2008 BUICK ENCLAVE turn signal

Turn Signals When Towing a Trailer
The arrows on the instrument panel ash whenever
signaling a turn or lane change. Properly hooked up, the
trailer lamps also ash, telling other drivers the vehicle
is turning, changing lanes or stopping.
When towing a trailer, the arrows on the instrument
panel ash for turns even if the bulbs on the trailer
are burned out. For this reason you may think other
drivers are seeing the signal when they are not.
It is important to check occasionally to be sure the
trailer bulbs are still working.
Driving on Grades
Notice:Do not tow on steep continuous grades
exceeding 6 miles (9.6 km). Extended, higher than
normal engine and transmission temperatures may
result and damage the vehicle. Frequent stops are
very important to allow the engine and transmission
to cool.
Reduce speed and shift to a lower gearbeforestarting
down a long or steep downgrade. If the transmission is
not shifted down, the brakes might have to be used so
much that they would get hot and no longer work well.
On a long uphill grade, shift down and reduce the
vehicle’s speed to around 45 mph (70 km/h) to reduce
the possibility of the engine and the transmission
overheating. If the engine does overheat, see
Engine Overheating on page 5-35.
Parking on Hills
{CAUTION:
Parking the vehicle on a hill with the trailer
attached can be dangerous. If something goes
wrong, the rig could start to move. People can be
injured, and both the vehicle and the trailer can be
damaged. When possible, always park the rig on a
at surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into the curb if facing downhill
or into traffic if facing uphill.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
brake pedal until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking
brake and shift the transmission into P (Park).
5. Release the brake pedal.
4-30

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
the Vehicle.................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-6
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-7
Fuel E85 (85% Ethanol)..................................5-8
Fuels in Foreign Countries...............................5-9
Filling the Tank............................................5-10
Filling a Portable Fuel Container.....................5-12
Checking Things Under the Hood....................5-12
Hood Release..............................................5-13
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-17
Engine Oil Life System..................................5-20
Engine Air Cleaner/Filter................................5-22
Automatic Transmission Fluid.........................5-23
Cooling System............................................5-26
Engine Coolant (4.6L Engine).........................5-28
Engine Coolant (3.9L Engine).........................5-32Radiator Pressure Cap..................................5-35
Coolant Surge Tank Pressure Cap..................5-35
Engine Overheating.......................................5-35
Overheated Engine Protection
Operating Mode.........................................5-37
Power Steering Fluid.....................................5-38
Windshield Washer Fluid................................5-39
Brakes........................................................5-40
Battery........................................................5-44
Jump Starting...............................................5-46
Headlamp Aiming...........................................5-51
Bulb Replacement..........................................5-54
Halogen Bulbs..............................................5-54
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps.....................................5-54
Taillamps and Back-Up Lamps.......................5-56
License Plate Lamp......................................5-57
Replacement Bulbs.......................................5-57
Windshield Wiper Blade Replacement..............5-57
Tires..............................................................5-59
Tire Sidewall Labeling...................................5-60
Tire Terminology and Denitions.....................5-63
Ination - Tire Pressure.................................5-66
Tire Pressure Monitor System.........................5-67
Tire Pressure Monitor Operation.....................5-69
Section 5 Service and Appearance Care
5-1

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-57.
For any bulb changing procedure not listed in this
section, contact your dealer/retailer.
Halogen Bulbs
{CAUTION:
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.
Taillamps, Turn Signal, Stoplamps
and Sidemarker Lamps
A. Sidemarker Lamp
B. Stoplamp/Taillamp/Turn Signal Lamp
5-54

License Plate Lamp
To replace one of these bulbs:
1. Remove the license plate.
2. Reach up through the opening above the license
plate to access the two license plate lamps.
3. Turn the socket counterclockwise to remove.
4. Grasp the bulb in the socket and pull straight out.
5. Push the bulb straight into the socket until it clicks to
secure it.
6. Push the socket in and turn it clockwise to
secure it.
7. Reinstall the license plate in its original location.
Replacement Bulbs
Exterior Lamps Bulb Number
Back-up Lamp 921
Sidemarker, License Plate Lamp,
and Auxiliary Taillamp194
Stoplamp, Taillamp, and Turn
Signal Lamp3057K
For replacement bulbs not listed here, contact your
dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
or cracking. SeeScheduled Maintenance on page 6-4.
It is a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, seeMaintenance
Replacement Parts on page 6-13.
5-57

