EPA Documents for the 2022 GMC Hummer EV Reveal MPGe, Weight, and Other Information

2022 GMC Hummer EV – Overview

When the GMC Hummer EV pickup was introduced more than a year ago, General Motors claimed that it could drive 350 miles on a single charge of its 200.0-kWh Ultium battery, exceeding the EPA’s estimations for the Rivian R1T, the first electric truck to hit the market.

However, GM recently filed test data with the Environmental Protection Agency (EPA) that clarifies those claims and reveals several other intriguing aspects about the $110,295 Edition 1 electric pickup.

Here are the major Highlights of the 2022 GMC Hummer EV:

  • The EPA received preliminary test paperwork from General Motors, revealing fascinating details about the 2022 GMC Hummer EV Edition 1 pickup.
  • According to GM’s test data, the new electric vehicle will cover 329 miles on a single charge with 212.7 kWh of valuable energy and score 47 MPGe combined.
  • The Hummer may weigh up to 9063 pounds, with the large battery alone weighing in at 2923 pounds.

Battery Power & Range

2022 GMC Hummer EV
2022 GMC Hummer EV

According to the paper, the Edition 1 model, which was the only one available at arrival, comes with an Ultium battery with a usable capacity of 212.7 kWh, which is higher than the Ford F-150 Lightning’s 131.0-kWh Extended Range battery pack and the Rivian R1128.9-kWh T’s lithium-ion battery pack.

According to EPA files, the Hummer will have a combined range of 329 miles while consuming 47 MPGe EPA, which is 33 percent less than the Rivian’s 70 MPGe rating.

It’s worth noting that the range statistic outperforms Rivian’s 314-mile rating, as well as Ford’s 300-mile Lightning projection.

2022 GMC Hummer EV
2022 GMC Hummer EV

In addition, the Hummer’s front and rear reduction ratios are over 30% different (13.3:1 in front, 10.5:1 in back), indicating that the primary power source is likely shifted to whichever axle is more economical under varied driving conditions.

According to a GMC spokesperson, the Hummer’s MPGe figures will not be displayed on its window sticker because vehicles with a gross vehicle weight rating (GVWR) of more than 8500 pounds are not required to do so.

2022 GMC Hummer EV
2022 GMC Hummer EV

As a result, they are 51 MPGe in the city, 43 MPGe on the highway, and 47 MPGe combined. So instead, Rivian chooses to display those values on the R1T, slightly over 8500 pounds GVWR. 

A battery capacity of 617 amp-hours is also shown in the data. When multiplied by the 400-volt operating voltage, 246.8 kWh is obtained, which corresponds to the gross capacity of the double-stacked pack.

That means its usable capacity is 86 percent of total capacity, which is lower than what we’re seeing in other electric vehicles today, where the ratio is generally closer to 90 percent.

Perhaps this is why the Hummer EV’s losses when charging from empty to complete on a 240-volt Level 2 outlet listed as 10% in these documents are slightly lower than the nearly 12 percent average of other EVs tested by the EPA.


The massive battery pack alone weighs 2923 pounds, nearly as much as a Honda Civic. In the EPA document, GMC claims a curb weight of 9063 pounds, approximately 2000 pounds more than the Rivian R1T Launch Edition we just tested.

Date of Launch

According to GMC, this test is the ultimate certification for the Hummer 2022 model year. More affordable variants will be available in the following years, including a dual-motor base model in 2024.

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