Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
402 VEHICLE CARE
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon and
attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See“Finish Care”previously in
this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Before using cleaners, read and follow
all safety instructions on the label.
While cleaning the interior, open the
doors and windows to get proper
ventilation. Newspapers or dark
garments can transfer color to the
vehicle’s interior.
Caution
Immediately remove cleaners, hand
lotions, sunscreen, and insect
repellent from all interior surfaces
or permanent damage may result.
Caution
Use cleaners specifically designed
for the surfaces being cleaned to
prevent permanent damage to the
vehicle. Apply all cleaners directly
to a cleaning cloth. Do not spray
cleaners on any switches or
controls.
When using liquid soap cleaners,
follow the directions on the specific
cleaner or soap solution for dilution
instructions.
Caution
To prevent damage:
.Never use a razor or any other
sharp object to remove soil from
any interior surface (Continued)
Caution (Continued)
.Never use a brush with stiff
bristles.
.Never rub any surface
aggressively or with too much
pressure.
.Do not get any exposed electrical
components wet.
.Do not use laundry detergents or
dishwashing soaps with
degreasers. Do not use solutions
that contain strong or
caustic soap.
.Do not heavily saturate the
upholstery when cleaning.
.Do not use solvents or cleaners
containing solvents.
.Do not use disinfecting wipes
that are scented or contain
bleach. Do not use wipes or
cleaners that show a color
transfer to the wipe or change
the appearance of the interior
surface when used.
(Continued)
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 403
Caution (Continued)
.Do not use scented or gel-type
hand sanitizers. If hand sanitizer
comes in contact with interior
surfaces of the vehicle, blot
immediately and clean with a
soft cloth dampened with a mild
soap and water solution.
Interior Glass
To clean, use a microfiber cloth fabric
dampened with water. Wipe droplets
left behind with a clean dry cloth.
If necessary, use a commercial glass
cleaner after cleaning with plain water.
Caution
To prevent scratching, never use
abrasive cleaners on automotive
glass. Abrasive cleaners or
aggressive cleaning may damage
the rear window defogger.
Cleaning the windshield with water
during the first three to six months of
ownership will reduce tendency to fog.
Speaker Covers
Vacuum around a speaker cover
gently, so that the speaker will not be
damaged. Clean spots with water and
mild soap.
Coated Moldings
Coated moldings should be cleaned.
.When lightly soiled, wipe with a
sponge or soft, lint-free cloth
dampened with water.
.When heavily soiled, use warm
soapy water.
Vinyl/Rubber
If equipped with vinyl floor and
rubber floor mats, use a soft cloth
and/or brush dampened with water to
remove dust and loose dirt. For more
thorough cleaning, use a mild soap
and water solution.
{Warning
Do not use cleaners that contain
silicone, wax-based products,
or cleaners that increase gloss on
vinyl/rubber floor and mats. These (Continued)
Warning (Continued)
cleaners can permanently change
the appearance and feel of the
vinyl/rubber and can make the floor
slippery. Your foot could slip while
operating the vehicle, and you
could lose control, resulting in a
crash. You or others could be
injured.
Fabric/Carpet/Suede
Start by vacuuming the surface using
a soft brush attachment. If a rotating
vacuum brush attachment is being
used, only use it on the floor carpet.
Before cleaning, gently remove as
much of the soil as possible:
.Gently blot liquids with a paper
towel. Continue blotting until no
more soil can be removed.
.For solid soils, remove as much as
possible prior to vacuuming.
To clean: 1. Saturate a clean, lint-free colorfast cloth with water. Microfiber cloth is
recommended to prevent lint
transfer to the fabric or carpet.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
404 VEHICLE CARE
2. Remove excess moisture by gentlywringing until water does not drip
from the cleaning cloth.
3. Start on the outside edge of the soil and gently rub toward the
center. Fold the cleaning cloth to a
clean area frequently to prevent
forcing the soil into the fabric.
4. Continue gently rubbing the soiled area until there is no longer any
color transfer from the soil to the
cleaning cloth.
5. If the soil is not completely removed, use a mild soap solution
followed only by plain water.
If the soil is not completely removed,
it may be necessary to use a
commercial upholstery cleaner or spot
lifter. Test a small hidden area for
colorfastness before using a
commercial upholstery cleaner or spot
lifter. If ring formation occurs, clean
the entire fabric or carpet.
After cleaning, use a paper towel to
blot excess moisture.Cleaning High Gloss Surfaces
and Vehicle Information and
Radio Displays
Use a microfiber cloth on high gloss
surfaces or vehicle displays. First, use
a soft bristle brush to remove dirt that
can scratch the surface. Then gently
clean by rubbing with a microfiber
cloth. Never use window cleaners or
solvents. Periodically hand wash the
microfiber cloth separately, using mild
soap. Do not use bleach or fabric
softener. Rinse thoroughly and air dry
before next use.
Caution
Do not attach a device with a
suction cup to the display. This may
cause damage and would not be
covered by the vehicle warranty.
Instrument Panel, Leather, Vinyl,
Other Plastic Surfaces, Low
Gloss Paint Surfaces, and
Natural Open Pore Wood
Surfaces
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Use a soft
microfiber cloth dampened with water
to remove dust and loose dirt. For a
more thorough cleaning, use a soft
microfiber cloth dampened with a
mild soap and water solution.
