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Vehicle Care 365
Headlamp Aiming
Front 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, or any bulb
changing procedure not listed
in this section, contact your
dealer.
Caution
Do not replace incandescent
bulbs with aftermarket LED
replacement bulbs. This can
cause damage to the vehicle
electrical system.
LED Lighting
This vehicle has several LED
lamps. For replacement of any
LED lighting assembly, 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.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.
To check a fuse, look at the
band inside the fuse. If the
band is broken or melted,
replace the fuse. Be sure to
replace a bad fuse with a fuse
of the identical size and rating.
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366 Vehicle Care
Replacing a Blown Fuse
1. Turn off the vehicle.
2. Locate the fuse puller inthe engine compartment
fuse block.
3. Use the fuse puller toremove the fuse from the
top or side, as shown
above. 4. If the fuse must be
replaced immediately,
borrow a replacement fuse
with the same amperage
from the fuse block.
Choose a vehicle feature
that is not needed to
safely operate the vehicle.
Repeat Steps 2-3.
5. Insert the replacement fuse into the empty slot of
the blown fuse.
At the next opportunity, see
your dealer to replace the
blown fuse.
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.
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Vehicle Care 367
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.
{Danger
Fuses and circuit breakers
are marked with
their ampere rating. Do not
exceed the
specified amperage rating
when replacing fuses and
circuit breakers. Use of an
oversized fuse or circuit
breaker can result in a
vehicle fire. You and others
could be seriously injured or
killed.
{Warning
Installation or use of fuses
that do not meet GM’s
original fuse specifications is
dangerous. The fuses could
fail, and result in a fire. You
or others could be injured or
killed, and the vehicle could
be damaged.
See Accessories and
Modifications 0338 and
General Information 0338.
To check or replace a blown
fuse, see Electrical System
Overload 0365.
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368 Vehicle Care
Engine Compartment
Fuse Block
The underhood fuse block is in
the engine compartment, on
the driver side of the vehicle.
Caution
Do not pull the engine
compartment fuse block
lever, since it is intended
only for service purposes.
If pulled, vehicle malfunction
may occur.
Caution
Spilling liquid on any
electrical component on the
vehicle may damage it.
Always keep the covers on
any electrical component.To remove the fuse block
cover, press the clips on the
cover and lift it straight up.
The vehicle may not be
equipped with all of the fuses,
relays, and features shown.
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Vehicle Care 369
Fuses UsageF1 Antilock Brake System Fuses Usage
F2 Starter 1 Fuses Usage
F3 DC DC Transformer 1
F4 –
F5 DC DC Transformer 2
F6 Amplifier 1 F7 Front Blower
F8 Starter 3
F9 –
F10 –
F11 –
F12 Front Wiper
F13 Starter 2
F14 LED/Automatic Headlamp
Leveling
F15 Rear Wiper 1
F16 –
F17 –
F18 Automatic Headlamp
Leveling Module
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370 Vehicle Care
Fuses UsageF19 –
F20 –
F21 –
F22 Electronic Brake Control Module
F23 Parking/Trailer Lamps
F24 Right Trailer Stoplamp/
Turnlamp
F25 Steering Column Lock
F26 –
F27 Left Trailer Stoplamp/
Turnlamp
F28 –
F29 –
F30 Washer Pump F31 –
F32 –
F33 Fog Lamps Fuses Usage
F34 Horn
F35 –
F36 Headlamp High-beam –Left
F37 Headlamp high-beam –Right
F38 Spare
F39 Transmission Control Module/
Battery 1
F40 Left Rear Bus Electrical Center/
DC DC Ignition
F41 Instrument Cluster
F42 Heating, Ventilation, and
Air Conditioning/
Central Gateway
Module run crank
F43 Head-Up Display/ Reflective Light
Auxiliary Fuses Usage
F44 Electronic Brake Control Module
Electric Brake
Booster/Run/
Crank
F45 –
F46 –
F47 –
F48 Rear Wiper 2
F49 Interior Rearview Mirror/Trailer/
Rear Heated
Seat Run Crank
F50 Fuel Tank Zone Module Run
Crank
F51 Heated Steering Wheel
F52 Air Conditioning Clutch
F53 Coolant Pump
F54 –
F55 –
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Vehicle Care 371
Fuses UsageF56 SpareF57 Engine Control Module/Ignition
F58 Transmission Control Module/
Ignition
F59 Engine Control Module Battery
F60 –
F61 O2 Sensor 1/ Aeroshutter/
Mass Air Flow
Sensor
F62 Engine Control Module–Odd
F63 O2 Sensor 2
F64 Engine Control Module–Even
F65 Engine Control Module
Powertrain 1
F66 Engine Control Module
Powertrain 2 Fuses Usage
F67 Engine Control Module
Powertrain 3
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 –
Relays Usage K1 Starter 1
K2 Run/Crank
K3 Starter 3
K4 LED/Automatic Headlamps
K5 – Relays Usage
K6 –
K7 Engine Control Module
K8 Air Conditioning
K9 –
K10 Starter 2
Instrument Panel
Fuse Block
The instrument panel fuse
block is in the center console
between the driver and
passenger seats. To access
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372 Vehicle Care
the fuses, open the fuse panel
door, or remove the panel
from the passenger side by
pulling it out or see your
dealer.
To reinstall the door, push the
door back into its original
location.
The vehicle may not be
equipped with all of the fuses,
relays, and features shown.
Fuses UsageF1 Body Control Module 6 Fuses Usage
F2 Diagnostic Link/ Central
Gateway
Module
F3 Electric Steering
Column Lock
F4 –
F5 Logistics
F6 Heating, Ventilation, and
Air
Conditioning/
Humidity Sensor
F7 Body Control Module 3
F8 Park Aid/ Electronic
Transmission
Range System
Hybrid
F9 Right Front Heated Seat
F10 Airbag