2022 CADILLAC CT5 check engine

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
INTRODUCTION 5
1.Air Vents 0213.
2. Turn Signal Lever. See Turn and
Lane-Change Signals 0138.
Exterior Lamp Controls 0135.
IntelliBeam System Button (If
Equipped). See Exterior Lamp
Controls 0135.
3. Tap Shift Controls (If Equipped). See Manual Mode 0250.
4. Instrument Cluster (Base Level) 096
or
Instrument Cluster (Uplevel) 098.
5. Windshield Wiper/Washer 090.
6. Light Sensor. See Automatic
Headlamp System 0137.
7. Home Button and Infotainment Controls. See Overview0144.
8. Infotainment. See Introduction
0 143.
9. Dual Automatic Climate Control
System 0209.
10. Heated and Ventilated Front Seats
043 (If Equipped).
Lane Keep Assist (LKA) 0312 (If
Equipped). Automatic Park Assist Button (If
Equipped). See
Assistance Systems
for Parking or Backing 0296.
Park Assist Button. See Assistance
Systems for Parking or Backing
0 296.
11. Hazard Warning Flashers 0138.
12. Infotainment Controls. See Overview 0144 (If Equipped).
13. Shift Lever. See Automatic
Transmission 0246.
See Manual Transmission 0251.
14. Traction Control/Electronic Stability
Control 0258.
Automatic Vehicle Hold (AVH) 0257.
Auto Engine Stop/Start Switch. See
Starting the Engine 0239.
MODE Switch. See Driver Mode
Control 0259.
15. Steering Wheel Controls 089.
Driver Information Center (DIC)
Controls. See Driver Information
Center (DIC) (Base Level) 0116 or
Driver Information Center (DIC)
(Uplevel) 0119. 16.
Horn 090.
17. Steering Wheel Adjustment 089.
18. Cruise Control 0268 (If Equipped).
Adaptive Cruise Control (Advanced)
0 270 (If Equipped).
Forward Collision Alert (FCA) System
0 304 (If Equipped).
Heated Steering Wheel 089 (If
Equipped).
19. Hood Release. See Hood0329.
20. Data Link Connector (DLC) (Out of View). See Malfunction Indicator
Lamp (Check Engine Light) 0106.
21. Instrument Panel Illumination
Control 0139.
22. Head-Up Display (HUD) 0122 (If
Equipped).
23. Electric Parking Brake (EPB) Switch. See Electric Parking Brake
0 255.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
KEYS, DOORS, AND WINDOWS 13
6. Remove the old battery. Do not usea metal object.
7. Insert the new battery, negative side facing down. Replace with a
CR2450 or equivalent battery.
8. Replace the seal, pushing it into the groove around the battery
compartment.
9. Replace the battery cover by snapping it back into the
remote key.
10. Reinsert the mechanical key.
Remote Vehicle Start
This feature allows the engine to be
started from outside the vehicle. It is
not available on vehicles with a
manual transmission.
S: This button on the remote key is
for remote start.
The climate control system will use
the previous settings during a remote
start. The rear window defogger may
come on during remote start based on
cold ambient conditions. The rear
defog indicator light does not come on
during remote start. If equipped, the heated and ventilated
front seats may also come on when
the vehicle personalization setting is
enabled. See
Heated and Ventilated
Front Seats 043.
If equipped with a remote start heated
steering wheel, it may come on during
a remote start. See Heated Steering
Wheel 089.
Laws in some local communities may
restrict the use of remote starters. For
example, some laws may require a
person using remote start to have the
vehicle in view. Check local
regulations for any requirements.
If your vehicle is low on fuel, do not
use the remote start feature. The
vehicle may run out of fuel.
The remote key range may be shorter
while the vehicle is running.
Other conditions can affect the
performance of the remote key. See
Remote Keyless Entry (RKE) System
0 7.
You are allowed multiple starts
totaling 30 minutes of engine run
time. The maximum run time of a
single start is 15 minutes, and it will shut off automatically. You could do
three 10 minute starts, if you
manually shut off after 10 minutes.
The last 10 minute start would shut
off automatically as your total
30 minutes will have been used.
Starting the Engine Using Remote
Start
1. Press
Stwice on the remote key.
The turn signal lamps will flash.
The lamps flash to confirm the
request to remote start the vehicle
has been received. During the
remote start, the parking lamps
will remain on as long as the
engine is running.
