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If You Do 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.
Consider using a sway control. See “Hitches” later
in this section.
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.
You can tow in DRIVE (D). You may want to shift
the transmission to THIRD (3) or, if necessary, a
lower gear selection if the transmission shifts
too often (e.g., under heavy loads and/or hilly
conditions).
Three important considerations have to do with weight:
the weight of the trailer,
the weight of the trailer tongue
and the 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.
Look in the following chart to nd the maximum trailer weight for your vehicle.
Vehicle Axle Ratio Max.Trailer Wt. *GCWR
2WD Envoy (L6 Engine)3.42 5,300 lbs (2 404 kg) 10,000 lbs (4 536 kg)
3.73 5,800 lbs (2 631 kg) 10,500 lbs (4 763 kg)
4.10 6,300 lbs (2 858 kg) 11,000 lbs (4 990 kg)
4WD Envoy (L6 Engine)3.42 5,100 lbs (2 313 kg) 10,000 lbs (4 536 kg)
3.73 5,600 lbs (2 540 kg) 10,500 lbs (4 763 kg)
4.10 6,100 lbs (2 767 kg) 11,000 lbs (4 990 kg)
2WD Envoy XL (L6 Engine)3.42 5,000 lbs (2 268 kg) 10,000 lbs (4 536 kg)
3.73 5,500 lbs (2 495 kg) 10,500 lbs (4 763 kg)
4.10 6,000 lbs (2 722 kg) 11,000 lbs (4 990 kg)
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Vehicle Axle Ratio Max.Trailer Wt. *GCWR
4WD Envoy XL (L6 Engine)3.42 4,800 lbs (2 177 kg) 10,000 lbs (4 536 kg)
3.73 5,300 lbs (2 404 kg) 10,500 lbs (4 763 kg)
4.10 5,800 lbs (2 631 kg) 11,000 lbs (4 990 kg)
2WD Envoy XL (V8 Engine)3.42 5,900 lbs (2 676 kg) 11,000 lbs (4 990 kg)
3.73 7,000 lbs (3 175 kg) 12,500 lbs (5 670 kg)
4WD Envoy XL (V8 Engine)3.42 5,700 lbs (2 585 kg) 11,000 lbs (4 990 kg)
3.73 6,500 lbs (2 948 kg) 12,500 lbs (5 670 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 conversion. The GCWR for your vehicle should
not be exceeded.
You can ask your dealer for our 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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Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can not see or smell CO. It can cause
unconsciousness or death. SeeEngine
Exhaust on page 2-34. To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
CAUTION: (Continued)
CAUTION: (Continued)
If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main heating
or cooling system on and with the fan on
any speed. This will bring fresh, outside air
into your vehicle. Do not use the climate
control setting for maximum air because it
only recirculates the air inside your vehicle.
SeeDual Climate Control System on
page 3-21orDual Automatic Climate
Control System on page 3-23.
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.
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