4X4 Truck Guide
Full-size Electric

2026 GMC Sierra EV

1st generation (fueleconomy.gov listings begin with the 2025 model year)

Spec plateChecked Sep 2026

Starting price
$62,400
AWD/4x4 from
$62,400
Max towing
12,500 lb
Max payload
2,250 lb
Most power
760 hp
Ground clearance
—
———
Approach · Breakover · Departure
AT4

Our verdict

The Sierra EV AT4 brings a real lift, 35-inch tires and four-wheel steer to a quiet, long-range electric truck. GMC hasn't published its off-road angles and there's no locker, so it's best on dirt roads and moderate trails. Shoppers who don't need the GMC cabin should compare it with the similar, cheaper Silverado EV Trail Boss.

Best for

Buyers who want a premium electric full-size truck with long range and enough lift and tire on the AT4 for rough roads and easy trails.

Skip it if

You need lockers, a low range or published off-road geometry, or you want the same hardware for less money in the Chevrolet Silverado EV Trail Boss.

Strengths

  • Up to 478 mi GM-estimated range with the Max Range battery
  • Up to 12,500 lb towing (12,300 lb on AT4)
  • AT4: 2-inch lift, 35-inch all-terrain tires and four-wheel steer with CrabWalk
  • MultiPro Midgate stretches load length to 10 ft 10 in
  • Super Cruise standard on AT4 and Denali

Weak spots

  • No locking differentials and no low range
  • GMC hasn't published AT4 ground clearance or approach, departure and breakover angles
  • AT4 starts at $79,300 and a Max Range AT4 at $89,600 (Edmunds)

Capability vs other electric trucks

Max towing12,500 lb

Class best in our database

Max payload2,250 lb

90% of the class best (2,500 lb)

Ground clearanceNot published

Cabs
Crew Cab
Bed lengths
5.9 ft
Efficiency / range
EPA-estimated 283–410 mi (2026 Standard and Extended Range, 64–68 MPGe combined); GM-estimated up to 478 mi with the Max Range battery
EPA range
Up to 478 mi
Pricing notes
gmc.com 'starting at' MSRP for the 2026 Sierra EV Elevation (Standard Range); Denali starts at $69,700 and AT4 at $79,300. Every Sierra EV is 2-motor e4WD. Edmunds lists AT4 Max Range at $89,600 and Denali Max Range at $98,600.
Configurations
Crew cab only with a 5-ft 11-in bed (70.5 in at the floor, tailgate closed); the available MultiPro Midgate extends load length to 10 ft 10 in. Power-open eTrunk of 11 cu ft.

Off-road hardware

4WD / AWD system

Every Sierra EV uses GM's 2-motor e4WD, with one drive unit on each axle, no transfer case and no low range. Four-wheel steer with CrabWalk (diagonal movement at low speed) is standard on AT4 and available on Denali; Air Ride Adaptive Suspension is available on Denali. AT4 adds an exclusive Terrain drive mode. GMC does not list a locking differential.

Locking differentials

None listed by GMC; traction is managed by the 2-motor e4WD system and electronic traction control.

Off-road geometry — AT4
Approach angleNot published
Breakover angleNot published
Departure angleNot published
Ground clearanceNot published
Water fordingNot published

Off-road tech

  • Four-wheel steer with CrabWalk (standard on AT4)
  • Terrain drive mode (AT4 only) plus Off-Road mode
  • Air Ride Adaptive Suspension (available on Denali)
  • Up to 14 available camera views
  • Red front recovery hooks (AT4)

Motors & output

SetupPowerTorqueTransmission
2-motor e4WD, Standard Range batteryElevation and Denali; EPA 283 mi. 605 hp is GMC's 'best-in-class standard' rating; torque from GMC's competitive comparison. 605 hp 605 lb-ft single-speed
2-motor e4WD, Extended Range batteryAT4 figures (GM-est. 390 mi); Elevation Extended Range is rated up to 645 hp and 765 lb-ft with EPA 410 mi. 725 hp 775 lb-ft single-speed
2-motor e4WD, Max Range batteryMaximum available output in Max Power mode per GMC; Max Range is available on AT4 and Denali, GM-estimated up to 478 mi. 760 hp 785 lb-ft single-speed

The off-road trims

AT4

Factory 2-inch suspension lift with 35-inch all-terrain tires on 18-inch wheels (2 inches of added clearance), AT4-only Terrain mode, standard four-wheel steer with CrabWalk, red recovery hooks and up to 12,300 lb towing; GM-est. 390 mi, or 478 mi with Max Range.

What's new for 2026

A Standard Range battery (EPA 283 mi) is the new entry point, with Elevation from $62,400 and a best-in-class standard 605 hp per GMC. EPA listings show more powerful drive units for 2026 (255/256 kW vs. 189/189 kW for 2025).

Rivals worth a look

Chevrolet Silverado EV Sierra EV vs Silverado EV
Ford F-150 Lightning Sierra EV vs F-150 Lightning
Rivian R1T Sierra EV vs R1T
Tesla Cybertruck Sierra EV vs Cybertruck

Sources & data notes

These specs were checked on September 24, 2026 against the sources below, starting with the manufacturer's own material. When a figure isn't published, we leave it blank instead of estimating. Ratings are maximums for the best-equipped configuration; confirm yours on the door-jamb labels.

Sources for this page 8
  1. gmc.comgmc.com/electric/sierra-ev
  2. gmc.comgmc.com/electric/sierra-ev/at4
  3. gmc.comgmc.com/electric/sierra-ev/elevation
  4. gmc.comgmc.com/content/experience-fragments/gmc/na/us/en/index/vehicles/2026/electric/my26-sierra-ev/at4/modals_gbds/capability/responsive-power/master.html
  5. gmc.comgmc.com/content/experience-fragments/gmc/na/us/en/index/vehicles/2026/electric/my26-sierra-ev/at4/modals_gbds/capability/selectable-drive-modes/master.html
  6. gmc.comgmc.com/compare-competitors/sierra-ev-vs-rivian-r1t
  7. fueleconomy.govfueleconomy.gov/feg/PowerSearch.do?action=noform&path=1&year1=2026&year2=2026&make=GMC&baseModel=Sierra
  8. edmunds.comedmunds.com/gmc/sierra-ev/2026/

Understand the hardware