GMC Yukon 2012 Owner's Manual page 353

Trailer tongue weight (A) should be
10 percent to 15 percent of the
loaded trailer weight (B) up to the
maximums for vehicle series and
hitch type.
Vehicle Series
1500
2500
1500
2500
Do not exceed the maximum
allowable tongue weight for the
vehicle. Choose the shortest hitch
extension that will position the hitch
ball closest to the vehicle. This will
help reduce the effect of trailer
tongue weight on the rear axle.
Trailering may be limited by the
vehicle's ability to carry tongue
weight. Tongue weight cannot
cause the vehicle to exceed the
Driving and Operating
Hitch Type
Weight Carrying
Weight Carrying
Weight Distributing
Weight Distributing
GVWR (Gross Vehicle Weight
Rating) or the RGAWR (Rear Gross
Axle Weight Rating). See Total
Weight on the Vehicle's Tires later
in this section for more information.
After loading the trailer, weigh the
trailer and then the tongue,
separately, to see if the weights are
proper. If they are not, adjustments
might be made by moving some
items around in the trailer.
9-77
Maximum Tongue
Weight
272 kg (600 lbs)
453 kg (1,000 lbs)
499 kg (1,100 lbs)
680 kg (1,500 lbs)