check engine light CADILLAC CT5 2020 User Guide

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
DRIVING AND OPERATING 157
these types of driving conditions and
avoid driving through large puddles
and deep-standing or flowing water.
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick
stop and could cause pulling to one
side. You could lose control of the
vehicle.
After driving through a large puddle
of water or a car/vehicle wash,
lightly apply the brake pedal until
the brakes work normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be very
cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water can
build up under the vehicle's tires so
they actually ride on the water. This
can happen if the road is wet enough
and you are going fast enough. When
the vehicle is hydroplaning, it has
little or no contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution.
. Keep windshield wiping equipment
in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper tread
depth. See Tires0272.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving on
flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the vehicle
on a long downhill slope can cause
brake overheating, can reduce brake
performance, and could result in a
loss of braking. Shift the
transmission to a lower gear to let
the engine assist the brakes on a
steep downhill slope.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
184 DRIVING AND OPERATING
If cruise control is being used and TCS
or StabiliTrak/ESC begins to limit
wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road conditions
allow.
Both systems come on automatically
when the vehicle is started and begins
to move. The systems may be heard or
felt while they are operating or while
performing diagnostic checks. This is
normal and does not mean there is a
problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary to
turn TCS off if the vehicle gets stuck
in sand, mud, ice, or snow. SeeIf the
Vehicle Is Stuck 0159 and “Turning
the Systems Off and On ”later in this
section.The indicator light for both systems is
in the instrument cluster. This
light will:
. Flash when TCS is limiting
wheel spin.
. Flash when StabiliTrak/ESC is
activated.
. Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message may display in the
Driver Information Center (DIC), and
dcomes on and stays on to indicate
that the system is inactive and is not
assisting the driver in maintaining
control. The vehicle is safe to drive,
but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine. Drive the vehicle. if
dcomes on and
stays on, the vehicle may need more
time to diagnose the problem. If the
condition persists, see your dealer.
Turning the Systems Off and On
Caution
Do not repeatedly brake or
accelerate heavily when TCS is off.
The vehicle driveline could be
damaged.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
236 DRIVING AND OPERATING
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 Tires0272 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.
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.
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. See
Malfunction Indicator
Lamp (Check Engine Light) 0108.
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 CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
238 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 239
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 239
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 240
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 240
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 240
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 243
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 246
Engine Oil Life System . . . . . . . . . . . 248
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Engine Air Cleaner/Filter . . . . . . . . . 250
Cooling System . . . . . . . . . . . . . . . . . . . 251
Engine Overheating . . . . . . . . . . . . . . 256
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 257
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 258
Battery - North America . . . . . . . . . 259
All-Wheel Drive . . . . . . . . . . . . . . . . . . 260 Starter Switch Check . . . . . . . . . . . . . 260
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 261
Wiper Blade Replacement . . . . . . . 261
Windshield Replacement . . . . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 263
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 264
Electrical System
Electrical System Overload . . . . . . 264
Fuses and Circuit Breakers . . . . . . 265
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Instrument Panel Fuse Block . . . . 267
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
All-Season Tires . . . . . . . . . . . . . . . . . . 273
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 273
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 273
Self-Sealing Tires . . . . . . . . . . . . . . . . . 274
Low-Profile Tires . . . . . . . . . . . . . . . . . 274
Summer Tires . . . . . . . . . . . . . . . . . . . . 275
Tire Sidewall Labeling . . . . . . . . . . . 275
Tire Designations . . . . . . . . . . . . . . . . . 276 Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 277
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 280
Tire Pressure Monitor System . . . 281
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 282
Tire Inspection . . . . . . . . . . . . . . . . . . . 285
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 285
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Buying New Tires . . . . . . . . . . . . . . . . 287
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Uniform Tire Quality Grading . . . 289
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Wheel Replacement . . . . . . . . . . . . . . 290
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 291
If a Tire Goes Flat . . . . . . . . . . . . . . . . 291Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 292
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 295
Recreational Vehicle Towing . . . . 297

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
258 VEHICLE CARE
Caution (Continued)
occurs, which could damage
the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can be
heard all the time when the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will not
work well. That could lead to a
crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications. See Capacities and
Specifications 0321.
Brake pads should always be replaced
as complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does
not return to normal height, or if
there is a rapid increase in pedal
travel. This could be a sign that brake
service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement parts.
