Page 347 of 478
Black plate (47,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-47
Mini-Fuses Usage11 Not Used
19 Antilock Braking System (ABS)
22 Display
23 Sunroof Mini-Fuses Usage
24 Body Control Module 1
25 Automatic Forward Lighting System
(HID Only)
26 Body Control Module 5 Mini-Fuses Usage
27 Body Control Module 4
28 Navigation Motor
29 Not Used
30 Transmission Control Module
Battery
31 Horn
33 Not Used
34 Pedestrian Protection System
(Export Only)
35 Body Control Module 3
36 Body Control Module 2
38 Headlamp Washer (HID Only)
40 Not Used
41 Air Conditioning Compressor Clutch
Page 349 of 478

Black plate (49,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-49
J-CaseFuses Usage
9 Not Used
10 Antilock Brake System Motor
13 Not Used
14 Electric Parking Brake
15 Not Used
16 Not Used
17 Blower Motor
18 Rear Window Defogger
37 Magnetic Ride/ Suspension Control
Relays Usage 1 Cooling Fan 2
2 Cooling Fan 1
3 Starter Relays Usage
4 Rear Window Defogger
5 Instrument Panel Auxiliary Power
Outlet
12 Horn
20 Headlamp Washer (HID Only)
21 Cooling Fan (Series/ Parallel)
32 Air Conditioning Compressor Clutch
39 Not Used
42 Right Daytime Running Lamp
44 Left Daytime Running Lamp (HID)
45 Front Fog Lamps (HID Only)
48 High-Beam Headlamps Relays Usage
49 Low-Beam Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers High Speed
Rear Compartment Fuse
Block (CTS Coupe and
Sedan)
The rear compartment fuse block is
on top of the battery, on the right
side of the trunk. The battery access
door must be removed to access
the fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
Page 352 of 478
Black plate (52,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
10-52 Vehicle Care
Rear Compartment Fuse
Block (CTS-V Coupe and
Sedan)
The rear compartment fuse block is
on top of the battery, on the right
side of the trunk. The battery access
door must be removed to access
the fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
RelaysUsage
5 Stop Lamps (Export Only)
6 Door Lock
7 Door Unlock Relays
Usage
8 Fuel Door Unlock (Export Only)
9 Right Position Lamp (Export Only)
10 Console/Auxiliary Power Outlet
Page 399 of 478

Black plate (99,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-99
Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Notice:Tire chains will not fit the
compact spare. Using them can
damage the vehicle and the
chains. Do not use tire chains on
the compact spare.Jump Starting
For more information about the
vehicle battery, see Battery on
page 10‑26.
If the vehicle battery has run down,
you may want to use another
vehicle and some jumper cables to
start your vehicle. Be sure to use
the following steps to do it safely.
{WARNING
Batteries can hurt you. They can
be dangerous because:
.They contain acid that can
burn you.
.They contain gas that can
explode or ignite.
.They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these
things can hurt you. Notice:
Ignoring these steps
could result in costly damage to
the vehicle that would not be
covered by the warranty.
Trying to start the vehicle by
pushing or pulling it will not
work, and it could damage the
vehicle.
1. Check the other vehicle. It must
have a 12-volt battery with a
negative ground system.
Notice: Only use a vehicle that
has a 12-volt system with a
negative ground for jump
starting. If the other vehicle does
not have a 12-volt system with a
negative ground, both vehicles
can be damaged.
Page 400 of 478

