The publication recently put out its annual 10 Least Reliable Vehicles list, which uses data from previous model years to predict the future reliability of certain vehicles. CR studies cars across 17 different potential problem areas and gives them each a reliability score out of 100 after taking a variety of reported problems into consideration, from broken trim pieces and buggy technology to engine and transmission problems and more.
With a Reliability Score of just 26 out of 100, the Chevy Colorado and GMC Canyon midsize pickups are the sixth least reliable vehicles studied by CR for this year’s list. The Volvo XC60 crossover and Tesla Model S electric sedan also received a Reliability Score of 26, tying them with the Colorado and Canyon. The 2021 Chevy Silverado 1500 and 2021 GMC Sierra 1500 are also found on this year’s list.
CR reported seeing recurring “minor” and “major” problems with the six-speed automatic transmission in the Chevy Colorado and GMC Canyon for the 2017, 2018 and 2019 model years, though it saw a reliability improvement in this department for the 2020 model year. Minor issues in the paint/trim, body integrity, body hardware and in-car electronics categories also contributed to the pickups’ poor performance in this reliability-based index.
CR uses some data from its road tests of vehicles when giving a vehicle a Reliability Score, as well, which didn’t play into the trucks’ favor. Judges previously criticized the Chevy and GMC midsize trucks for their “choppy” and “stiff” ride, uncomfortable standard cloth seats, awkward driving position and weak-feeling GM 3.6L LGX V6 engine, further contributing to the poor score.
The Chevy Colorado and GMC Canyon also struggled in last year’s CR Reliability Survey achieving a reliability score of just 4 out of 100, placing the pair among the least reliable vehicles on sale for 2020.
GM introduced some light updates for the 2021 Chevy Colorado and 2021 GMC Canyon, including restyled front and rear fasciae and different trim levels and equipment. It will be interesting to see if the lightly updated versions of the trucks can improve their reliability in next year’s vehicle reliability rankings.