If this is not done, the brakes may not
work properly. The braking
performance expected can change in
many other ways if the wrong
replacement brake parts are installed
or if parts are improperly installed.
Brake Fluid
The brake master cylinder reservoir is
filled with GM approved DOT 3 brake
fluid as indicated on the reservoir cap.
See Engine Compartment Overview
0 243 for the location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on a level
surface, the brake fluid level should be
between the minimum and maximum
marks on the brake fluid reservoir.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
314 SERVICE AND MAINTENANCE
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.
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 0317 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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
INDEX 347
IndexA
Accessories and Modifications . . . . . 240
Accessory Power . . . . . . . . . . . . . . . . . . . . 169
Active Fuel Management . . . . . . . . . . . 172
Adaptive Cruise Control . . . . . . . . . . . . 195
Add-On Electrical Equipment . . . . . . 236
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . 42
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 43
Air Cleaner/Filter, Engine . . . . . . . . . . 250
Air Conditioning . . . . . . . . . . . . . . . . . . . . 142
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . . . . . 147
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
How Does an Airbag Restrain? . . . . . 63
Passenger Sensing System . . . . . . . . . 65
What Makes an Airbag Inflate? . . . . 63
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 63
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Where Are the Airbags? . . . . . . . . . . . . 60 Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Passenger Status Indicator . . . . . . . 107
Readiness Light . . . . . . . . . . . . . . . . . . . 106
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
System Check . . . . . . . . . . . . . . . . . . . . . . . 59
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 25
Alert
Lane Change . . . . . . . . . . . . . . . . . . . . . . 220
Rear Pedestrian . . . . . . . . . . . . . . . . . . . 213
Side Blind Zone (SBZA) . . . . . . . . . . 220
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 273
All-Wheel Drive . . . . . . . . . . . . . . . .179, 260
Antilock Brake System (ABS) . . . . . . 180 Warning Light . . . . . . . . . . . . . . . . . . . . 111
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Assistance Systems for Driving . . . . 214
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 205
Auto Stop
Stop/Start System . . . . . . . . . . . . . . . . 166
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . 31

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
348 INDEX
Automatic (cont'd)Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Emergency Braking (AEB) . . . . . . . . 216
Headlamp System . . . . . . . . . . . . . . . . 136
Transmission . . . . . . . . . . . . . . . . . . . . . . 173
Transmission Fluid . . . . . . . . . . . . . . . 249
Vehicle Hold Light . . . . . . . . . . . . . . . . 111
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . 178
Automatic Vehicle Hold (AVH) . . . . 182
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Load Management . . . . . . . . . . . . . . . . 139
Power Protection . . . . . . . . . . . . . . . . . . 140
Battery - North America . . . . . .259, 292
Blade Replacement, Wiper . . . . . . . . . 261
Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 180
Parking, Electric . . . . . . . . . . . . . . . . . . 180
System Warning Light . . . . . . . . . . . . 110
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Braking (cont'd)
Automatic Emergency (AEB) . . . . . 216
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 218
Break-In, New Vehicle . . . . . . . . . . . . . . 163
Bulb Replacement Headlamp Aiming . . . . . . . . . . . . . . . . 263
Buying New Tires . . . . . . . . . . . . . . . . . . . 287
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 240
California Proposition 65 Warning . . . . . . . . . . . . .239, 259, 292, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2
Capacities and Specifications . . . . . . 321
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 172
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Winter Driving . . . . . . . . . . . . . . . . . . . . 158
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Caution, Danger, and Warning . . . . . . . . 3
Center Console Storage . . . . . . . . . . . . . . 91
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 291 Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Charging System Light . . . . . . . . . . . . . 107
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 108
Child Restraints
Infants and Young Children . . . . . . . . 72
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Older Children . . . . . . . . . . . . . . . . . . . . . . 70
Securing . . . . . . . . . . . . . . . . . . . . . . . . .84, 86
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 265
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 297
Interior Care . . . . . . . . . . . . . . . . . . . . . . 302
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . 142
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Cluster, Instrument . . . . . . . . . . . . . . . . . 101
Collision Damage Repair . . . . . . . . . . . 331
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Competitive Driving Mode . . . . . . . . . 191
Composite Materials . . . . . . . . . . . . . . . . 163

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
350 INDEX
E
Electric Brake Boost . . . . . . . . . . . . . . . . 180
