealed, dirt, water, and carbon
monoxide (CO) from the exhaust may
enter your vehicle. See
Engine Exhaust
0 168.
Consider using mechanical sway
controls with any trailer. Ask a
trailering professional about sway
controls or refer to the trailer
manufacturer's recommendations and
instructions.
Tires
. Do not tow a trailer while using a
compact spare tire on the vehicle.
. Tires must be properly inflated to
support loads while towing a
trailer. See Tires0267 for
instructions on proper tire
inflation.
Safety Chains
Always attach chains between the
vehicle and the trailer, and attach the
chains to the holes on the trailer hitch
platform. Instructions about safety
chains may be provided by the hitch
manufacturer or by the trailer
manufacturer.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 231
Cross the safety chains under the
tongue of the trailer to help prevent
the tongue from contacting the road if
it becomes separated from the hitch.
Always leave just enough slack so the
combination can turn. Never allow
safety chains to drag on the ground.
Trailer Brakes
Loaded trailers over 450 kg (1,000 lb)
must be equipped with brake systems
and with brakes for each axle. Trailer
braking equipment conforming to
Canadian Standards Association (CSA)
requirement CAN3-D313, or its
equivalent, is recommended.
State or local regulations may require
trailers to have their own braking
system if the loaded weight of the
trailer exceeds certain minimums that
can vary from state to state. Read and
follow the instructions for the trailer
brakes so they are installed, adjusted,
and maintained properly. Never
attempt to tap into your vehicle's
hydraulic brake system. If you do,
both the vehicle anti-lock brakes and
the trailer brakes may not function,
which could result in a crash.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each trip,
and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing lanes,
or stopping. When towing a trailer,
the arrows on the instrument cluster
will illuminate even if the trailer is not
properly connected or the bulbs are
burned out.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light) 0100.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle systems.
This could affect vehicle operation
and cause a crash. Such devices
may also access information stored
in the vehicle’s systems.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
234 VEHICLE CARE
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 291
Recreational Vehicle Towing . . . . 292
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 293
Interior Care . . . . . . . . . . . . . . . . . . . . . . 297
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 300
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM
parts and GM-trained and supported
service people.
Genuine GM parts have one of these
marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including this
one, as well as many of its service
parts and fluids, contain and/or
emit chemicals known to the State
of California to cause cancer and
birth defects or other reproductive
harm. Engine exhaust, many parts
and systems, many fluids, and
some component wear by-products
contain and/or emit these
chemicals. For more information go
to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0254 and
Jump Starting - North America 0288
and the back cover.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
VEHICLE CARE 291
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle and
removing the jumper cables, allow it
to idle for several minutes.Towing the Vehicle
Caution
Incorrectly towing a disabled
vehicle may cause damage. The
damage would not be covered by
the vehicle warranty. Do not lash or
hook to suspension components.
Use the proper straps around the
tires to secure the vehicle. Do not
drag a locked wheel/tire. Use tire
skates or dollies under any locked
wheel/tire while loading the vehicle.
Do not use a sling type lift to tow
the vehicle. This could damage the
vehicle.
Front Tow Eye
Caution
Improper use of the tow eye can
damage the vehicle. If equipped, use
the tow eye to load a disabled
vehicle onto a flatbed tow truck
from a flat road surface, or to move
the vehicle a short distance. Use
caution and low speeds. The
transmission must be
in (N) Neutral when moving the
vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
292 VEHICLE CARE
The vehicle is equipped with a tow
eye. Only use the tow eye to pull the
vehicle onto a flatbed car carrier from
a flat road surface. Do not use the tow
eye to pull the vehicle from snow,
mud, or sand. The tow eye is located
under the carpet in the trunk.
Carefully open the cover in the fascia
by using the small notch that conceals
the tow eye socket.
Install the tow eye into the socket and
turn it until it is fully tightened. When
the tow eye is removed, reinstall the
cover with the notch in the original
position.Rear Tow Eye
If equipped, carefully open the cover
by using the small notch that conceals
the rear tow eye socket. Install the
tow eye into the socket and turn it
until it is fully tightened. When the
tow eye is removed, reinstall the cover
with the notch in the original
position.
Recreational Vehicle
Towing
Caution
Dolly towing or dinghy towing the
vehicle may cause damage because
of reduced ground clearance.
Always put the vehicle on a flatbed
truck or trailer.
The vehicle was neither designed nor
intended to be towed with any of its
wheels on the ground. If the vehicle
must be towed, see Towing the Vehicle
0 291.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
326 CUSTOMER INFORMATION
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.