2. The engine will shut off after 15 minutes or after the remainder
of the 30 minute total running
time is used, unless you stop the
remote start before engine running
has completed or the vehicle is
turned on.
3. Press the brake pedal and turn the ignition on to drive the vehicle.
Additional Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
SEATS AND RESTRAINTS 61
locked, the interior lamps can be
turned off, and the hazard warning
flashers can be turned off using the
controls for those features. If any of
these systems are damaged in the
crash they may not operate as normal.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle,
such as the fuel system, brake and
steering systems, etc. Even if the
vehicle appears to be drivable after
a moderate crash, there may be
concealed damage that could make
it difficult to safely operate the
vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
.Airbags are designed to inflate only
once. After an airbag inflates, you
will need some new parts for the
airbag system. If you do not get
them, the airbag system will not be
there to help protect you in another
crash. A new system will include
airbag modules and possibly other
parts. The service manual for the
vehicle covers the need to replace
other parts.
.The vehicle has a crash sensing and
diagnostic module which records
information after a crash. See
Vehicle Data Recording and Privacy
0 442 and
Event Data Recorders 0442.
.Let only qualified technicians work
on the airbag system. Improper
service can mean that an airbag
system will not work properly. See
your dealer for service.
Passenger Sensing System
The vehicle has a passenger sensing
system for the front outboard
passenger position. The passenger
airbag status indicator will light on
the overhead console when the vehicle
is started.
The words ON and OFF, and the
symbols for on and off, will be visible
during the system check. When the
system check is complete, either the
word ON or OFF, and the symbol for
on or off, will be visible. See Passenger
Airbag Status Indicator 0105.
The passenger sensing system turns
off the front outboard passenger
frontal airbag and knee airbag under
certain conditions. No other airbag is
affected by the passenger sensing
system.
The passenger sensing system works
with sensors that are part of the front
outboard passenger seat and seat belt.
The sensors are designed to detect the
presence of a properly seated
occupant and determine if the front
outboard passenger frontal airbag and
knee airbag should be allowed to
inflate or not.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
88 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . . . 89
Steering Wheel Controls . . . . . . . . . . 89
Heated Steering Wheel . . . . . . . . . . . . 89
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Windshield Wiper/Washer . . . . . . . . 90
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Power Outlets . . . . . . . . . . . . . . . . . . . . . . 92
Wireless Charging . . . . . . . . . . . . . . . . . 93
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . 95
Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Instrument Cluster (Uplevel) . . . . . 98
Speedometer . . . . . . . . . . . . . . . . . . . . . . 101
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 101
Trip Odometer . . . . . . . . . . . . . . . . . . . . 101
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 101
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 102
Engine Coolant Temperature
Gauge (Base Level) . . . . . . . . . . . . . 103 Engine Coolant Temperature
Gauge (Uplevel) . . . . . . . . . . . . . . . . . 104
Seat Belt Reminders . . . . . . . . . . . . . . 104
Airbag Readiness Light . . . . . . . . . . 105
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 105
Charging System Light . . . . . . . . . . . 106
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 106
Brake System Warning Light . . . . 108
Electric Parking Brake Light . . . . . 108
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 109
Performance Shifting Light . . . . . . 109
Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Lane Keep Assist (LKA) Light . . . 110
Automatic Emergency Braking (AEB) Disabled Light . . . . . . . . . . . 110
Vehicle Ahead Indicator . . . . . . . . . 110
Pedestrian Ahead Indicator . . . . . . 111
Traction Off Light . . . . . . . . . . . . . . . . 111
StabiliTrak OFF Light . . . . . . . . . . . . 111
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 112
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 112
Driver Mode Control Light . . . . . . . 112 Tire Pressure Light . . . . . . . . . . . . . . . 114
Engine Oil Pressure Light . . . . . . . . 114
Low Fuel Warning Light . . . . . . . . . 114
Security Light . . . . . . . . . . . . . . . . . . . . . 115
High-Beam On Light . . . . . . . . . . . . . 115
Lamps On Reminder . . . . . . . . . . . . . 115
Cruise Control Light . . . . . . . . . . . . . . 115
Door Ajar Light . . . . . . . . . . . . . . . . . . . 116
Information Displays
Driver Information Center (DIC)
(Base Level) . . . . . . . . . . . . . . . . . . . . . 116
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . 119
Head-Up Display (HUD) . . . . . . . . . 122
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 125
Engine Power Messages . . . . . . . . . . 126
Vehicle Speed Messages . . . . . . . . . 126
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 126
Universal Remote System
Universal Remote System . . . . . . . . 132
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 132
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 134

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
INSTRUMENTS AND CONTROLS 95
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THIS SOFTWARE IS PROVIDED BY
THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY
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SUCH DAMAGE.
