2007 BUICK TERRAZA steering

Dinghy Towing
Your vehicle was not designed to be towed with
all of its wheels on the ground. It can be towed
with the two rear wheels on the ground. See “Dolly
Towing” following for more information.
Dolly Towing
To dolly tow your vehicle, do the following:
1. Put the front wheels on a dolly.
2. Put the vehicle in PARK (P).
3. Set the parking brake and then remove
the key.
4. Clamp the steering wheel in a straight-ahead
position with a clamping device designed for
towing.
5. Release the parking brake.
Level Control
With this feature, the rear of the vehicle is
automatically kept level as you load or unload
your vehicle. However, you should still not exceed
the GVWR or the GAWR. SeeLoading Your
Vehicle on page 378.
You may hear the compressor operating when you
load or unload your vehicle, and periodically as
the system self-adjusts. This is normal. The
compressor should operate for brief periods of
time. If the sound continues for an extended period
of time, your vehicle needs service.
Using heavier suspension components to get
added durability might not change your weight
ratings. Ask your dealer to help you load
your vehicle the right way.
385

Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
you will want to get to know your rig. Acquaint
yourself with the feel of handling and braking with
the added weight of the trailer. And always
keep in mind that the vehicle you are driving is
now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connector,
lamps, tires, and mirror adjustment. If the
trailer has electric brakes, start your vehicle and
trailer moving and then apply the trailer brake
controller by hand to be sure the brakes are
working. This lets you check your electrical
connection at the same time.
During your trip, check occasionally to be sure
that the load is secure, and that the lamps and any
trailer brakes are still working.Following Distance
Stay at least twice as far behind the vehicle ahead
as you would when driving your vehicle without
a trailer. This can help you avoid situations
that require heavy braking and sudden turns.
Passing
You will need more passing distance up ahead
when you are towing a trailer. And, because
you are a good deal longer, you will need to go
much farther beyond the passed vehicle
before you can return to your lane.
Backing Up
Hold the bottom of the steering wheel with one
hand. Then, to move the trailer to the left,
just move that hand to the left. To move the trailer
to the right, move your hand to the right. Always
back up slowly and, if possible, have someone
guide you.
393

Service........................................................ 400
Accessories and Modications................... 400
California Proposition 65 Warning.............. 401
Doing Your Own Service Work.................. 401
Adding Equipment to the Outside of Your
Vehicle................................................... 402
Fuel............................................................. 402
Gasoline Octane........................................ 402
Gasoline Specications.............................. 402
California Fuel........................................... 403
Additives................................................... 403
Fuels in Foreign Countries........................ 404
Filling the Tank......................................... 405
Filling a Portable Fuel Container............... 407
Checking Things Under
the Hood.................................................. 408
Hood Release........................................... 409
Engine Compartment Overview.................. 410
Engine Oil................................................. 411
Engine Oil Life System.............................. 414
Engine Air Cleaner/Filter............................ 416Automatic Transaxle Fluid......................... 417
Engine Coolant.......................................... 420
Radiator Pressure Cap.............................. 423
Engine Overheating................................... 423
Overheated Engine Protection
Operating Mode..................................... 425
Cooling System......................................... 426
Power Steering Fluid ................................. 432
Windshield Washer Fluid........................... 433
Brakes...................................................... 434
Battery...................................................... 437
Jump Starting............................................ 438
Bulb Replacement....................................... 443
Halogen Bulbs........................................... 443
Headlamps and Sidemarker Lamps........... 443
Front Turn Signal, Parking and Daytime
Running Lamps (DRL)........................... 445
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps...................................... 445
License Plate Lamp................................... 447
Replacement Bulbs................................... 447
Section 5 Service and Appearance Care
397

A. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 500.
B. Remote Positive (+) Terminal. SeeJump
Starting on page 438.
C. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 433.
D. Radiator Pressure Cap. SeeRadiator Pressure
Cap on page 423.
E. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 432.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 411.
G. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 411.
H. Automatic Transaxle Fluid Dipstick. See
“Checking the Fluid Level” underAutomatic
Transaxle Fluid on page 417.
I. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 434.
J. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 416.
K. Engine Coolant Recovery Tank. SeeCooling
System on page 426.Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 410
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil
several minutes to drain back into the oil pan.
If you do not do this, the oil dipstick might
not show the actual level.
2. Pull out the dipstick and clean it with a paper
towel or cloth, then push it back in all the
way. Remove it again, keeping the tip down,
and check the level.
411

