They include a new eight-speed automatic transmission, replacing a six-speed, and a new 3.6-liter V6 engine that delivers 308 horsepower and 275 pound-feet of torque. That's an improvement of 3 hp and 6 lb-ft compared to the 2016 Colorado's engine.
The new V6 engine features updated variable valve timing, revised direct injection and cylinder deactivation to improve fuel economy. The EPA has not rated the 2017 Colorado.
The new eight-speed transmission features a wider 7.0 overall gear ratio, according to GM.
"This results in a numerically higher first-gear ratio, helping drivers start off more confidently with a heavy load or when trailering," GM said in a statement.
Pricing on the Colorado will be announced closer to its launch.
Edmunds says: A few minor upgrades this year should result in a more fuel-efficient Colorado that doesn't sacrifice performance.