The TPMS sensors can also be matched to each
tire/wheel position by increasing or decreasing the
tire’s air pressure. If increasing the tire’s air pressure,
do not exceed the maximum ination pressure indicated
on the tire’s sidewall.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the rst tire/wheel
position, and ve minutes overall to match all four
tire/wheel positions. If it takes longer than two minutes, to
match the rst tire and wheel, or more than ve minutes
to match all four tire and wheel positions the matching
process stops and you need to start over.
The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
LOCK and UNLOCK buttons at the same time for
approximately ve seconds. The horn sounds twice
to signal the receiver is in relearn mode and
TIRE LEARNING ACTIVE message displays
on the DIC screen.
4. Start with the driver side front tire.5. Remove the valve cap from the valve cap stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for ve seconds,
or until a horn chirp sounds. The horn chirp,
which may take up to 30 seconds to sound,
conrms that the sensor identication code has
been matched to this tire and wheel position.
6. Proceed to the passenger side front tire, and repeat
the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat
the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the
procedure in Step 5. The horn sounds two times to
indicate the sensor identication code has been
matched to the driver side rear tire, and the TPMS
sensor matching process is no longer active.
The TIRE LEARNING ACTIVE message on
the DIC display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.
5-71

Fuses Usage
5Engine Control Module
(ECM)/Transmission Control
Module (TCM)
6 Memory Module
7 Not Used
8 Steering Wheel Illumination
9 Front Heated/Cooled Seat Module
10Run 2 - Heated/Cooled Seats,
Heated Washer Fluid
11 Not Used
12 RPA Module
13 PASS-Key
®III System
14 Unlock/Lock Module
15 Magnetic Ride Control
16 Daytime Running Lamps (DRL)
17 Sunroof
18 Body Control Module (BCM) Dim
19 Body Control Module (BCM)
20 Run 1-Heated Steering Wheel
Fuses Usage
21 Ignition Switch
22 Driver Door Module
23 Not Used
24 Electronic Leveling Control Module
25Body Control Module
(Left Turn Signal)
26Cigarette Lighter, Auxiliary Power
Outlet
27 Not Used
28 Retained Accessory Power 1 (RAP)
29 Passenger Door Module
30 Sensing and Diagnostic Module
31 Accessory Power Outlets
32Body Control Module (BCM)
(Inadvertent)
33 Retained Accessory Power 2 (RAP)
34 CanisterVent Solenoid
35 Body Control Module (Courtesy)
36Body Control Module
(Right Turn Signal)
5-107

Audio System(s).............................................3-78
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-25
B
Backglass Antenna........................................3-106
Battery..........................................................5-44
Electric Power Management..........................3-19
Exterior Lighting Battery Saver......................3-17
Inadvertent Power Saver..............................3-19
Run-Down Protection...................................3-20
Bluetooth
®.....................................................3-93
Brake
Emergencies................................................ 4-6
Brake Fluid....................................................5-40
Brakes..........................................................5-40
System Warning Light..................................3-38
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-6
Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................5-54
Halogen Bulbs............................................5-54
Headlamp Aiming........................................5-51
License Plate Lamps....................................5-57Bulb Replacement (cont.)
Replacement Bulbs......................................5-57
Taillamps and Back-Up Lamps.......................5-56
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps...................................5-54
Buying New Tires...........................................5-74
C
Calibration.....................................1-12, 2-34, 3-54
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-109
Carbon Monoxide...........................2-13, 2-32, 4-15
Care of
Safety Belts................................................5-95
CD, MP3 .......................................................3-88
Center Console Storage Area...........................2-57
Center Flex Storage Unit.................................2-57
Center Seat...................................................1-12
Chains, Tire...................................................5-80
Charging System Light....................................3-38
Check
Engine Lamp..............................................3-43
2

S
Safety Belt Reminders.....................................3-35
Safety Belts
Care of ......................................................5-95
How to Wear Safety Belts Properly................1-18
Lap Belt.....................................................1-33
Lap-Shoulder Belt........................................1-27
Safety Belt Extender....................................1-34
Safety Belt Use During Pregnancy.................1-33
Safety Belts Are for Everyone.......................1-12
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Center Seat................................................1-12
Heated and Cooled Seats.............................. 1-7
Heated Seats............................................... 1-6
Memory, Mirrors............................................ 1-8
Power Lumbar .............................................. 1-5
Power Seats................................................. 1-5
Reclining Seatbacks...................................... 1-9
Securing a Child Restraint
Center Front Seat Position............................1-54
Rear Seat Position......................................1-51
Right Front Seat Position..............................1-54
Security Light.................................................3-46
Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of the
Vehicle..................................................... 5-5Service (cont.)
California Perchlorate Materials Requirements . . . 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Lamp......................................3-43
Publications Ordering Information...................7-16
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-72
Setting the Clock............................................3-76
Sheet Metal Damage.......................................5-99
Shifting Into Park............................................2-28
Shifting Out of Park........................................2-31
Side Blind Zone Alert......................................2-40
Signals, Turn and Lane-Change.......................... 3-8
Spare Tire
Compact....................................................5-91
Installing
....................................................5-84
Removing...................................................5-83
Storing.......................................................5-89
Specications, Capacities...............................5-109
Speedometer..................................................3-34
StabiliTrak
®Indicator Light...............................3-41
Stabilitrak®System........................................... 4-6
Start Vehicle, Remote....................................... 2-8
Starting the Engine.........................................2-22
Steering.......................................................... 4-8
Steering Wheel Controls, Audio.......................3-104
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Power Tilt Wheel and
Telescopic Steering Column............................ 3-7
11