UPDATE: following the publication of this article, GM Authority learned that 2023 Colorado units equipped with the 2.7L Turbo Plus and Turbo High Output L3B engines were scheduled to start shipping on March 13th, but that date was pushed back as the EPA has yet to release official fuel economy ratings for the L3B engine tunes.
A few weeks ago, GM Authority exclusively reported that new units of the 2023 Chevy Colorado had begun shipping to dealers as of February 28th, 2023 following the start of regular production (SORP) a month prior on January 25th. Now, however, we’ve learned that only certain units of the 2023 Chevy Colorado are currently being shipped.
Per GM Authority sources, only units of the 2023 Chevy Colorado equipped with the turbocharged 2.7 I4 L2R gasoline engine are currently being sent to dealers. As such, 2023 Chevy Colorado WT and LT trim levels are the only ones being shipped at the moment.
For those readers who may not remember, the 2023 Chevy Colorado offers the turbocharged 2.7L I4 L3B gasoline engine as the exclusive powerplant option. However, the engine is available in three distinct tunes, depending on the trim level selected, with WT and LT models equipped as standard with the “base” 2.7L Turbo tune, which gets its own RPO code (L2R) and is rated at 237 horsepower and 260 pound-feet of torque. Further engine options in the 2023 Chevy Colorado lineup include the 2.7L Turbo Plus, which is rated at 310 horsepower and 391 pound-feet of torque, and the 2.7L Turbo High-Output tune, which is rated at 310 horsepower and 430 pound-feet of torque.
The gap between the SORP late in January and the first shipments late in February was the result of the EPA’s finalization of the truck’s fuel economy ratings. As GM Authority reported previously, GM was unable to deliver new units of the 2023 Chevy Colorado until the fuel economy ratings were finalized.
Official fuel economy ratings have since been released, likely pertaining to units of Chevy Colorado equipped with the L2R engine. It’s unclear at this time if there will be separate ratings for 2023 Chevy Colorado units equipped with the Turbo Plus L3B and 2.7L Turbo High-Output L3B engines. GM expects to begin shipping new units of the 2023 Chevy Colorado equipped with the two more-powerful engine tunes starting Monday, March 13th, 2023.