2012 CADILLAC CTS low beam

Black plate (35,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-35
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.
To adjust the vertical aim:
1. Open the hood. See
Hood on
page 10‑5 for 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.

Black plate (36,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-36 Vehicle Care
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.
6. Turn on the low-beam
headlamps 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 the
headlamp 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.

Black plate (37,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-37
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑39.
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.
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.
3. Remove the electrical connector from the bulb by lifting the two
plastic clips.
4. Remove the bulb socket from the lamp housing by turning the
bulb socket one-quarter turn
counterclockwise.

Black plate (42,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-42 Vehicle Care
Mini‐Fuses Usage27 Body Control
Module 4
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) Mini‐Fuses Usage
40 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
51 Airbag System
Ignition Switch Mini‐Fuses Usage
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)
59 Right Daytime
Running Lamp
(HID Only), Right
Trailer Turn Signal
(Export Only)

Black plate (44,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-44 Vehicle Care
RelaysUsage
12 Horn
20 Headlamp Washer
(HID Only)
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)
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps Relays
Usage
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 Speed
Engine Compartment
Fuse Block (CTS V Coupe
and Sedan)
This fuse block is on the left side of
the engine compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and relays
shown.
Notice:
Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.

Black plate (46,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-46 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) Mini‐Fuses Usage
55 Intercooler Pump
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

Black plate (47,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-47
J-CaseFuses Usage
6 Cooling Fan 2
7 Cooling Fan 1
8 Starter
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
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 Windshield
Washer Pump
42 Right Daytime
Running Lamp
44 Left Daytime
Running Lamp (HID) Relays Usage
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps
49 Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High Speed
Engine Compartment
Fuse Block (CTS Wagon)
This fuse block is on the left side of
the engine compartment.

Black plate (49,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-49
Mini‐Fuses Usage27 Body Control
Module 4
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) Mini‐Fuses Usage
40 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
51 Airbag System
Ignition Switch Mini‐Fuses Usage
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)
59 Right Daytime
Running Lamp
(HID Only), Right
Trailer Turn Signal
(Export Only)