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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
272 Vehicle Care
Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement
Bulbs 0274.
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 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.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
Vehicle Care 273
Back-Up Lamps
1. Back-Up Bulb Socket
2. Back-Up Lamp Assembly
To replace one of these bulbs:1. Reach under the rear fascia and locate the back-up lamp
assembly.
2. Remove the bulb socket (1) by turning counterclockwise and
pulling straight out of the lamp
assembly (2).
3. Pull the bulb out of the socket.
4. Install the new bulb in the bulb socket.
5. Install the bulb socket by turning clockwise.License Plate Lamp
Lamp Assembly
Bulb Assembly
1. Bulb Socket
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
274 Vehicle Care
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:1. Push the lamp assembly (3) toward the center of the
vehicle.
2. Pull the lamp assembly down to remove.
3. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).
5. Push the replacement bulb straight into the bulb socket
and turn the bulb socket
clockwise to install it into the
lamp assembly.
6. Push the lamp assembly back into position until the release
tab locks into place.
Replacement Bulbs
Exterior Lamp Bulb
Number
Back-Up Lamp 921
(W16W)
License Plate Lamp W5W LL
For replacement bulbs not listed
here, contact your dealer.
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
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Vehicle Care 275
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block 0275,
Instrument Panel Fuse Block 0278,
and Rear Compartment Fuse
Block 0281.
Engine Compartment
Fuse Block
The underhood fuse block is on the
passenger 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.
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
276 Vehicle Care
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
Vehicle Care 277
Number Usage1 –
2 –
3 Passenger motorized
safety belt
4 –
5 –
6 Driver power seat
7 –
8 Headlamp washer relay
9 –
10 –
11 –
12 –
13 Passenger power seat
14 –
15 Passive entry/ Passive start
16 –
17 Headlamp washer Number Usage
18 –
19 ABS pump
20 ABS valve
21 –
22 Driver motorized safety belt
23 Wiper control relay
24 Wiper speed relay
25 Engine control module relay
26 –
27 –/Heated seat 2
28 –/Reverse lockout
29 AFS AHL/ Pedestrian
protection
30 –
31 Passenger window switch
32 –
33 Sunroof
34 Front wiper Number Usage
35 Steering column lock
36 Rear electrical center/Ignition
37 –/MIL/Ignition
38 –/PT fuse
39 O2 sensor
40 Ignition coils/ Injectors
41 Ignition coils/ Injectors/–
42 Engine control module
43 –
44 –
45 Washer
46 –
47 Front washer relay
48 Instrument panel body/Ignition
49 Fuel system control module/Ignition
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
278 Vehicle Care
Number Usage50 Heated steering wheel
51 Engine control module/Ignition
52 Transmission control module/
Ignition
53 Coolant pump
54 Coolant pump relay
55 –
56 Transmission control module/–
57 Low-beam headlamp relay
58 High-beam headlamp relay
59 Run/Crank relay
60 Starer 2 relay
61 Vacuum pump relay
62 Starter relay
63 A/C control relay
64 Adaptive headlamp leveling Number Usage
65 Left HID headlamp
66 Right HID headlamp
67 Left/Right high-beam
headlamp
68 Aeroshutter
69 Horn
70 Horn relay
71 Cooling fan
72 Starter 2
73 Brake vacuum pump
74 Starter
75 A/C clutch
76 –
Instrument Panel Fuse
Block
The instrument panel fuse block is
in the end of the driver side of the
instrument panel.
To access the fuses, remove the
end panel by gently prying with a
plastic tool near each clip, beginning
at the point shown.
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
Vehicle Care 279
To install the end cover, insert the
tabs on the back of the cover into
the slots in the instrument panel at
the points shown. Align the clips
with the slots in the instrument
panel, and press the cover into
place.
The vehicle may not be equipped
with all of the fuses and relays
shown.