Power Steering Fluid
The power steering uid
reservoir is located
toward the rear of the
engine compartment on
the passenger’s side
of the vehicle. See
Engine Compartment
Overview on page 410
for reservoir location.
When to Check Power Steering Fluid
It is not necessary to regularly check power
steering uid unless you suspect there is a leak in
the system or you hear an unusual noise. A
uid loss in this system could indicate a problem.
Have the system inspected and repaired.
How to Check Power Steering Fluid
To check the power steering uid, do the following:
1. Turn the key off and let the engine
compartment cool down.
2. Wipe the cap and the top of the reservoir
clean.
3. Unscrew the cap and wipe the dipstick with a
clean rag.
4. Replace the cap and completely tighten it.
5. Remove the cap again and look at the
uid level on the dipstick.
The uid level should be somewhere within the
cross-hatched area on the dipstick. If the uid is at
the ADD mark, you should add uid.
What to Use
To determine what kind of uid to use, see
Recommended Fluids and Lubricants on page 518.
Always use the proper uid. Failure to use the
proper uid can cause leaks and damage hoses
and seals.
432

(C) Aspect Ratio:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is
60, as shown in item C of the illustration, it would
mean that the tire’s sidewall is 60 percent as
high as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire.
The letter R means radial ply construction;
the letter D means diagonal or bias ply
construction; and the letter B means belted-bias
ply construction.
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description:These characters
represent the load range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certied to carry a
load. Speed ratings range from A to Z.Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic
transmission/transaxle, power steering, power
brakes, power windows, power seats, and
air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
453

If a Tire Goes Flat
It is unusual for a tire to blowout while you are
driving, especially if you maintain your vehicle’s
tires properly. If air goes out of a tire, it is
much more likely to leak out slowly. But if you
should ever have a blowout, here are a few tips
about what to expect and what to do:
If a front tire fails, the at tire will create a drag
that pulls the vehicle toward that side. Take your
foot off the accelerator pedal and grip the
steering wheel rmly. Steer to maintain lane
position, and then gently brake to a stop well out
of the traffic lane.
A rear blowout, particularly on a curve, acts much
like a skid and may require the same correction
you would use in a skid. In any rear blowout
remove your foot from the accelerator pedal. Get
the vehicle under control by steering the way
you want the vehicle to go. It may be very bumpy
and noisy, but you can still steer. Gently brake
to a stop, well off the road if possible.{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous
without the appropriate safety equipment
and training. The jack provided with your
vehicle is designed only for changing a
at tire. If it is used for anything else, you
or others could be badly injured or killed
if the vehicle slips off the jack. Use the
jack provided with your vehicle only for
changing a at tire.
If a tire goes at, the next part shows how to use the
jacking equipment to change a at tire safely.
Changing a Flat Tire
If a tire goes at, avoid further tire and wheel
damage by driving slowly to a level place. Turn on
your vehicle’s hazard warning ashers. See
Hazard Warning Flashers on page 172for more
information.
470

Fuses Usage
1 Trunk, Door Locks
2 Electronic Level Control
3 Rear Wiper
4 Radio, DVD Player
5 Interior Lamps
6 OnStar
®
7 Keyless Entry Module
8Cluster, Heating, Ventilation, Air
Conditioning
9 Cruise Switch
10 Steering Wheel Illumination
11 Power Mirror
12 Stoplamp, Turn Lamps
13 Heated Seats
14 Blank
15 Electronic Level Control
16 Heated Mirror
17Center High-Mounted Stoplamp,
Back-up Lamps
18 Blank
19 Canister Vent Solenoid
20 Park Lamps
Fuses Usage
21 Power Sliding Door
22 Blank
23 Blank
24 Left Power Sliding Door
25 Right Power Sliding Door
Relays Usage
26 Blank
27 Blank
28 Park Lamps, Taillamps
29 Retained Accessory Power
30 Rear Defog
PLR Fuse Puller
Circuit
BreakersUsage
31 Power Seats
32 Power Window
499