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All-Wheel Drive
Transfer Case
Under normal driving conditions, transfer
case fluid does not require maintenance
unless there is a fluid leak or unusual noise.
If required, have the transfer case serviced
by your dealer.
Automatic Transmission Shift Lock
Control Function Check
{Warning
When you are doing this inspection, the
vehicle could move suddenly. If the
vehicle moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room around the vehicle.
It should be parked on a level surface.
2. Apply the parking brake. Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition on, but do not start the engine. Without
applying the regular brake, try to move
the shift lever out of P (Park) with normal effort. If the shift lever moves
out of P (Park), contact your dealer for
service.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check, the
vehicle could begin to move. You or
others could be injured and property
could be damaged. Make sure there is
room in front of the vehicle in case it
begins to roll. Be ready to apply the
regular brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the vehicle
facing downhill. Keeping your foot on the
regular brake, set the parking brake.
.To check the parking brake's holding
ability: With the engine running and the
transmission in N (Neutral), slowly remove
foot pressure from the regular brake
pedal. Do this until the vehicle is held by
the parking brake only.
.To check the P (Park) mechanism's holding
ability: With the engine running, shift to
P (Park). Then release the parking brake
followed by the regular brake.
Contact your dealer if service is required.
Wiper Blade Replacement
Windshield wiper blades should be replaced
periodically. See Maintenance Schedule
0 323.
Replacement blades come in different types
and are removed in different ways. For
proper type and length, see Maintenance
Replacement Parts 0328.
Caution
Allowing the wiper arm to touch the
windshield when no wiper blade is
installed could damage the windshield.
Any damage that occurs would not be
covered by the vehicle warranty. Do not
allow the wiper arm to touch the
windshield.
Front Wiper Blade Replacement
To replace the front wiper blades:
1. Lift the wiper arm from the windshield until no further movement is possible.
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Vehicle Care 273
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.
LED Lighting
This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.
Headlamps and Sidemarker Lamps
Base Level Headlamp Assembly
The base model vehicle has halogen
high-beam and low-beam headlamps, an LED
turn signal lamp, and a DRL and parking
lamp on the headlamp assembly.
Driver Side Shown, Passenger Side Similar
1. Low-Beam Headlamp
2. High-Beam Headlamp
High-Beam Headlamp/Low-Beam
Headlamp
1. Open the hood. See Hood0251.
2. Remove the headlamp bulb access cover.
3. Turn the bulb counterclockwise and pull
straight back.
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274 Vehicle Care
4. Disconnect the wiring harness connectorfrom the bulb.
5. Install the new bulb in the headlamp assembly by turning clockwise.
6. Reconnect the wiring harness connector.
7. Install the headlamp bulb access cover.
Uplevel Headlamp Assembly
The uplevel model vehicle has LED
high-beam and low-beam headlamps, a DRL
and parking lamp, and a DRL position lamp
on the headlamp assembly.
Sidemarker
The vehicle has an LED sidemarker lamp.
Front Turn Signal and Fog Lamps
Front Turn Signal Lamp
Driver Side Shown, Passenger Side Similar
1. Tilt the wheel and remove the screws on the outside of the wheel liner.
2. Bend the wheel liner back to makeenough space for hand access.
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3. While holding the wheel liner with onehand and disengage the bulb socket
from the plug connector by pulling the
retaining rib.
4. Turn the bulb holder counterclockwise and remove it from the reflector using
the other hand.
5. Remove the bulb from the bulb socketand replace with a new bulb.
6. Insert the bulb socket into the reflector by turning clockwise and attach the plug
connector.
7. Reassemble the lower cover and front wheel liner.
Front Fog Lamp
The vehicle has LED fog lamp
Taillamps, Turn Signal,
Sidemarker, Stoplamps, and
Back-Up Lamps (Base Level)
Caution
Improper lamp assembly removal and
installation can cause leaks and water
intrusion which may cause damage to
the taillamp. Do not remove the taillamp
assembly to replace a bulb. Use the
tailgate opening to access the bulb.
Tailgate inboard Taillamp
Driver Side Shown, Passenger Side Similar
1. Taillamp
2. Taillamp
1. Remove the bulb access door on tailgate.
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4. Remove the old bulb from the bulbsocket by pulling it straight out.
5. Insert a new bulb into the bulb socket.
6. Install the bulb socket into the taillamp assembly.
7. Install the taillamp assembly to the vehicle body with the two screws.
Rear Back-Up Lamp
The bulbs are accessible from the underside
of the vehicle.
1. Turn the bulb holder anti-clockwise and remove it from reflector.
2. Disengage the bulb socket from the plugconnector by pressing the retaining lug.
3. Remove and replace the bulb socket with bulb and attach the plug connector.
4. Insert the bulb socket into the reflector and turn clockwise to engage.
Taillamps, Turn Signal,
Sidemarker, Stoplamps, and
Back-Up Lamps (Uplevel)
Caution
Improper lamp assembly removal and
installation can cause leaks and water
intrusion which may cause damage to
(Continued)
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Caution (Continued)
the taillamp. Do not remove the taillamp
assembly to replace a bulb. Use the
tailgate opening to access the bulb.
The stoplamp/taillamp/turn signal lamp/side
marker lamp and tailgate inboard taillamp
are LEDs. To replace, see 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.Replacing a Blown Fuse
1. Turn off the vehicle.
2. Locate the fuse puller in the engine
compartment fuse block.
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3. Use the fuse puller to remove the fusefrom 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.
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.
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{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 0250 and
General Information 0250.
To check or replace a blown fuse, see
Electrical System Overload 0278.
Where To Find Fuse Maps for
Your Vehicle
A detailed fuse map and fuse locations for
the vehicle are on the inside of the cover of
the fuse compartments. For the location of
fuse blocks, see Engine Compartment Fuse
Block 0280, Instrument Panel Fuse Block
0 283, and Rear Compartment Fuse Block
0 284.
To view the fuse maps online, scan the QR
code on the back of the printed Owner’s
Manual or visit:
For the United States : www.mybuick.com For Canada :
www.mybuick.ca
The maps are in the same order as the fuse
compartment locations described in your
Owner’s Manual. The number/letter label
prefix is for technician purposes only.
Where To Find Fuse Maps for
Your Vehicle
A detailed fuse map and fuse locations for
the vehicle are on the inside of the cover of
the fuse compartments. For the location of
fuse blocks, see Engine Compartment Fuse
Block 0280, Instrument Panel Fuse Block
0 283, and Rear Compartment Fuse Block
0 284.
To view the fuse maps online, see your
dealer for access to Owner Center or visit
www.my.gm.com.mx
The maps are in the same order as the fuse
compartment locations described in your
Owner’s Manual. The number/letter label
prefix is for technician purposes only.
Engine Compartment Fuse Block
To remove the fuse block cover, squeeze the
clip and lift it up.
Caution
Spilling liquid on any electrical
component on the vehicle may damage
it. Always keep the covers on any
electrical component.