GM pickup fuel economy drops because of chip shortage

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2021 Chevy Silverado LT Trail Boss
2021 Chevy Silverado LT Trail Boss

Certain 2021 Chevy and GMC pickups will be losing fuel economy owed to an ongoing global chip shortage.

Earlier this week, GM told the Detroit Free Press that 2021 Chevrolet Silverado and GMC Sierra trucks spec’d with the 5.3-liter EcoTec3 V8 engine with both six-speed and eight-speed automatic transmissions will lose one mile per gallon (highway and city combined).

“Due to the global shortage of semiconductors impacting the global auto industry, we are making Active Fuel Management/Dynamic Fuel Management unavailable on certain 2021 model year full-size trucks," Michelle Malcho, GM spokesperson, explained on Monday.

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According to, combined fuel economy ratings for 5.3.-liter equipped 2021 GM light-duty pickups currently vary from 18 to 15 mpg depending on transmission and other options.

Increased demand last year for laptops brought on by additional stay-at-home workers amid Covid-19 precautions and restrictions led to a shortage in semiconductors that’s impacting various industries.

GM anticipates up to a $2 billion loss in earnings owed to the chip shortage which is expected to lift by the second half of this year. 

Ford and Ram, which now operates under Stellantis, have also been impacted by the shortage with Ford anticipating a profit loss by as much as $2.5 billion.