Caution
Soaking or saturating leather,
especially perforated leather, as well
as other interior surfaces, may
cause permanent damage. Wipe
excess moisture from these surfaces
after cleaning and allow them to
dry naturally. Never use heat,
steam, or spot removers. Do not use
liquids that contain alcohol or
solvents on leather seats. Do not
use cleaners that contain silicone or
wax-based products. Cleaners (Continued)
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
412 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Normal
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0376.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0336. (4)
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 transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(5) Or every five years, whichever
comes first. See Cooling System0338.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0348.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0350.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0351.
(10) Replace air conditioning
desiccant every seven years.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
414 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Severe
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0376.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0336. (4)
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 transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(5) Or every five years, whichever
comes first. See Cooling System0338.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0348.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0350.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0351.
(10) Replace air conditioning
desiccant every seven years.Special Application
Services
.Severe Commercial Use Vehicles
Only: Lubricate chassis components
every oil change.
.Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care0397.
Additional Maintenance
and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer
perform these services —their trained
dealer technicians know your vehicle
best. Your dealer can also perform a
thorough assessment with a
multi-point inspection to recommend
when your vehicle may need
attention.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INDEX 459
Power (cont'd)Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Pregnancy, Using Seat Belts . . . . . . . . . 47
Privacy Vehicle Data Recording . . . . . . . . . . 439
Problems with Route Guidance . . . . 163
Program Courtesy Transportation . . . . . . . . . 434
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . 312
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . .349, 390, Back Cover
Publication Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . 437
R
RadioHD Radio Technology . . . . . . . . . . . . 145
Radio Data System (RDS) . . . . . . . . . . 145
Radio Frequency Statement . . . . . . . . 438
Radio Reception . . . . . . . . . . . . . . . . . . . . 146
Radios AM-FM Radio . . . . . . . . . . . . . . . . . . . . . 142
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Reading Lamps . . . . . . . . . . . . . . . . . . . . . 133
Rear Cross Traffic Alert System . . . 300
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Rear Vision Camera (RVC) . . . . . . . . . 295
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . 25
Automatic Dimming . . . . . . . . . . . . . . . 25
Reclining Seatbacks . . . . . . . . . . . . . . . . . 32
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Recommended
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . 417
Records
Maintenance . . . . . . . . . . . . . . . . . . . . . . 421
Recreational Vehicle Towing . . . . . . . 397
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . 13
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Maintenance . . . . . . . . . . . . . . . . . . . . . . 418
Replacing Airbag System . . . . . . . . . . . . 59
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . 73
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . . . . . . . 48 Reporting Safety Defects
Canadian Government . . . . . . . . . . . . 438
General Motors . . . . . . . . . . . . . . . . . . . 439
U.S. Government . . . . . . . . . . . . . . . . . . 438
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . 65
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . . . . 237
Reverse Automatic Braking . . . . . . . . 299
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . 25
Ride Control Systems Enhanced TractionSystem (ETS) . . . . . . . . . . . . . . . . . . . . 266
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . 224
Roadside Service . . . . . . . . . . . . . . . . . . . . 432
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 376
Routing, Engine Drive Belt . . . . . . . . . 427
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . 364
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
462 INDEX
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Turn and Lane-Change Signals . . . . 131
U
Umbrella Storage . . . . . . . . . . . . . . . . . . . . 80
Uniform Tire Quality Grading . . . . . . 380
Universal Remote System . . . . . . . . . . 125Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Programming . . . . . . . . . . . . . . . . . . . . . . 125
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Using the Navigation System . . . . . . 151
Using the System . . . . . . . . . . . . . . . . . . . 139
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . 20
Automatic Hold Light . . . . . . . . . . . . 103
Canadian Owners . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
IdentificationNumber (VIN) . . . . . . . . . . . . . 422, 423
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 228
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Personalization . . . . . . . . . . . . . . . . . . . 120
Remote Start . . . . . . . . . . . . . . . . . . . . . . . 13 Vehicle (cont'd)
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Speed Messages . . . . . . . . . . . . . . . . . . . 120
Towing . . . . . . . . . . . . . . . . . . . . . . 393, 395
Vehicle Ahead Indicator . . . . . . . . . . . . 104
Vehicle Care Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . 390
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 370
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Vehicle Hold
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 256
Vehicle Hold (AVH) Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 256
Vehicle Positioning . . . . . . . . . . . . . . . . . 163
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 207
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Voice Recognition . . . . . . . . . . . . . . . . . . 164
W
Warning
Brake System Light . . . . . . . . . . . . . . . 101
Caution and Danger . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Warnings
Hazard Flashers . . . . . . . . . . . . . . . . . . . 131
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 343
Wheels Alignment and Tire Balance . . . . . 382
Different Size . . . . . . . . . . . . . . . . . . . . . . 380
Replacement . . . . . . . . . . . . . . . . . . . . . . 382
When It Is Time for New Tires . . . . 378
Where to Put the Restraint . . . . . . . . . 65
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 351
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 83
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 364
Wiper Blade Replacement . . . . . . . . . . 350
Wireless Charging . . . . . . . . . . . . . . . . . . . 86