2020 CADILLAC CT5 check engine

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
6 INTRODUCTION
1.Air Vents 0146.
2. Turn Signal Lever. See Turn and
Lane-Change Signals 0137.
Exterior Lamp Controls 0133.
IntelliBeam System Button (If
Equipped). See Exterior Lamp
Controls 0133.
3. Tap Shift Controls (If Equipped). See Manual Mode 0178.
4. Instrument Cluster 0101.
5. Windshield Wiper/Washer 095.
6. Light Sensor. See Automatic
Headlamp System 0136.
7. Home Button and Infotainment Controls. See Infotainment0141.
8. Infotainment 0141.
9. Dual Automatic Climate Control
System 0142.
10. Heated and Ventilated Front Seats
046 (If Equipped).
Lane Keep Assist (LKA) 0222 (If
Equipped). Automatic Park Assist Button (If
Equipped). See
Assistance
Systems for Parking or Backing
0 205.
Park Assist Button. See
Assistance Systems for Parking or
Backing 0205.
11. Hazard Warning Flashers 0136.
12. Infotainment Controls. See Infotainment 0141.
13. Shift Lever. See Automatic
Transmission 0173.
14. Traction Control/Electronic
Stability Control 0183.
Automatic Vehicle Hold (AVH)
0 182.
Stop/Start Disable Switch. See
Starting the Engine 0165.
MODE Switch. See Driver Mode
Control 0185.
15. Steering Wheel Controls 094.
Driver Information Center (DIC)
Controls. See Driver Information
Center (DIC) 0117.
16. Horn 095. 17.
Steering Wheel Adjustment 094.
18. Cruise Control 0193 (If
Equipped).
Adaptive Cruise Control 0195 (If
Equipped).
Forward Collision Alert (FCA)
System 0214 (If Equipped).
Heated Steering Wheel 094 (If
Equipped).
19. Hood Release. See Hood0241.
20. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0108.
21. Instrument Panel Illumination
Control 0137.
22. Head-Up Display (HUD) 0119 (If
Equipped).
23. Electric Parking Brake (EPB) Switch. See Electric Parking Brake
0 180.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
12 KEYS, DOORS, AND WINDOWS
Remote Key No Longer In Vehicle
Alert
If the vehicle is on, with a door open,
and then all doors are closed, the
vehicle will check for a remote key
inside. If a remote key is not detected,
the Driver Information Center (DIC)
will display NO KEY FOUND and the
horn will chirp three times.
This occurs only once each time the
vehicle is driven. SeeVehicle
Personalization 0124.
Keyless Trunk Opening
Press the touch pad on the rear of the
trunk above the license plate if the
remote key is within 1 m (3 ft).
Mechanical Key Access
To access a vehicle with a weak
remote key battery, see Door Locks
0 16.
Programming Remote Keys to
the Vehicle
Only remote keys programmed to the
vehicle will work. If a remote key is
lost or stolen, a replacement can be
purchased and programmed through your dealer. The vehicle can be
reprogrammed so that lost or stolen
remote keys no longer work. Each
vehicle can have up to eight remote
keys matched to it.
Programming with Recognized
Remote Keys
A new key can be programmed to the
vehicle when there are two
recognized keys.
To program, the vehicle must be in
RUN and all remote keys, both
currently recognized and new, must
be with you.
1. Place the two recognized remote keys on the passenger seat.
2. Scroll to the DIC menu to "Remote Key Learn" menu and
select.
The DIC displays READY FOR
REMOTE #3, 4, 5, ETC.
3. Place the new remote key intothe rear cupholder.
4. Press ENGINE START/STOP. When the remote key is learned,
the DIC display will show that
the remote key has been
programmed.
5. Remove the remote key from the rear cupholder and press
KorQ
on the remote key.
To program additional remote
keys, repeat Steps 3–5.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
KEYS, DOORS, AND WINDOWS 15
4. Remove the battery cover.
5. Remove the seal by pulling onthe tab to access the battery.
6. Remove the old battery. Do not use a 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.
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 046.
If equipped with a remote start heated
steering wheel, it may come on during
a remote start. See Heated Steering
Wheel 094.
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
8.
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 doors will

