2007 PONTIAC VIBE ECU

If you put things inside your vehicle — like
suitcases, tools, packages, or anything else — they
will go as fast as the vehicle goes. If you have to
stop or turn quickly, or if there is a crash, they will
keep going.
{CAUTION:
Things you put inside your vehicle can
strike and injure people in a sudden stop
or turn, or in a crash.
Put things in the rear area of your
vehicle. Try to spread the weight
evenly. If you have fold-down rear
seats, you will nd four anchors on
the back wall of your trunk. You can
use these anchors to tie down lighter
loads. They are not strong enough for
heavy things, however, so put them as
far forward as you can in the trunk or
rear area.
CAUTION: (Continued)
CAUTION: (Continued)

Never stack heavier things, like
suitcases, inside the vehicle so that
some of them are above the tops of
the seats.
Do not leave an unsecured child
restraint in your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Do not leave a seat folded down
unless you need to.
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Three important considerations have to do with
weight:
the weight of the trailer
the weight of the trailer tongue
and the total weight on your vehicle’s tires
Weight of the Trailer
How heavy can a trailer safely be?
It should never weigh more than 1,500 lbs
(680 kg). But even that can be too heavy.
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature and how much your vehicle is used to
pull a trailer are all important. It can also depend
on any special equipment that you have on
your vehicle, and the amount of tongue weight the
vehicle can carry. See “Weight of the Trailer
Tongue” later in this section for more information.Maximum trailer weight is calculated assuming
only the driver is in the tow vehicle and it has all
the required trailering equipment. The weight
of additional optional equipment, passengers and
cargo in the tow vehicle must be subtracted
from the maximum trailer weight.
You can ask your dealer for our trailering
information or advice, or you can write us at our
Customer Assistance Offices. SeeCustomer
Assistance Offices on page 404for more
information.
Weight of the Trailer Tongue
The tongue load (A) of any trailer is an important
weight to measure because it affects the total
or gross weight of your vehicle. The Gross Vehicle
Weight (GVW) includes the curb weight of the
vehicle, any cargo you may carry in it, and
the people who will be riding in the vehicle. And if
you tow a trailer, you must add the tongue load
to the GVW because your vehicle will be carrying
that weight, too. SeeLoading Your Vehicle on
page 253for more information about your vehicle’s
maximum load capacity.
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Safety Chains
You should always attach chains between your
vehicle and your trailer. Cross the safety
chains under the tongue of the trailer so that the
tongue will not drop to the road if it becomes
separated from the hitch. Instructions about safety
chains may be provided by the hitch manufacturer
or by the trailer manufacturer. Follow the
manufacturer’s recommendation for attaching
safety chains and do not attach them to the
bumper. Always leave just enough slack so you
can turn with your rig. And, never allow safety
chains to drag on the ground.
Trailer Brakes
Does your trailer have its own brakes?
Be sure to read and follow the instructions for the
trailer brakes so you’ll be able to install, adjust
and maintain them properly. And, if you have
anti-lock brakes, do not try to tap into your
vehicle’s brake system. If you do, both systems
won’t work well, or at all.
Driving with a Trailer
Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
you’ll 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 the trailer hitch, platform
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.
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Occasionally check the coolant level in the
radiator. For information on how to add coolant to
the radiator, seeCooling System on page 299.
Radiator Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
SeeEngine Compartment Overview on page 282
for more information on location.
Engine Overheating
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 169.
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can
burn you badly, even if you just open the
hood. Stay away from the engine if you
see or hear steam coming from it. Just
turn it off and get everyone away from the
vehicle until it cools down. Wait until
there is no sign of steam or coolant
before you open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch re.
You or others could be badly burned.
Stop your engine if it overheats, and get
out of the vehicle until the engine is cool.
Notice:If your engine catches re because
you keep driving with no coolant, your vehicle
can be badly damaged. The costly repairs
would not be covered by your warranty.
297

The low-tire pressure warning light may not come
on even if the tire ination pressure is low, or it
could come on when the tire ination pressure is
set correctly under the following circumstances:
A compact spare tire, snow tires, or tire chains
are installed on your vehicle.
The tires are over-inated, or the tire ination
pressure suddenly drops due to a tire bursting
or other causes.
The vehicle is driven on a slippery road
surface such as rough or frozen roads.
The vehicle speed is less than
19 mph (30 km/h), and the driving duration is
less than ve minutes.
The tires are made by a different manufacturer
or differ in tread pattern than the original
equipment tires.
Rapid acceleration/deceleration or multiple
consecutive sharp turns.
Towing a trailer.
The vehicle is loaded over the limit or not
balanced properly.
The initialization (reset) procedure was not
performed correctly after replacing or
rotating tires or wheels.
The outside temperature is below 32°F (0°C)
or above 104°F (40°C).
Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your
tires as soon as possible and check wheel
alignment. Also check for damaged tires or wheels.
SeeWhen It Is Time for New Tires on page 335
andWheel Replacement on page 340for
more information.
The purpose of regular rotation is to achieve
more uniform wear for all tires on the vehicle.
The rst rotation is the most important. See
Part A: Scheduled Maintenance Services on
page 376for scheduled rotation intervals.
333

Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You cannot know how it has
been used or how far it has been driven. It
could fail suddenly and cause a crash. If
you have to replace a wheel, use a new
GM original equipment wheel.
Tire Chains
Notice:Use tire chains only where legal and
only when you must. Use only SAE Class
“S” type chains that are the proper size for
your tires. Install them on the front tires
and tighten them as tightly as possible with
the ends securely fastened. Drive slowly
and follow the chain manufacturer’s
instructions. If you can hear the chains
contacting your vehicle, stop and retighten
them. If the contact continues, slow down until
it stops. Driving too fast or spinning the
wheels with chains on will damage your
vehicle.
341

3. Use the tire tie-down straps located under the
oor panel to secure the at tire.
4. Hook the straps (end closest to the buckle) to
the rear, upper tie-down hooks.5. Pass the straps through the center hole of
the wheel.
6. Attach the other end of the straps to the rear,
lower tie-down hooks.
352

7. Position the tire edge against the rear center
end of the oor panel. Pull the end of the
straps to make sure the tire is secure.
Use the following diagram as a guide for storing
the compact spare tire once you are done using it.A. Jack
B. Wheel Wrench
C. BoltD. Spare Tire
E. Jack Handle
F. Nut
Return the jack (A), jack handle (E), wheel
wrench (B) and compact spare tire to the storage
area. When storing the compact spare tire, put it in
place with the inner side of the wheel facing up.
353