2019 CADILLAC CTS battery replacement

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/8/18
KEYS, DOORS, AND WINDOWS 29
This key, inside the Remote Keyless
Entry (RKE) transmitter, is used for
the driver door and rear folding seats.To remove the key, press the button
on the side of the transmitter near the
bottom, and pull the key out. Never
pull the key out without pressing the
button.
See your dealer if a new key is needed.
Contact Roadside Service if locked out
of the vehicle. See
Roadside Service
0 367.
With an active OnStar or connected
service plan, an OnStar Advisor may
remotely unlock the vehicle. See
OnStar Overview 0377.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement 0373.
If there is a decrease in the Remote
Keyless Entry (RKE) operating range:
. Check the distance. The
transmitter may be too far from
the vehicle.
. Check the location. Other vehicles
or objects may be blocking the
signal. .
Check the transmitter's battery.
See “Battery Replacement ”later in
this section.
. If the transmitter is still not
working correctly, see your dealer
or a qualified technician for
service.
Remote Keyless Entry
(RKE) System Operation
The Keyless Access system allows for
vehicle entry when the Remote
Keyless Entry (RKE) transmitter is
within 1 m (3 ft). See “Keyless Access
Operation ”later in this section.
The RKE transmitter may work up to
60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the transmitter. See
Remote Keyless Entry (RKE) System
0 29.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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32 KEYS, DOORS, AND WINDOWS
chimes are heard. Passive locking will
then remain disabled until
Qon the
interior door is pressed, or until the
vehicle is turned on.
Remote Left In Vehicle Alert
When the vehicle is turned off and an
RKE transmitter is left in the vehicle,
the horn will chirp three times after
all doors are closed. To turn on or off
see Vehicle Personalization 0145.
Remote 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 RKE
transmitter(s) inside. If an RKE
transmitter is not detected, the Driver
Information Center (DIC) will display
NO REMOTE DETECTED and the horn
will chirp three times.
This occurs only once each time the
vehicle is driven. See Vehicle
Personalization 0145.
Keyless Trunk Opening
Press the touch pad on the rear of the
trunk above the license plate if the
RKE transmitter is within 1 m (3 ft). Key Access
To access a vehicle with a weak
transmitter battery, see
Door Locks
0 37.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed to
the vehicle will work. If a transmitter
is lost or stolen, a replacement can be
purchased and programmed through
your dealer. The vehicle can be
reprogrammed so that lost or stolen
transmitters no longer work. Each
vehicle can have up to eight
transmitters matched to it.
Programming with Recognized
Transmitters
A new transmitter can be programmed
to the vehicle when there are two
recognized transmitters.
To program, the vehicle must be off
and all transmitters, both currently
recognized and new, must be
with you.
1. Remove the vehicle key from the recognized transmitter. 2. Place the two recognized
transmitters in the cupholder.
3. Remove the key lock cylinder cap on the driver door handle. See
Door Locks 037. Insert the
vehicle key into the key lock
cylinder on the driver door
handle, then turn the key
counterclockwise to the unlock
position five times within
10 seconds.
The DIC displays READY FOR
REMOTE #2, 3, 4, ETC.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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KEYS, DOORS, AND WINDOWS 35
Battery ReplacementCaution
When replacing the battery, do not
touch any of the circuitry on the
transmitter. Static from your body
could damage the transmitter.
Replace the battery if the DIC displays
REPLACE BATTERY IN REMOTE KEY.
1. Press the button on the side of the RKE transmitter near the
bottom and pull the key out.
Never pull the key out without
pressing the button.
2. Separate the two halves of thetransmitter using the key
inserted into the bottom center
of the transmitter. Do not use
the key slot.3. Remove the old battery. Do notuse a metal object.
4. Insert the new battery on the back housing, positive side facing
down. Replace with a CR2032 or
equivalent battery.
5. Align the front and back housing, then snap the transmitter
together.
Remote Vehicle Start
This feature allows the engine to be
started from outside the vehicle.
/:This button on the RKE
transmitter is for remote start.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/8/18
KEYS, DOORS, AND WINDOWS 45
The power sounder provides an
audible alarm which is distinct from
the vehicle’s horn. It has its own
power source, and can sound an alarm
if the vehicle’s battery is
compromised.
The inclination sensor can set off the
alarm if it senses movement of the
vehicle, such as a change in vehicle
orientation.
Immobilizer
SeeRadio Frequency Statement 0373.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the ignition is turned
on or to ACC/ACCESSORY and a valid
transmitter is present in the vehicle.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched RKE
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, on, off), and
the RKE transmitter appears to be undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console.
If the ignition modes will not change
with the other transmitter or in the
transmitter pocket, the vehicle needs
service. If the ignition does change
modes, the first transmitter may be
faulty. See your dealer.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see
“Programming
Transmitters to the Vehicle ”under
Remote Keyless Entry (RKE) System
Operation 029.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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INSTRUMENTS AND CONTROLS 129
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 Positions0193.
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 0259.
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 CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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144 INSTRUMENTS AND CONTROLS
Care of the HUD
Clean the inside of the windshield to
remove any dirt or film that could
reduce the sharpness or clarity of the
HUD image.
Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe the
lens gently, then dry it.
HUD Troubleshooting
If you cannot see the HUD image
when the ignition is on, check that:
.Nothing is covering the HUD lens.
. The HUD brightness setting is not
too dim or too bright.
. The HUD is adjusted to the proper
height.
. Polarized sunglasses are not worn.
. The windshield and HUD lens are
clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. If the windshield needs
replacing, see Windshield Replacement
0 287.
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple messages
may appear one after another.
The messages that do not require
immediate action can be
acknowledged and cleared by pressing
V. The messages that require
immediate action cannot be cleared
until that action is performed.
All messages should be taken
seriously; clearing the message does
not correct the problem.
If a SERVICE message appears, see
your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
. Service Messages
. Fluid Levels
. Vehicle Security
. Brakes .
Steering
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's propulsion power is reduced.
Reduced propulsion power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
observed reduction in performance,
proceed to your destination. The
performance may be reduced the next
time the vehicle is driven. The vehicle

