Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
VEHICLE CARE 291
Electrical System
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is too
heavy, the circuit breaker opens and
closes, protecting the circuit until the
current load returns to normal or the
problem is fixed. This greatly reduces
the chance of circuit overload and fire
caused by electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one of
the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be borrowed.
Choose some feature of the vehicle
that is not needed to use and replace
it as soon as possible.
Headlamp Wiring
An electrical overload may cause the
lamps to go on and off, or in some
cases to remain off. Have the
headlamp wiring checked right away if
the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop. Wiper function is
available immediately after the wiper
switch is set to off, and back to on.
To protect the wiper motor from
overheating, the wipers may slow
down when the windshield is dry for a
long period of time. If a period of dry
operation, or little moisture, exceeds
10 minutes, the wipers may switch to
intermittent operation, and remain
there. When moisture is again
detected on the windshield, wiper
operation will return to the operator
selected speed.
Although the circuit is protected from
electrical overload, overload due to
heavy snow or ice may cause wiperlinkage damage. Always clear ice and
heavy snow from the windshield
before using the windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by electrical
problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit breakers.
Use of an oversized fuse or circuit
breaker can result in a vehicle fire.
You and others could be seriously
injured or killed.
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
VEHICLE CARE 293
FusesUsage
1 –
2 – Fuses
Usage
3 Passenger motorized seat belt Fuses
Usage
4 –
5 –
6 Driver power seat
7 –
9 –
10 –
11 –
12 –
13 Passenger power seat
14 –
15 –
16 –
17 Headlamp washer
18 –
19 Antilock brake system pump
20 Antilock brake system valve
21 –
22 Driver motorized seat belt
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
294 VEHICLE CARE
FusesUsage
26 –
27 –/Heated seat 2
28 –/Reverse lock out
29 Adaptive forward lighting, Automatic
headlamp leveling/
Pedestrian protection
30 –
31 Passenger window switch
32 –
33 Sunroof
34 Front wiper
35 Steering column lock
36 Rear bussed electrical center/Ignition
37 –/Malfunction
Indicator Lamp/
Ignition
38 Aeroshutter
39 O2 sensor/Emissions Fuses
Usage
40 Ignition coil even/O2 sensor
41 Ignition coil odd
42 Engine control module
43 –
44 –
45 Washer
48 Instrument panel/ Body/Ignition
49 Fuel system control module/Ignition
50 Heated steering wheel
51 Engine control module/Ignition
52 Transmission control module/Ignition
53 Coolant pump
55 –
56 Transmission control module Fuses
Usage
64 Adaptive headlamp leveling
65 Left HID headlamp
66 Right HID headlamp
67 Left/Right high-beam headlamp
68 Headlamp leveling motor
69 Horn
71 Cooling fan
72 Starter 2
73 Brake vacuum pump
74 Starter 1
75 Air conditioning clutch
76 –
Relays Usage
8 Headlamp washer
23 Wiper control
24 Wiper speed
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 295
RelaysUsage
25 Engine control module
46 Rear washer
47 Front washer
54 Coolant pump
57 Low-beam headlamp relay
58 High-beam headlamp
59 Run/Crank
60 Starter 2
61 Vacuum pump
62 Starter 1
63 Air conditioning control
70 HornInstrument Panel Fuse
Block
The instrument panel fuse block is in
the end of the driver side of the
instrument panel.
To access the fuses, remove the end
panel by gently prying with a plastic
tool near each clip, beginning at the
point shown.
To install the end cover, insert the
tabs on the back of the cover into the
slots in the instrument panel at the
points shown. Align the clips with the
slots in the instrument panel, and
press the cover into place.
The vehicle may not be equipped with
all of the fuses and relays shown.
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 319
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel leaks
air, replace it. Some aluminum wheels
can be repaired. See your dealer if any
of these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the same
load-carrying capacity, diameter,
width, offset, and be mounted the
same way as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor System
(TPMS) sensors with new GM original
equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel nuts
can be dangerous. It could affect
the braking and handling of the(Continued)
Warning (Continued)
vehicle. Tires can lose air, and
cause loss of control, causing a
crash. Always use the correct wheel,
wheel bolts, and wheel nuts for
replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or odometer
calibration, headlamp aim, bumper
height, vehicle ground clearance,
and tire or tire chain clearance to
the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one
is dangerous. How it has been used
or how far it has been driven may(Continued)
Warning (Continued)
be unknown. It could fail suddenly
and cause a crash. When replacing
wheels, use a new GM original
equipment wheel.