Electric Parking Brake . . . . . . . . . . . . . . 180
Electric Parking Brake Light . . . . . . . 110
Electrical Equipment, Add-On . . . . . 236
Electrical SystemEngine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 267
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 250
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 108
Compartment Overview . . . . . . . . . . 243
Coolant Temperature Gauge . . . . . 105
Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . 113
Cooling System . . . . . . . . . . . . . . . . . . . 251
Drive Belt Routing . . . . . . . . . . . . . . . . 323
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Oil Life System . . . . . . . . . . . . . . . . . . . . 248 Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . . . . . . 115
Overheating . . . . . . . . . . . . . . . . . . . . . . . 256
Power Messages . . . . . . . . . . . . . . . . . . 123
Running While Parked . . . . . . . . . . . 173
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 139
Equipment, Towing . . . . . . . . . . . . . . . . . 235
Event Data Recorders . . . . . . . . . . . . . . 336
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 139
Extended Parking . . . . . . . . . . . . . . . . . . . 172
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 57
Exterior Lamp Controls . . . . . . . . . . . . 133
Exterior Lamps Off Reminder . . . . . . 135
Exterior Lighting Battery Saver . . . . 140
F
Filter,
Engine Air Cleaner . . . . . . . . . . . . . . . . 250
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 135
Flashers, Hazard Warning . . . . . . . . . . 136
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Fluid Automatic Transmission . . . . . . . . . 249
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 30 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Front Seats
Heated and Ventilated . . . . . . . . . . . . . 46
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Economy, Driving for Better . . . . . 149
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 229
Filling the Tank . . . . . . . . . . . . . . . . . . . 228
Foreign Countries . . . . . . . . . . . . . . . . . 227
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Low Fuel Warning Light . . . . . . . . . 115
Management, Active . . . . . . . . . . . . . . 172
Prohibited Fuels . . . . . . . . . . . . . . . . . . 227
Recommended . . . . . . . . . . . . . . . 226, 227
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 267
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
352 INDEX
Lamps (cont'd)Exterior Controls . . . . . . . . . . . . . . . . . . 133
Exterior Lamps Off Reminder . . . . 135
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 108
On Reminder . . . . . . . . . . . . . . . . . . . . . . 116
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Lane Change Alert (LCA) . . . . . . . . . . . 220
Lane Keep Assist (LKA) . . . . . . . . . . . . 222
Lane Keep Assist Light . . . . . . . . . . . . . 111
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 53
LATCH System Replacing Parts after a Crash . . . . . . 84
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . . . . 77
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 264
Light Performance Shifting . . . . . . . . . . . . . 111
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Illumination Control . . . . . . . . . . . . . . 137
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Lights
Airbag Readiness . . . . . . . . . . . . . . . . . 106 Lights (cont'd)
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 111
Automatic Vehicle Hold . . . . . . . . . . 111
Brake System Warning . . . . . . . . . . . 110
Charging System . . . . . . . . . . . . . . . . . . 107
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 108
Cruise Control . . . . . . . . . . . . . . . . . . . . . 116
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Driver Mode Control . . . . . . . . . . . . . . 114
Electric Parking Brake . . . . . . . . . . . . 110
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 113
Engine Oil Pressure . . . . . . . . . . . . . . . 115
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 135
High-Beam On . . . . . . . . . . . . . . . . . . . . 116
High/Low Beam Changer . . . . . . . . . 135
Lane Keep Assist . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning . . . . . . . . . . . . . . . . 115
Seat Belt Reminders . . . . . . . . . . . . . . 105
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Service Electric Parking Brake . . . 110
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 113
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 114
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 113
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 112 Limited-Slip Differential . . . . . . . . . . . . 193
Lock
Steering Column . . . . . . . . . . . . . . . . . . . . 27
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 19
Delayed Locking . . . . . . . . . . . . . . . . . . . . 19
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lockout Protection . . . . . . . . . . . . . . . . . 19
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 152
Low Fuel Warning Light . . . . . . . . . . . 115
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 274
Lower Anchors and Tethers for
Children (LATCH System) . . . . . . . . . 77
Lumbar Adjustment . . . . . . . . . . . . . . . . . 42
Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 42
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 314
Maintenance Schedule . . . . . . . . . . . . . 308 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 317
Malfunction Indicator Lamp . . . . . . . 108
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 178