Page 353 of 496

Black plate (35,1)Cadillac CTS/CTS-V Owner Manual - 2011
Vehicle Care 10-35
6. Replace the blade with anew one.
7. Reinstall the wiper bladeassembly by sliding it over the
wiper arm to engage the
J-hooked end. Pull up on the
assembly to lock it into place.
8. Repeat the steps for the other wiper.
Headlamp Aiming
The vehicle has a visual optical
headlamp aiming system. The aim
has been preset at the factory and
should need no further adjustment.
However, if the vehicle is damaged
in a crash, the headlamp aim may
be affected and adjustment may be
necessary.
If oncoming vehicles flash their high
beams at you, this may also mean
the vertical aim needs to be
adjusted.
It is recommended that the vehicle
is taken to your dealer for service if
the headlamps need to be re-aimed.
It is possible, however, to re-aim the
headlamps as described.
The vehicle should:
.Be placed so the headlamps are
7.6 m (25 ft) from a light
colored wall.
.Have all four tires on a level
surface which is level all the way
to the wall.
.Be placed so it is perpendicular
to the wall.
.Not have any snow, ice, or mud
on it.
.Be fully assembled and have all
other work stopped while
headlamp aiming is being
performed.
.Be loaded with a full tank of fuel
and one person or 75 kg
(160 lbs) sitting on the
driver seat.
.Have all tires properly inflated.
.Have the spare tire (if equipped)
in its original location in the
vehicle.
Headlamp aiming is done with the
vehicle's low-beam headlamps. The
high-beam headlamps will be
correctly aimed if the low-beam
headlamps are aimed properly.
Page 354 of 496
Black plate (36,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-36 Vehicle Care
To adjust the vertical aim:
1. Open the hood. SeeHood
on
page 10‑5for more information.
Halogen Headlamps
High Intensity Discharge
Headlamps
2. Locate the aim dot on the lens of the low‐beam headlamp.
3. Record the distance from the ground to the aim dot on the
low‐beam headlamp.4. At a wall, measure from theground upward (A) to the
recorded distance from
Step 3 and mark it.
5. Draw or tape a horizontal line (B) the width of the vehicle at the
wall where it was marked in
Step 4.
Notice: Do not cover a headlamp
to improve beam cut-off when
aiming. Covering a headlamp may
cause excessive heat build-up
which may cause damage to the
headlamp.
Page 355 of 496

Black plate (37,1)Cadillac CTS/CTS-V Owner Manual - 2011
Vehicle Care 10-37
6. Turn on the low-beamheadlamps and place a piece of
cardboard or equivalent in front
of the headlamp not being
aimed. This should allow only
the beam of light from the
headlamp being aimed to be
seen on the flat surface.
Driver Side Shown
7. Locate the vertical headlamp aiming screws, which are under
the hood near each headlamp
assembly. They are covered by
rubber caps. The adjustment screw can be
turned with a 6 mm hex driver.
8. Turn the vertical aiming screw until the headlamp beam is
aimed to the horizontal tape line.
Turn it clockwise or
counterclockwise to raise or
lower the angle of the beam.
The top edge of the cut-off
should be positioned at the
bottom edge of the horizontal
tape line.
9. Make sure that the light from theheadlamp is positioned at the
bottom edge of the horizontal
tape line. The lamp on the
left (A) shows the correct
headlamp aim. The lamp on the
right (B) shows the incorrect
headlamp aim.
10. Repeat Steps 7 through 9 for the opposite headlamp.
Page 356 of 496