Tire Chains
{Warning
If the vehicle has P245/40R18,
245/40R18, 275/35R18, 255/35R19,
265/35ZR19, or 295/30ZR19 size
tires, do not use tire chains. There
is not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle parts.
The area damaged by the tire
chains could cause loss of control
and a crash. Use another type of
traction device only if its
manufacturer recommends it for
the vehicle's tire size combination(Continued)
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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352 SERVICE AND MAINTENANCE
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 0354 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. 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.
Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/8/18
390 INDEX
Auto StopStop/Start System . . . . . . . . . . . . . . . . 196
Auto Stop Mode . . . . . . . . . . . . . . . . . . . . 136
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . 47
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Forward Braking . . . . . . . . . . . . . . . . . . 237
Headlamp System . . . . . . . . . . . . . . . . 157
Transmission . . . . . . . . . . . . . . . . . . . . . . 201
Transmission Fluid . . . . . . . . . . . . . . . 272
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . . . . . 203
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Load Management . . . . . . . . . . . . . . . . 160
Power Protection . . . . . . . . . . . . . . . . . . 161
Battery - North America . . . . . .283, 329
Blade Replacement, Wiper . . . . . . . . . 286
Boost Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 124
Brake Parking, Electric . . . . . . . . . . . . . . . . . . 205
System Warning Light . . . . . . . . . . . . 131
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281 Brakes (cont'd)
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Automatic Forward . . . . . . . . . . . . . . . 237
Break-In, New Vehicle . . . . . . . . . . . . . . 192
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . . . . . 289
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 289
Headlamp Aiming . . . . . . . . . . . . . . . . 288
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 289
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . . . . . 289
License Plate Lamps . . . . . . . . . . . . . . 290
Buying New Tires . . . . . . . . . . . . . . . . . . . 315
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 113
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 259
California Proposition 65 Warning . . . . . . . . . . . . .258, 283, 329,
Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2
Capacities and Specifications . . . . . . 359 Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . . . . . 200
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Winter Driving . . . . . . . . . . . . . . . . . . . . 187
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . 108
Caution, Danger, and Warning . . . . . . . . 2
Center Console Storage . . . . . . . . . . . . . 107
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 319
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Charging System Light . . . . . . . . . . . . . 128
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 129
Child Restraints
Infants and Young Children . . . . . . . . 90
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Older Children . . . . . . . . . . . . . . . . . . . . . . 88
Securing . . . . . . . . . . . . . . . . . . . . . . 101, 103
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 291
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 335
Interior Care . . . . . . . . . . . . . . . . . . . . . . 339
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . 168
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INDEX 393
Fuel (cont'd)Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Low Fuel Warning Light . . . . . . . . . 135
Prohibited Fuels . . . . . . . . . . . . . . . . . . 245
Recommended . . . . . . . . . . . . . . . . . . . . 245
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Fuses and Circuit Breakers . . . . . . . 291
Instrument Panel Fuse Block . . . . 295
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
G
Garage Door Opener . . . . . . . . . . . . . . . . 150Programming . . . . . . . . . . . . . . . . . . . . . . 150
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 287
Gauges Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Engine Coolant Temperature . . . . 125
Engine Oil Temperature . . . . . . . . . . 125
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Speedometer . . . . . . . . . . . . . . . . . . . . . . 123
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 123
Trip Odometer . . . . . . . . . . . . . . . . . . . . 123 Gauges (cont'd)
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 118
General Information
Service and Maintenance . . . . . . . . 343
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 258
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 289
Hazard Warning Flashers . . . . . . . . . . 158
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 55
Head-up Display . . . . . . . . . . . . . . . . . . . . 141
HeadlampsAdaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . . . . . 157
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 157
Bulb Replacement . . . . . . . . . . . . . . . . 289
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 156
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 156
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . 289
High-Beam On Light . . . . . . . . . . . . . . 136 Headlamps (cont'd)
High/Low Beam Changer . . . . . . . . . 156
Lamps On Reminder . . . . . . . . . . . . . . 137
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Steering Wheel . . . . . . . . . . . . . . . . . . . . 110
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 46
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Heating . . . . . . . . . . . . . . . . . . . . . . . . .168, 173
High-Beam On Light . . . . . . . . . . . . . . . . 136
High-Speed Operation . . . . . . . . . . . . . . 308
Hill and Mountain Roads . . . . . . . . . . 186
Hill Start Assist (HSA) . . . . . . . . . . . . . 207
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
How to Wear Seat Belts Properly . . . 69
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . .168, 173
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 193
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 132
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 90