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
INSTRUMENTS AND CONTROLS 93
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . . . 94
Steering Wheel Controls . . . . . . . . . . 94
Heated Steering Wheel . . . . . . . . . . . . 94
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Windshield Wiper/Washer . . . . . . . . 95
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Power Outlets . . . . . . . . . . . . . . . . . . . . . . 97
Wireless Charging . . . . . . . . . . . . . . . . . 98
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 100
Instrument Cluster . . . . . . . . . . . . . . . 101
Speedometer . . . . . . . . . . . . . . . . . . . . . . 104
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 104
Trip Odometer . . . . . . . . . . . . . . . . . . . . 104
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 104
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 104
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Seat Belt Reminders . . . . . . . . . . . . . . 105
Airbag Readiness Light . . . . . . . . . . 106 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 107
Charging System Light . . . . . . . . . . . 107
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 108
Brake System Warning Light . . . . 110
Electric Parking Brake Light . . . . . 110
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 111
Performance Shifting Light . . . . . . 111
Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Lane Keep Assist (LKA) Light . . . 111
Vehicle Ahead Indicator . . . . . . . . . 112
Pedestrian Ahead Indicator . . . . . . 112
Traction Off Light . . . . . . . . . . . . . . . . 112
StabiliTrak OFF Light . . . . . . . . . . . . 113
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 113
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 113
Driver Mode Control Light . . . . . . . 114
Tire Pressure Light . . . . . . . . . . . . . . . 114
Engine Oil Pressure Light . . . . . . . . 115
Low Fuel Warning Light . . . . . . . . . 115
Security Light . . . . . . . . . . . . . . . . . . . . . 115
High-Beam On Light . . . . . . . . . . . . . 116
Lamps On Reminder . . . . . . . . . . . . . 116 Cruise Control Light . . . . . . . . . . . . . . 116
Door Ajar Light . . . . . . . . . . . . . . . . . . . 117
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . . . . 117
Head-Up Display (HUD) . . . . . . . . . 119
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 123
Engine Power Messages . . . . . . . . . . 123
Vehicle Speed Messages . . . . . . . . . 124
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 124
Universal Remote System
Universal Remote System . . . . . . . . 130
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 130
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 132

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
100 INSTRUMENTS AND CONTROLS
3. Neither the name of thecopyright holder nor the names
of its contributors may be used
to endorse or promote products
derived from this software
without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY
THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL
THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF
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-13060105) -
2020 - CRC - 2/14/20
INSTRUMENTS AND CONTROLS 107
Warning (Continued)
the airbag system might not be
working properly. The airbags in the
vehicle might not inflate in a crash,
or they could even inflate without a
crash. To help avoid injury, have
the vehicle serviced right away.
If there is a problem with the airbag
system, a Driver Information Center
(DIC) message may also come on.
Passenger Airbag Status
Indicator
The vehicle has a passenger sensing
system. See Passenger Sensing System
0 65 for important safety information.
The overhead console has a passenger
airbag status indicator.
When the vehicle is started, the
passenger airbag status indicator will
light ON and OFF, and the symbols for
on and off, for several seconds as a
system check. Then, after several more
seconds, the status indicator will light
either ON or OFF, and either the
symbol for on or off, to let you know
the status of the front outboard
passenger frontal airbag and knee
airbag.
If the word ON, and the on symbol, is
lit on the passenger airbag status
indicator, it means that the front
outboard passenger frontal airbag and
knee airbag are allowed to inflate.
If the word OFF, and the off symbol, is
lit on the passenger airbag status
indicator, it means that the passenger
sensing system has turned off the
front outboard passenger frontal
airbag and knee airbag.
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 Light 0106 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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
108 INSTRUMENTS AND CONTROLS
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.
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 Positions0164.
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.
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 Modifications 0240.
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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
INSTRUMENTS AND CONTROLS 109
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 0228. 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) 0226 or
Recommended Fuel (LGY 3.0L
V6 Engine) 0227.
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 vehicle may affect vehicle operation.
See
Add-On Electrical Equipment 0236.
See your dealer if assistance is needed.
The vehicle may not pass
inspection if:
. The light is on when the engine is
running.
. The light does not come on when
the ignition is in Service Mode.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if the
12-volt battery has recently been
replaced or run down, or if the
vehicle has been recently serviced.
See your dealer if the vehicle will not
pass or cannot be made ready for
the test.