Warning Lights, Gauges,
and Indicators
Warning lights and gauges can signal
that something is wrong before it
becomes serious enough to cause an
expensive repair or replacement.
Paying attention to the warning lights
and gauges could prevent injury.
Some warning lights come on briefly
when the engine is started to indicate
they are working. When one of the
warning lights comes on and stays on
while driving, or when one of the
gauges shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
106 INSTRUMENTS AND CONTROLS
If, after several seconds, all of the
symbols remain lit, or if no symbols
are lit, or if the airbag readiness light
is on, there may be a problem with
the lights or the passenger sensing
system. See your dealer for service
right away.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong with
the airbag system. To help avoid
injury to yourself or others, have
the vehicle serviced right away. See
Airbag Readiness Light0105 for
more information, including
important safety information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned on,
but the engine is not running, as a
check to show the light is working.
It should go out when the engine is
started.
If the light stays on, or comes on
while driving, there may be a problem
with the electrical charging system.
Have it checked by your dealer.
Driving while this light is on could
drain the battery.
When this light comes on, or is
flashing, the Driver Information
Center (DIC) also displays a message.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio and
air conditioner. Find a safe place to
stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s
emission control on-board diagnostic
system. If this light is on while the
engine is running, a malfunction has
been detected and the vehicle may require service. The light should come
on to show that it is working when
the ignition is in Service Mode. See
Ignition Positions
0238.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when it
comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not run
smoothly. This could lead to costly
repairs that might not be covered
by the vehicle warranty.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
INSTRUMENTS AND CONTROLS 107
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not meet
the original tire specifications, can
cause this light to come on. This
could lead to costly repairs not
covered by the vehicle warranty.
This could also affect the vehicle’s
ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications0328.
If the light is f lashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service may
be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades.
If towing a trailer, reduce the amount
of cargo being hauled as soon as
possible. If the light continues to flash, find a
safe place to park. Turn the vehicle off
and wait at least 10 seconds before
restarting the engine. If the light is
still flashing, follow the previous
guidelines and see your dealer for
service as soon as possible.
If the light is on steady :
A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
.If fuel has been added to the vehicle
using the capless fuel funnel
adapter, make sure that it has been
removed. See “Filling the Tank with
a Portable Gas Can ”under Filling the
Tank 0317. The diagnostic system
can detect if the adapter has been
left installed in the vehicle, allowing
fuel to evaporate into the
atmosphere. A few driving trips with
the adapter removed may turn off
the light.
.Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed up.
If this occurs, change the fuel brand. It may require at least one
full tank of the proper fuel to turn
the light off. See
Recommended Fuel
(LSY 2.0L L4 Engine) 0316 or
Recommended Fuel (LGY 3.0L V6 and
LT4 6.2L V8 Engines) 0316.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument
panel to the left of the steering wheel.
Connecting devices that are not used
to perform an Emissions Inspection/
Maintenance test or to service the

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
114 INSTRUMENTS AND CONTROLS
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the vehicle is
started. It provides information about
tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of the
tires are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display.
Stop as soon as possible, and inflate
the tires to the pressure value shown
on the Tire and Loading Information
label. SeeTire Pressure 0374.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the problem is not corrected, the light will
come on at every ignition cycle. See
Tire Pressure Monitor Operation
0377.
Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check the
oil level as soon as possible. Add oil
if required, but if the oil level is
within the operating range and the
oil pressure is still low, have the
vehicle serviced. Always follow the
maintenance schedule for changing
engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced by
your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle could
be low on oil and might have some
other system problem. See your dealer.
Low Fuel Warning Light
A Low Fuel Warning Light near the
fuel gauge comes on briefly when the
ignition is turned on as a check to
show it is working.
It also comes on when the fuel gauge
indicator nears empty. The light turns
off when fuel is added. If it does not,
have the vehicle serviced.