Page 204 of 498

Black plate (8,1)Cadillac SRX Owner Manual - 2011
6-8 Lighting
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning
fast enough at idle to produce all
the power that is needed for very
high electrical loads.
A high electrical load occurs when
several of the following are on,
such as: headlamps, high beams,
fog lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a Driver Information
Center (DIC) message might be
displayed, such as BATTERY
SAVER ACTIVE, BATTERY
VOLTAGE LOW, or LOW BATTERY.
If one of these messages displays,
it is recommended that the driver
reduce the electrical loads as much
as possible. See
Driver Information
Center (DIC) on page 5‑28.
Page 371 of 498

Black plate (33,1)Cadillac SRX Owner Manual - 2011
Vehicle Care 10-33
The vehicle should be properly
prepared as follows:
.The vehicle should be placed so
the headlamps are 7.6 m (25 ft)
from a light‐colored wall.
.The vehicle must have all four
tires on a level surface which is
level all the way to the wall.
.The vehicle should be placed so
it is perpendicular to the wall.
.The vehicle should not have any
snow, ice, or mud on it.
.The vehicle should be fully
assembled and all other work
stopped while headlamp aiming
is being performed.
.The vehicle should be normally
loaded with a full tank of fuel and
one person or 75 kg (160 lbs)
sitting on the driver seat.
.Tires should be properly inflated.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.
Base Vehicle
Up-level Vehicle
2. Locate the aim point at the center inner projector
condensing lens of the low-beam
headlamp, not the outer lens.
3. Measure the distance from the ground to the aim dot on the
low‐beam headlamp. Record
the distance.
Page 374 of 498

Black plate (36,1)Cadillac SRX Owner Manual - 2011
10-36 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑45.
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.
Headlamps
Base Headlamp Assembly
(Front View Passenger Side)
A. Low‐Beam Headlamp/Daytime Running Lamp (DRL)
B. High‐Beam Headlamp
C. Turn Signal Lamp
Page 375 of 498
Black plate (37,1)Cadillac SRX Owner Manual - 2011
Vehicle Care 10-37
Base Headlamp Assembly
(Rear View Passenger Side)
A. Low‐Beam Headlamp/DaytimeRunning Lamp (DRL)
B. High‐Beam Headlamp
C. Turn Signal LampUp–Level Headlamp Assembly
(Front View Driver Side)
A. High/Low‐Beam Headlamp (To be replaced at dealer only)
B. Daytime Running Lamp (DRL)
C. Turn Signal LampUp–Level Headlamp Assembly
(Rear View Driver Side)
A. High/Low‐Beam Headlamp (To be replaced at dealer only)
B. Daytime Running Lamp (DRL)
C. Turn Signal Lamp
Page 377 of 498

Black plate (39,1)Cadillac SRX Owner Manual - 2011
Vehicle Care 10-39
3. Remove the connector lock (B)located at the bottom of the
sensor connector (C).
4. Press on the top and bottom of the sensor connectors (C) and
remove.
5. Lift the three retaining clips (D) on the air filter housing.
6. Turn and tilt cover slightly upwards and slide cover away
from outside edge of vehicle.
Lift the cover away from base.
7. Lift the air cleaner/filter base todisengage from three pins.
Low-Beam Headlamps/Daytime
Running Lamps (DRL),
High-Beam Headlamps (Base)
1. From the back side of theheadlamp assembly, remove the
top cap to replace the low-beam
headlamp/DRL bulb.
2. From the back side of theheadlamp assembly, remove
the bottom cap to replace the
high-beam headlamp bulb.
3. Disconnect electrical connector.
4. Remove the bulb socket from the headlamp assembly.
5. Replace the bulb in the bulb socket.
6. Install the bulb socket in the headlamp assembly.
7. Connect the electrical connector.
Page 378 of 498

Black plate (40,1)Cadillac SRX Owner Manual - 2011
10-40 Vehicle Care
8. Install the cap with the downarrow pointing down in the back
of the headlamp assembly.
9. For driver side, reinstall the underhood electrical center
cover by latching three clips.
10. For passenger side, reinstall the air filter/cleaner assembly
base by pushing to seat. Verify
the base is seated securely,
then install the engine air
filter/cleaner assembly.
High/Low‐Beam Headlamps
(Up-Level)
The high/low beam headlamps on
the up-level are High Intensity
Discharge (HID) and should be
replaced at the dealer.
Daytime Running Lamp (DRL)
(Up-Level)
1. From the back side of theheadlamp assembly, remove
the bottom cap to replace the
DRL bulb.
2. Disconnect electrical connector. 3. Remove the DRL bulb socket
from the headlamp assembly.
4. Replace the bulb in the bulb socket.
5. Install the bulb socket in the headlamp assembly.
6. Connect the electrical connector.
7. Install the cap with the down arrow pointing down in the back
of the headlamp assembly.
8. For driver side, reinstall the underhood electrical center
cover by latching three clips.
9. For passenger side, reinstall the air filter/cleaner assembly base
by pushing to seat. Verify the
base is seated securely, then
install the engine air filter/
cleaner assembly.
Page 383 of 498

Black plate (45,1)Cadillac SRX Owner Manual - 2011
Vehicle Care 10-45
7. Turn the lamp assembly into theliftgate engaging the clip side
first.
8. Push on the lamp side opposite the clip until the lamp assembly
snaps into place.
Replacement Bulbs
Exterior Lamp Bulb
Number
Daytime
Running Lamp 7443
Fog Lamp H10
Headlamp
High-Beam 9005
Headlamp
Low-Beam H10
License Plate Lamp 194LL
Turn Signal Front 7440
Tail/Turn
Signal Rear 7440
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
the following in the vehicle:
.Headlamp Wiring
.Windshield Wiper Motor
.Power Windows and Other
Power Accessories
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.
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.
Page 386 of 498

Black plate (48,1)Cadillac SRX Owner Manual - 2011
10-48 Vehicle Care
Mini Fuses Usage4 Not Used
5 Engine Control
Module Run Crank
7 Post–Catalytic
Converter O2
Sensor
8 Pre–Catalytic
Converter O2
Sensor
9 Engine Control
Module Powertrain
10 Fuel Injectors–Even 11 Fuel Injectors–Odd
13 Washer
16 Instrument Panel
Cluster/Malfunction
Indicator Lamp/
Ignition
17 Air Quality Sensor
18 Headlamp Washer Mini Fuses Usage
19 Transmission
Control Module Run
Crank
20 Rear Electrical
Center Run Crank
23 Heater Motor
30 Switch Back Light
32 Battery Sense
(Regulated Voltage
Control)
33 Adaptive Forward
Lighting/Adaptive
Headlamp Leveling
Module
34 Body Control
Module 7
35 Electronic Brake
Control Module
46 Low Beam
Headlamp‐Right
47 Low Beam
Headlamp‐Left Mini Fuses Usage
50 Front Fog Lamps
51 Horn
52 Fuel System Control
Module
53 Headlamp Level
54 Sensing Diagnostic
Module Ignition
55 High Beam
Headlamp–Right
56 High Beam
Headlamp–Left
57 Ignition Steering
Column Lock
65 Trailer Right
Stop Lamp
66 Trailer Left
Stop Lamp
67 Spare
68 Spare
69 Spare