2003 CHEVROLET SSR Owners Manual

If yours was built with trailering options, as many are,
it’s ready for heavier trailers. But trailering is different
than just driving your vehicle by itself. Trailering means
changes in handling, acceleration, braking, durability
and fuel economy. Successful, safe trailering takes
correct equipment, and it has to be used properly.
That’s the reason for this part. In it are many time-tested,
important trailering tips and safety rules. Many of
these are important for your safety and that of your
passengers. So please read this section carefully before
you pull a trailer.
If You Decide To Pull A Trailer
If you do, here are some important points:
There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live
but also where you’ll be driving. A good source for
this information can be state or provincial police.
Don’t tow a trailer at all during the rst 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
Then, during the rst 500 miles (800 km) that you
tow a trailer, don’t drive over 50 mph (80 km/h)
and don’t make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at
the heavier loads.
Tow the trailer in DRIVE (D). You may want to shift
the transmission to THIRD (3) or, if necessary, a
lower gear if the transmission shifts too often under
heavy loads and/or hilly conditions.
Three important considerations have to do with weight:
Weight of the trailer
Weight of the trailer tongue
Weight on your vehicle’s tires
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Weight of the Trailer
How heavy can a trailer safely be?
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. And, it can also depend
on any special equipment that you have on your vehicle.
Maximum trailer weight is calculated assuming the
driver and one passenger are 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. The weight of the trailer tongue
also affects the maximum trailer weight. See “Weight
of the Trailer Tongue” later in this section.Your vehicle is a two-wheel drive vehicle. The axle ratio
is 3.73, the maximum trailer weight is 2,500 lbs.
(1 134 kg) and the Gross Combination Weight Rating
(GCWR) is 8,000 lbs. (3 629 kg).
The Gross Combination Weight Rating (GCWR) is the
total allowable weight of the completely loaded
vehicle and trailer including any passengers, cargo,
equipment and conversions. The GCWR for your vehicle
should not be exceeded.
You can ask your dealer for trailering information or
advice, or you can write us at the address listed in your
Warranty and Owner Assistance Information Booklet.
In Canada, write to:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
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Weight of the Trailer Tongue
The tongue load (A) of any trailer is an important weight
to measure because it affects the total 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. If you have a lot of options, equipment,
passengers or cargo in your vehicle, it will reduce the
tongue weight your vehicle can carry, which will
also reduce the trailer weight your vehicle can tow. And
if you will 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 4-31
for more information about your vehicle’s maximum
load capacity.The trailer tongue weight (A) should be 10 percent to
15 percent of the total loaded trailer weight, up to
a maximum of 250 lbs (113 kg) with the equipped hitch.
Do not exceed the maximum allowable tongue weight
for your vehicle. Only use the equipped hitch that comes
with your vehicle.
After you’ve loaded your trailer, weigh the trailer
and then the tongue, separately to see if the weights
are proper. If they aren’t, you may be able to get
them right simply by moving some items around in
the trailer.
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Total Weight on Your Vehicle’s Tires
Be sure your vehicle’s tires are inated to the upper limit
for cold tires. You’ll nd these numbers on the
Certication label at the rear edge of the driver’s door.
SeeLoading Your Vehicle on page 4-31. Then be
sure you don’t go over the GVW limit for your vehicle,
including the weight of the trailer tongue.
Hitches
Your vehicle is compatible only with the following
trailering hitch. To order this hitch, see your dealer.
A. Centering Device
B. Handwheel
C. LockD. Ball Rod
E. Ball (purchased
separately)
F. Chain Loop
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Installing the Ball Rod
To install the ball rod do the following:
1. Remove the cover of the housing located behind
the license plate area by pushing in the tabs and
pulling downward.2. Be sure the unit is unlocked before pretensioning.
Unlock using the key.
Then pretension the ball rod by pulling out the
handwheel and turning it counterclockwise. When
the ball is pretensioned, it means:
The red area of the handwheel should be
opposite the white marking on the ball rod.
The key cannot be withdrawn.
The ball rod can only be installed in this position.
If the key is inserted and the lock is open,
tighten the handwheel slightly and turn clockwise
as far as the stop. Insert the ball rod as far
into the housing as it will go. When this happens,
you will hear the lock engage.
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3. Check that the ball rod is tight by doing
the following:
Close the lock, withdraw the key, and install the
lock cover securely.
The green area on the handwheel should be
opposite the white dot on the ball rod.
Move the hitch back and forth to ensure it is
properly secured.
If you cannot complete all of the above checks, repeat
the assembly procedure.
Removing the Ball Rod
To remove the ball rod do the following:
1. Open the lock cover on the handwheel and unlock
with the key.
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2. Hold the ball rod tight with one hand, tighten the
handwheel slightly and turn it clockwise as far as
it will go.
3. Pull the ball rod down and off. Store the ball rod for
future use.4. Reinstall the housing cover.
Safety Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the
tongue of the trailer to help prevent the tongue from
contacting 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. Never allow
safety chains to drag on the ground.
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Trailer Brakes
If your trailer weighs more than 1,000 lbs. (450 kg)
loaded, then it needs its own brakes—and they must be
adequate. Be sure to read and follow the instructions
for the trailer brakes so you’ll be able to install,
adjust and maintain them properly.
Your trailer’s brake system can tap into the vehicle’s
hydraulic brake system only if:
The trailer parts can withstand 3,000 psi
(20 650 kPa) of pressure.
The trailer’s brake system will use less than
0.02 cubic inch (0.3 cc) of uid from your vehicle’s
master cylinder. Otherwise, both braking systems
won’t work well. You could even lose your brakes.
If everything checks out this far, then make the brake
uid tap at the port on the master cylinder that
sends uid to the rear brakes. But don’t use copper
tubing for this. If you do, it will bend and nally break off.
Use steel brake tubing.
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 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’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
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