2017 Chevrolet Colorado ZR2 - Image: ChevroletGeneral Motors evidently hopes you like the Chevrolet Colorado and GMC Canyon the way they are.

The midsize truck twins, which arrived in second-generation form nearly three years ago, won’t be replaced for another five years. 

According to an Auto Forecast Solutions report cited by Autoline Daily, production of the next-generation Chevrolet Colorado and GMC Canyon won’t begin until 2022.

Of course, this doesn’t mean the Colorado and Canyon will forge ahead without updates. Already, General Motors has offered both trucks with a class-exclusive diesel engine, expanded the Canyon lineup to include a Denali model, and presented the Colorado ZR2 as the Raptor of the midsize truck world.

Expect further improvements, additions and alterations over the next half-decade.2017 GMC Canyon SLT Diesel - Image: GMCYes, another half-decade.

Pickup truck lifespans aren’t known to be short – this isn’t a ninth-gen Honda Civic that went from all-new in 2012 to facelifted in 2013 to all-new again in 2016.

Nevertheless, 2022 will be the eighth model year for the Colorado and Canyon. At the top of the pickup heap, the Ford F-150 transitions every six years on average.

But competition in America’s pickup truck arena is scarce, diminishing the need to be the newest and flashiest and freshest. Moreover, as the Colorado and Canyon reach old age, the Ford Ranger will arrive, likely spurring demand just as the Colorado and Canyon spurred greater overall interest in the midsize field in 2014 and 2015.

You’ll recall that, rather than merely grabbing its own slice of the pie, GM’s return to the segment was timed with best-ever Toyota Tacoma sales in 2015 and 2016; 2016 was also the Nissan Frontier’s best showing in 15 years. GM didn’t steal pie from Toyota and Nissan. GM expanded the pie.

If the Ford Ranger can do the same, then General Motors’ two midsize pickup trucks may also reap the benefits of renewed interest in the segment regardless of their old age.

Meanwhile, through 2017’s first five months, U.S. sales of midsize pickup trucks are up 3 percent. The Tacoma, Colorado, Frontier, Canyon, and Honda Ridgeline claim 16 percent of all pickup truck sales. Of the 176,730 midsize pickups sold in America so far this year, 30 percent are Colorados and Canyons.

That’s down from 33 percent a year ago as the Colorado and Canyon, like the Tacoma and Frontier, suffer measurable sales declines.

[Images: General Motors]

Timothy Cain is a contributing analyst at The Truth About Cars and Autofocus.ca and the founder and former editor of GoodCarBadCar.net. Follow on Twitter @timcaincars.