The Canyon comes with 3 options:
DURAMAX DIESEL ENGINE = 2.8 L Diesel = Max trailer rating of up to 7,700 lbs
2.5L 4-CYLINDER (GAS) = Max trailering rating of 3,500 lbs
3.6L V6 (GAS) = Max trailering rating of 7,000 lbs5 (with available Trailering Package)
And the disclaimer foot note at the bottom of the page:
5. Canyon’s 7000-lb rating requires available trailering package and 3.6L V-6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.
6. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.
I do not think you will be towing anything significantly heavy, especially if you have the 4 cylinder gas version.
Remember, if you purchase a trailer that weighs at the max, 7,000 pounds, by the time you add water, propane, camping supplies and equipment, and stock the camper with your personal amenities, that 7000 pound trailer will very quickly increase in weight to 10,000 pounds.
You did the right thing though by coming to these forums and asking questions before you jumped in. If getting a camper is really in your future, you'll really need to consider a heftier truck. Sorry, you might not really have wanted to hear this.
Now, if you decide to go with a pop-up or an A-line or a Hi-Lo type trailer, a tear drop, or a smaller single axle light weight trailer, then your current truck will probably do just time. Before proceeding any further, you need to narrow down the size and weight of the camper that would suit your camping style the most, then make sure your current truck can actually tow it. If not, then adjust either the choice of trailer, or bite the bullet and go for the heftier truck.