Chevrolet 2010 HHR, Owner'S Manual

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But the effect on the rear axle must still be considered.
Because the rear axle now weighs 3,100 lbs (1 406 kg),
900 lbs (408 kg) can be put on the rear axle without
exceeding RGAWR. The effect of tongue weight is
about 1.5 times the actual weight. Dividing the 900 lbs
(408 kg) by 1.5 leaves only 600 lbs (272 kg) of tongue
weight that can be handled. Since tongue weight is
usually at least 10 percent of total loaded trailer weight,
expect that the largest trailer the vehicle can properly
handle is 6,000 lbs (2 721 kg).
It is important that the vehicle does not exceed any of
its ratings
— GCWR, GVWR, RGAWR, Maximum
Trailer Rating or Tongue Weight. The only way to be
sure it is not exceeding any of these ratings is to weigh
the vehicle and trailer.
Total Weight on the Vehicle's Tires
Be sure the vehicle's tires are inflated to the upper
limit for cold tires. These numbers can be found on the
Tire-Loading Information label. See
Loading the Vehicle
on page 5 ‑ 24 . Make sure not to go over the GVW limit
for the vehicle, or the GAWR, including the weight of the
trailer tongue.
Hitches
It is important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough roads are
a few reasons why the right hitch is needed.
. The rear bumper on the vehicle is not intended
for hitches. Do not attach rental hitches or
other bumper-type hitches to it. Use only a
frame-mounted hitch that does not attach to the
bumper.
. Will there be any holes in the body of the vehicle
after installing a trailer hitch? If there are, then
be sure to seal the holes later when the hitch is
removed. If the holes are not sealed, deadly
carbon monoxide (CO) from exhaust can get into
the vehicle. See
Engine Exhaust on page 3 ‑ 39 .
Dirt and water can also enter the vehicle.
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