Black plate (100,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
10-100 Vehicle Care
2. Get the vehicles close enoughso the jumper cables can reach,
but be sure the vehicles are not
touching each other. If they are,
it could cause a ground
connection you do not want. You
would not be able to start your
vehicle and the bad grounding
could damage the electrical
systems.
To avoid the possibility of the
vehicles rolling, set the parking
brake firmly on both vehicles
involved in the jump start
procedure. Put an automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking brake.
Notice: If any accessories are left
on or plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible,
turn off or unplug all accessories
on either vehicle when jump
starting the vehicle. 3. Turn off the ignition on both
vehicles. Unplug unnecessary
accessories plugged into the
cigarette lighter or the accessory
power outlets. Turn off the radio
and all lamps that are not
needed. This will avoid sparks
and help save both batteries.
And it could save the radio!
4. Open the hoods and locate the positive (+) and negative (−)
terminal locations or the remote
positive (+) and remote
negative (−) terminals of the
other vehicle. Then locate the
remote positive (+) location on
your vehicle. See Engine
Compartment Overview on
page 10‑5 for locations of the
terminals.
Your vehicle has a remote
negative (−) ground location, as
shown in the illustration. It is on
the left side of the engine
compartment. See Engine
Compartment Overview on
page 10‑5. You should always
use this remote ground location,
instead of the terminal on the
battery.
Notice: If you connect a negative
cable to the Engine Control
Module (ECM), ECM mounting
bracket, or any cables that attach
to the ECM bracket, you may
damage the ECM. Always attach
Page 401 of 478

Black plate (101,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-101
the negative cable to your
vehicle's remote negative ground
location, instead of the ECM, ECM
bracket, or any cables attached to
the ECM bracket.
{WARNING
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing and tools away from any
underhood electric fan.
{WARNING
Using an open flame near a
battery can cause battery gas to
explode. People have been hurt
doing this, and some have been
blinded. Use a flashlight if you
need more light.(Continued)
WARNING (Continued)
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
amount of fluid is there. If it is low,
add water to take care of that
first. If you do not, explosive gas
could be present.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{WARNING
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running. 5. Check that the jumper cables do
not have loose or missing
insulation. If they do, you could
get a shock. The vehicles could
be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will go
to positive (+) or to a remote
positive (+) terminal if the vehicle
has one. Negative (−) will go to a
heavy, unpainted metal engine
part or to a remote negative (−)
terminal if the vehicle has one.
Do not connect positive (+) to
negative (−) or you will get a
short that would damage the
battery and maybe other parts
too. And do not connect the
negative (−) cable to the
negative (−) terminal on the dead
battery because this can cause
sparks.
Page 402 of 478

Black plate (102,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
10-102 Vehicle Care
6. Connect the red positive (+)cable to the positive (+) terminal
of the dead battery. Use a
remote positive (+) terminal if the
vehicle has one.
7. Do not let the other end touch metal. Connect it to the
positive (+) terminal of the good
battery. Use a remote
positive (+) terminal if the vehicle
has one. 8. Now connect the black
negative (−) cable to the
negative terminal of the good
battery. Use a remote
negative (−) terminal if the
vehicle has one.
Do not let the other end touch
anything until the next step. The
other end of the negative (−)
cable does not go to the dead
battery. It goes to a heavy,
unpainted metal engine part or
to a remote negative (−) terminal
on the vehicle with the dead
battery.
9. Connect the other end of the negative (−) cable at least 45 cm
(18 in) away from the dead
battery, but not near engine
parts that move. The electrical
connection is just as good there,
and the chance of sparks getting
back to the battery is much less. Use a remote negative (−)
terminal if the vehicle has one.
Your vehicle's remote
negative (−) ground location is
for this purpose.
10. Now start the vehicle with the good battery and run the
engine for a while.
11. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Notice: If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.
Always connect and remove the
jumper cables in the correct
order, making sure that the
cables do not touch each other or
other metal.
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
Page 422 of 478

Black plate (10,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
11-10 Service and Maintenance
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required. It is recommended that
your dealer perform these
services—their trained dealer
technicians know your vehicle best.
Your dealer can also perform a
thorough assessment with a multi‐
point inspection to recommend
when your vehicle may need
attention. The following list is
intended to explain the services and
conditions to look for that may
indicate services are required. Battery
The battery supplies power to start
the engine and operate any
additional electrical accessories.
.To avoid break‐down or failure to
start the vehicle, maintain a
battery with full cranking power.
.Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion‐free.
Belts
.Belts may need replacing if they
squeak or show signs of
cracking or splitting.
.Trained dealer technicians can
inspect the belts and
recommend replacement when
necessary. 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 on page 11‑13 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.