Hummer 2006 H3 - Manual (Page 261)

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 first 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
• Then, during the first 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.
• If you have an automatic transmission, you can
tow 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. If you have a
manual transmission and you are towing a trailer,
it is better not to use the highest gear.
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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