Black plate (38,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-38 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbson
page 10‑40.
For any bulb changing procedure
not listed in this section, contact
your dealer.
Halogen Bulbs
{WARNING
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
High Intensity Discharge
(HID) Lighting
{WARNING
The low beam high intensity
discharge lighting system
operates at a very high voltage.
If you try to service any of the
system components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
The up‐level vehicle has HID
headlamps. After an HID headlamp
bulb has been replaced, the beam
might be a slightly different shade
than it was originally. This is normal.
Fog Lamps
To replace a front fog lamp bulb:
1. Pull out the push-pins located on the underside of the protection
shield to remove the shield.
2. Reach up behind the front bumper area from under the
vehicle to access the lamp
housing.
Page 361 of 496
Black plate (43,1)Cadillac CTS/CTS-V Owner Manual - 2011
Vehicle Care 10-43
Mini‐Fuses Usage11 Not Used
19 Antilock Braking
System (ABS)
22 Display
23 Not Used
24 Body Control
Module 1 Mini‐Fuses Usage
25 Automatic Forward
Lighting System
(HID Only)
26 Body Control
Module 5
27 Body Control
Module 4 Mini‐Fuses Usage
28 Navigation Motor
29 All-Wheel Drive
30 Transmission
Control Module
Battery
31 Horn
33 Left Low‐Beam
Headlamp
(Domestic
Non‐HID Only)
34 Pedestrian
Protection System
(Export Only)
35 Body Control
Module 3
36 Body Control
Module 2
38 Headlamp Washer
(HID Only)
Page 362 of 496
Black plate (44,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-44 Vehicle Care
Mini‐Fuses Usage40 Right Low‐Beam
Headlamp
(Domestic
Non‐HID Only)
41 Air Conditioning
Compressor Clutch
43 Low‐Beam Daytime
Running Lamps
(non‐HID), Left
Daytime Running
Lamps (HID), Left
Trailer Turn Signal
(Export Only)
46 Left High‐Beam
Headlamp
47 Right High‐Beam
Headlamp
50 Right Daytime
Running Lamp,
Windshield
Washer Pump Mini‐Fuses Usage
51 Airbag System
Ignition Switch
52 Engine Control
Module Ignition,
Transmission
Control Module
Ignition
54 Power Moding
(Immobilizer
Module, Ignition
Switch)
55 Not Used
56 Windshield Wipers
57 Right Low‐Beam
(HID Only)
58 Daytime Running
Lamps (non‐HID),
Left Low‐Beam
(HID Only) Mini‐Fuses Usage
59 Right Daytime
Running Lamp (HID
Only), Right Trailer
Turn Signal
(Export Only)
60 Instrument Panel
Auxiliary Power
Outlet
61 Air Quality Sensor,
Inside Rear View
Mirror, Rear
Camera
62 Ignition
64 Steering Wheel
Illumination
65 Front Fog Lamps
(HID Only)
Page 364 of 496
Black plate (46,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-46 Vehicle Care
RelaysUsage
21 Cooling Fan (Series/
Parallel)
32 Air Conditioning
Compressor Clutch
39 Windshield
Washer Pump
42 Right Daytime
Running Lamp,
Trailer Turn Signal
44 Low‐Beam
(non‐HID), Left
Daytime Running
Lamps (HID), Left
Trailer Turn Signal
(Export Only) Relays
Usage
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps
49 Daytime Running
Lamps (Non‐HID),
Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High SpeedEngine Compartment
Fuse Block (CTS V Coupe
and Sedan)
The underhood fuse block is located
on the passenger side of the engine
compartment.
Lift the fuse block cover to access
the fuses.
Notice:
Spilling liquid on any
electrical components on the
vehicle may damage it. Always
keep the covers on any electrical
component.
Page 366 of 496
Black plate (48,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-48 Vehicle Care
Mini‐Fuses Usage43 Left Daytime
Running
Lamps (HID)
46 Left High‐Beam
Headlamp
47 Right High‐Beam
Headlamp
50 Right Daytime
Running Lamp,
Windshield
Washer Pump
51 Airbag System
Ignition Switch
52 Engine Control
Module Ignition,
Transmission
Control Module
Ignition
54 Power Moding
(Immobilizer
Module, Ignition
Switch)
55 Intercooler Pump Mini‐Fuses Usage
56 Windshield Wipers
57 Right Low‐Beam
(HID Only)
58 Left Low‐Beam
(HID Only)
59 Right Daytime
Running Lamp
(HID Only)
60 Instrument Panel
Auxiliary Power
Outlet
61 Air Quality Sensor,
Inside Rear View
Mirror, Rear
Camera
62 Ignition
64 Steering Wheel
Illumination
65 Front Fog Lamps
(HID Only) Mini‐Fuses Usage
69 Body Control
Module 6, Body
Control Module 7
70 Emissions 1
71 Even Ignition Coils
72 Odd Ignition Coils
73 Emissions 2
74 Engine Control
Module
75 Not Used
76 Spare
77 Spare
78 Spare
79 Spare
80 Spare
81 Spare