Scheduling Service
Appointments
When the vehicle requires warranty
service, contact your dealer and
request an appointment. By
scheduling a service appointment and

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
CUSTOMER INFORMATION 329
Insuring the Vehicle
Protect your investment in the GM
vehicle with comprehensive and
collision insurance coverage. There are
significant differences in the quality of
coverage afforded by various
insurance policy terms. Many
insurance policies provide reduced
protection to the GM vehicle by
limiting compensation for damage
repairs by using aftermarket collision
parts. Some insurance companies will
not specify aftermarket collision parts.
When purchasing insurance, we
recommend that you ensure that the
vehicle will be repaired with GM
original equipment collision parts.
If such insurance coverage is not
available from your current insurance
carrier, consider switching to another
insurance carrier.
If the vehicle is leased, the leasing
company may require you to have
insurance that ensures repairs with
Genuine GM Original Equipment
Manufacturer (OEM) parts or Genuine
Manufacturer replacement parts. Readthe lease carefully, as you may be
charged at the end of the lease for
poor quality repairs.
If a Crash Occurs
If there has been an injury, call
emergency services for help. Do not
leave the scene of a crash until all
matters have been taken care of. Move
the vehicle only if its position puts
you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information
to police and other parties involved in
the crash.
For emergency towing see
Roadside
Service 0325.
Gather the following information:
. Driver name, address, and
telephone number
. Driver license number
. Owner name, address, and
telephone number
. Vehicle license plate number
. Vehicle make, model, and
model year .
Vehicle Identification
Number (VIN)
. Insurance company and policy
number
. General description of the damage
to the other vehicle
Choose a reputable repair facility that
uses quality replacement parts. See
“Collision Parts ”earlier in this section.
If the airbag has inflated, see What
Will You See after an Airbag Inf lates?
0 56.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends that
you take an active role in its repair.
If you have a pre-determined repair
facility of choice, take the vehicle
there, or have it towed there. Specify
to the facility that any required
replacement collision parts be original
equipment parts, either new Genuine
GM parts or recycled original GM
parts. Remember, recycled parts will
not be covered by the GM vehicle
warranty.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
346 INDEX
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Competitive Driving Mode . . . . . . . . . 189
Composite Materials . . . . . . . . . . . . . . . . 157
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . 342
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 343
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 341
Connections Connected Services . . . . . . . . . . . . . . . 342
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Control of a Vehicle . . . . . . . . . . . . . . . . 144
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 25
Coolant Engine Temperature Gauge . . . . . . . . 97
Engine Temperature WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Cooling System . . . . . . . . . . . . . . . . . . . . . 246
Cornering Lamps . . . . . . . . . . . . . . . . . . . 129
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 130
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 192 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Cruise Control, Adaptive . . . . . . . . . . . 194
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Customer Assistance . . . . . . . . . . . . . . . 323
Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Text Telephone (TTY) Users . . . . . 323
Customer Information Publications Ordering
Information . . . . . . . . . . . . . . . . . . . . . . 330
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . 333
D
Damage Repair, Collision . . . . . . . . . . . 328
Danger, Warning, and Caution . . . . . . . . 3
Data Collection Infotainment System . . . . . . . . . . . . . 334
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Data Recorders, Event . . . . . . . . . . . . . . 333
Daytime Running Lamps (DRL) . . . 127
Defensive Driving . . . . . . . . . . . . . . . . . . . 143
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 18
Diagnostics Connected Services . . . . . . . . . . . . . . . 343
Differential, Limited-Slip . . . . . . . . . . . 191
Distracted Driving . . . . . . . . . . . . . . . . . . 143
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 130 Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 108
Delayed Locking . . . . . . . . . . . . . . . . . . . . 18
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive Belt Routing, Engine . . . . . . . . . 320
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 178, 255
Driver Assistance Systems . . . . . . . . . 203
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 109
Driver Mode Control . . . . . . . . . . . . . . . . 184
Driver Mode Control Light . . . . . . . . . 106
Driving Assistance Systems . . . . . . . . . . . . . . . 210
Better Fuel Economy . . . . . . . . . . . . . 142
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 225
Competitive . . . . . . . . . . . . . . . . . . . . . . . 189
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Hill and Mountain Roads . . . . . . . . 151
If the Vehicle is Stuck . . . . . . . . . . . . 153
Loss of Control . . . . . . . . . . . . . . . . . . . . 146
Off-Road Recovery . . . . . . . . . . . . . . . . 145
Track Events and Competitive . . . 146
Vehicle Load Limits . . . . . . . . . . . . . . 154
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 151