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VEHICLE CARE 257
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 258
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 258
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 259
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 259
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 259
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 268
Engine Oil Life System . . . . . . . . . . . 271
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Engine Air Cleaner/Filter . . . . . . . . . 272
Cooling System . . . . . . . . . . . . . . . . . . . 274
Engine Overheating . . . . . . . . . . . . . . 279
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 280
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 282
Battery - North America . . . . . . . . . 283
All-Wheel Drive . . . . . . . . . . . . . . . . . . 284 Starter Switch Check . . . . . . . . . . . . . 285
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 286
Wiper Blade Replacement . . . . . . . 286
Windshield Replacement . . . . . . . . 287
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 287
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 288
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 289
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 289
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 289
LED Lighting . . . . . . . . . . . . . . . . . . . . . 289
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 289
License Plate Lamp . . . . . . . . . . . . . . 290
Electrical System
Electrical System Overload . . . . . . 291
Fuses and Circuit Breakers . . . . . . 291
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Instrument Panel Fuse Block . . . . 295
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
All-Season Tires . . . . . . . . . . . . . . . . . . 301
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 301
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 301
Low-Profile Tires . . . . . . . . . . . . . . . . . 302
Summer Tires . . . . . . . . . . . . . . . . . . . . 302
Tire Sidewall Labeling . . . . . . . . . . . 303
Tire Designations . . . . . . . . . . . . . . . . . 304
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 305
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 307
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 308
Tire Pressure Monitor System . . . 309
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 310
Tire Inspection . . . . . . . . . . . . . . . . . . . 313
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 313
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Buying New Tires . . . . . . . . . . . . . . . . 315
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Uniform Tire Quality Grading . . . 317
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Wheel Replacement . . . . . . . . . . . . . . 319
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 319
If a Tire Goes Flat . . . . . . . . . . . . . . . . 320

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VEHICLE CARE 283
new brake linings are installed. Add or
remove fluid, as necessary, only when
work is done on the brake 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 hydraulic system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning Light
0 131.
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 0345. What to Add
Use only GM approved DOT 3 brake
fluid from a clean, sealed container.
See
Recommended Fluids and
Lubricants 0354.{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. The battery is in the trunk, behind the
trim panel, on the driver side of the
vehicle. Refer to the replacement
number shown on the original battery
label when a new battery is needed.
{Warning
WARNING:
Battery posts,
terminals, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer. WASH
HANDS AFTER HANDLING. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition 65 Warning
0 258 and the back cover.
After a power loss, such as
disconnecting the battery or removing
the maxi fuses in the power
distribution fuse block, the following