Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 335
6.2L V8 Engine
1. Windshield Washer Fluid Reservoir. See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Air Cleaner/Filter 0341. 4. Engine Oil Dipstick. See
Engine Oil
0 336.
5. Engine Cooling Fan (Out of View). See Cooling System 0343.
6. Engine Oil Fill Cap. See Engine Oil
0 336. 7. Remote Positive (+) Battery
Terminal. See Jump Starting - North
America 0394.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid 0352.
Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
340 VEHICLE CARE
Hydraulic Clutch
For vehicles with a manual
transmission, it is not necessary to
regularly check brake/clutch fluid
unless there is a leak suspected.
Adding fluid will not correct a leak.
A fluid loss in this system could
indicate a problem. Have the system
inspected and repaired.
When to Check and What to Use
The brake/hydraulic clutch fluid
reservoir cap has this symbol on it.
SeeEngine Compartment Overview
0 331 for reservoir location. The
common hydraulic clutch and brake
master cylinder fluid reservoir is filled
with brake fluid as indicated on the
reservoir cap. See Brake Fluid0352 for
brake fluid to use.
How to Check and Add Fluid
Visually check the brake/clutch fluid
reservoir to make sure the fluid level
is at the MIN (minimum) line on the
side of the reservoir. The brake/
hydraulic clutch fluid system should
be closed and sealed.
Do not remove the cap to check the
fluid level or to top-off the fluid level.
Remove the cap only when necessary
to add the proper fluid until the level
reaches the MIN line.
Engine Air Filter Life
System
If equipped, this feature provides the
engine air filter’s remaining life and
best timing for a change. The timing
to change an engine air filter depends
on driving and environmental
conditions.
When to Change the Engine Air
Filter
When the Driver Information Center
(DIC) displays a message to replace
the engine air filter at the next oil
change, follow this timing. When the DIC displays a message to
replace the engine air filter soon,
replace the engine air filter at the
earliest convenience.
The system must be reset after the
engine air filter is changed.
If the DIC displays a message to check
the engine air filter system, see your
dealer.
How to Reset the Engine Air
Filter Life System
To reset:
1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See Driver Information Center
(DIC) (Base Level) 0116 or
Driver Information Center (DIC)
(Uplevel) 0119.
3. Press
Ton the steering wheel,
or press the trip odometer reset
stem if the vehicle does not have
DIC controls, to move to the Reset/
Disable display area. Select Reset,
then press the thumbwheel or
press the reset stem for several
seconds.
Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 353
The brake/clutch master cylinder
reservoir is filled with GM approved
DOT 4 brake fluid as indicated on the
reservoir cap. SeeEngine Compartment
Overview 0331 for the location of the
reservoir.
Checking Brake Fluid
Place the vehicle in P (Park) or
Neutral with the parking brake applied
if equipped with a manual
transmission. On a level surface, the
brake fluid level should be between
the minimum and maximum marks
on the brake fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
.Normal brake lining wear. When
new linings are installed, the fluid
level goes back up.
.A fluid leak in the brake/clutch
hydraulic system. Have the brake/
clutch hydraulic system fixed. With
a leak, the brakes will not work well.
Always clean the brake fluid reservoir
cap and the area around the cap
before removing it. Do not top off the brake/clutch fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are installed.
Add or remove fluid, as necessary,
only when work is done on the brake/
clutch hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You or
others could be burned, and the
vehicle could be damaged. Add
brake fluid only when work is done
on the brake/clutch hydraulic
system.
When the brake/clutch fluid falls to a
low level, the brake warning light
comes on. See Brake System Warning
Light 0108.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid at
the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0410. What to Add
Use only GM approved DOT 4 brake
fluid from a clean, sealed container.
See
Recommended Fluids and
Lubricants 0420.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the paint
finish can be damaged. Immediately
wash off any painted surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove the
cap and do not add fluid.
Refer to the replacement number
shown on the original battery label
when a new battery is needed.
Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 361
FusesUsage
13 Front Wiper
14 Exterior Lighting Module 6
15 Exterior Lighting Module 1
16 Exterior Lighting Module 5
17 Exterior Lighting Module 3
18 Aero Shutter
19 –
20 –
21 Virtual Key System/ Power Sounder
Module
22 Engine Control Module Battery
23 Transmission Control Module
24 Active Engine Mount
25 –
26 Engine Control Module Fuses
Usage
27 Injectors/Ignition 2
28 Charged Air Cooler
29 Transmission Aux Oil Pump/Transmission
Reverse Lock Out
30 Injectors/Ignition 1
31 Emissions 1
32 Emissions 2
33 Starter Solenoid
34 –
35 –
36 Starter Pinion
37 AC Clutch
38 –
39 –
40 –
41 –
42 Water Pump
43 –
44 – Relays
Usage
47 –
48 Front Wiper Speed
49 Front Wiper Control
51 –
52 Engine Control Module
53 Starter Solenoid
54 Starter Pinion
55 –
57 AC Clutch
58 –
Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
INDEX 455
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 386
ChargingWireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Charging System Light . . . . . . . . . . . . . 106
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 106
Child Restraints Infants and Young Children . . . . . . . 68
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . . . . . 74
Older Children . . . . . . . . . . . . . . . . . . . . . 67
Securing . . . . . . . . . . . . . . . . . . . . . . . . 80, 82
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 359
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 399
Interior Care . . . . . . . . . . . . . . . . . . . . . . 404
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . 209
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Cluster, Instrument . . . . . . . . . . . . . . 96, 98
Clutch, Hydraulic . . . . . . . . . . . . . . . . . . . 340
Collision Damage Repair . . . . . . . . . . . 438
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Competitive Driving Mode . . . . . . . . . 265 Composite Materials . . . . . . . . . . . . . . . . 237
Compressor Kit, Tire Sealant . . . . . . . 388
Connected Services
Connections . . . . . . . . . . . . . . . . . . . . . . . 450
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 452
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 450
Connections
Connected Services . . . . . . . . . . . . . . . 450
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Control of a Vehicle . . . . . . . . . . . . . . . . 218
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . 146
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 26
Coolant Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 103, 104
Engine Temperature Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Cooling System . . . . . . . . . . . . . . . . . . . . . 343
Cornering Lamps . . . . . . . . . . . . . . . . . . . 139
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 139
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Coverage Explanations . . . . . . . . . . . . . 171
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 268 Cruise Control (cont'd)
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Cruise Control, Adaptive . . . . . . . . . . . 270
Cruise Control, Super . . . . . . . . . . . . . . . 279
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Customer Assistance . . . . . . . . . . . . . . . 433 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433
Text Telephone (TTY) Users . . . . . 433
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . . . . . 440
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 431
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . 442
D
Damage Repair, Collision . . . . . . . . . . . 438
Danger, Warning, and Caution . . . . . . . . 2
Data Collection Infotainment System . . . . . . . . . . . . . 443
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
Data Recorder
Performance . . . . . . . . . . . . . . . . . . . . . . . 177
Data Recorders, Event . . . . . . . . . . . . . . 442
Database Coverage Explanations . . . . . . . . . . . . . . . . . . . . . . 171
Daytime Running Lamps (DRL) . . . 137
Defensive Driving . . . . . . . . . . . . . . . . . . . 217
Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
458 INDEX
Headlamps (cont'd)High-Beam On Light . . . . . . . . . . . . . . 115
High/Low Beam Changer . . . . . . . . . 137
Lamps On Reminder . . . . . . . . . . . . . . 115
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . 89
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 28
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
High-Beam On Light . . . . . . . . . . . . . . . . 115
High-Speed Operation . . . . . . . . . . . . . . 375
Hill and Mountain Roads . . . . . . . . . . 231
Hill Start Assist (HSA) . . . . . . . . . . . . . 257
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
How to Wear Seat Belts Properly . . . 48
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Hydraulic Clutch . . . . . . . . . . . . . . . . . . . . 340
I
If the System Needs Service . . . . . . . 171
Ignition Positions . . . . . . . . . . . . . . . . . . . 238
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Indicator
Pedestrian Ahead . . . . . . . . . . . . . . . . . 111 Indicator (cont'd)
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 110
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Information Publication Ordering . . . . . . . . . . . . . 440
Infotainment System . . . . . . . . . . . . . . . 443
Instrument Cluster . . . . . . . . . . . . . . 96, 98
Instrument Panel Overview . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . 28
Introduction . . . . . . . . . . . . . . . . . . . . . . 1, 143
J
Jump Starting - North America . . . . 394
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 370
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Daytime Running (DRL) . . . . . . . . . . 137
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Exterior Controls . . . . . . . . . . . . . . . . . . 135
Exterior Lamps Off Reminder . . . . 137 Lamps (cont'd)
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 106
On Reminder . . . . . . . . . . . . . . . . . . . . . . 115
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Lane Change Alert (LCA) . . . . . . . . . . . 310
Lane Keep Assist (LKA) . . . . . . . . . . . . 312
Lane Keep Assist Light . . . . . . . . . . . . . 110
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 50
LATCH System Replacing Parts after a Crash . . . . . 80
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . 74
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 357
Light
Performance Shifting . . . . . . . . . . . . . 109
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Illumination Control . . . . . . . . . . . . . . 139
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . 109
Automatic Vehicle Hold . . . . . . . . . . 110