← Back to compare hub

GMC Sierra 1500 vs HUMMER H3T

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

GMC logo

2026 GMC Sierra 1500

HUMMER logo

2010 HUMMER H3T

Overview

SpecGMC Sierra 1500ProHUMMER H3TBase
Selected trimProBase
Body styleTruck (Regular Cab)Truck (Crew Cab)
Drivetrainrear wheel drivefour wheel drive
Fuel typeregular unleadedregular unleaded
Transmission8-speed shiftable automatic5-speed manual
Engine typegasgas
Model year20262010

Pricing & market

SpecGMC Sierra 1500ProHUMMER H3TBase
MSRP$38,300$30,915 (best)
Lowest listing price$25,398 (best)—
Median listing price$59,662 (best)—
Highest listing price$90,344 (best)—
For sale now42 (best)0

Fuel economy & range

SpecGMC Sierra 1500ProHUMMER H3TBase
Combined MPG20 MPG (best)15 MPG
City MPG18 MPG (best)14 MPG
Highway MPG21 MPG (best)18 MPG
Fuel tank24 gal27 gal (best)

Performance

SpecGMC Sierra 1500ProHUMMER H3TBase
Horsepower310 hp (best)239 hp
Torque430 lb-ft (best)241 lb-ft
Engine size2.7 L3.7 L (best)
CylindersI4I5

Size & capability

SpecGMC Sierra 1500ProHUMMER H3TBase
Seating3 seats5 seats (best)
Doors24 (best)
Cargo volume—33.5 cu ft (best)
Towing capacity9,000 lbs (best)4,400 lbs
Payload2,230 lbs (best)1,090 lbs
Curb weight4,440 lbs (best)4,911 lbs
Ground clearance7.9 in9.5 in (best)
Wheelbase126 in134.2 in (best)
Length211 in212.7 in (best)
Width81.2 in (best)75 in
Height75.7 in (best)72.1 in

Safety & recalls

SpecGMC Sierra 1500ProHUMMER H3TBase
NHTSA overall5 / 5 ★ (best)—
Frontal crash (driver)5 / 5 ★ (best)—
Frontal crash (passenger)5 / 5 ★ (best)—
Side crash (driver)5 / 5 ★ (best)—
Side crash (passenger)Not Rated—
Side pole5 / 5 ★ (best)—
Rollover4 / 5 ★ (best)—
Open recalls (YMM scope)2None reported (best)

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimGMC Sierra 1500HUMMER H3T
1

Pro

$38,300 MSRP(Currently comparing)

Base

$30,915 MSRP(Currently comparing)

2

Pro

$38,500 MSRP

Alpha

$35,680 MSRP

3

Pro

$41,600 MSRP

Alpha

$39,205 MSRP

4

Pro

$44,200 MSRP

—
5

Pro

$42,900 MSRP

—
6

Pro

$43,100 MSRP

—
7

Pro

$44,900 MSRP

—
8

Pro

$47,500 MSRP

—
9

Pro

$47,800 MSRP

—
10

SLE

$48,700 MSRP

—
11

SLE

$51,300 MSRP

—
12

SLE

$52,000 MSRP

—
13

SLE

$54,600 MSRP

—
14

SLE

$54,900 MSRP

—
15

Elevation

$50,500 MSRP

—
16

Elevation

$53,300 MSRP

—
17

Elevation

$50,800 MSRP

—
18

Elevation

$53,600 MSRP

—
19

Elevation

$53,800 MSRP

—
20

Elevation

$56,600 MSRP

—
21

Elevation

$56,900 MSRP

—
22

SLT

$55,100 MSRP

—
23

SLT

$58,200 MSRP

—
24

SLT

$58,900 MSRP

—
25

Denali

$66,100 MSRP

—
26

Denali

$69,400 MSRP

—
27

Denali

$69,900 MSRP

—
28

AT4

$67,000 MSRP

—
29

AT4

$67,500 MSRP

—
30

AT4X

$79,600 MSRP

—
31

Denali Ultimate

$84,400 MSRP

—

Live inventory

GMC Sierra 1500 vs HUMMER H3T FAQ

Which is better: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
It depends on priorities. OpenDealer compares 2026 GMC Sierra 1500 vs 2010 HUMMER H3T on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
Based on starting MSRP, the 2010 HUMMER H3T starts lower at $30,915. Live GMC Sierra 1500 listings start at $25,398.
Which has better startingMsrp: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
The 2010 HUMMER H3T leads on startingMsrp in this comparison (30,915).
Which has better combinedMpg: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
The 2026 GMC Sierra 1500 leads on combinedMpg in this comparison (23).
Which has better horsepower: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
The 2026 GMC Sierra 1500 leads on horsepower in this comparison (420).
Which has better seats: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
The 2026 GMC Sierra 1500 leads on seats in this comparison (6).
Which has better maxTowingLbs: 2026 GMC Sierra 1500 or 2010 HUMMER H3T?
The 2026 GMC Sierra 1500 leads on maxTowingLbs in this comparison (13,300).
How do the NHTSA safety ratings compare for 2026 GMC Sierra 1500 vs 2010 HUMMER H3T?
NHTSA overall crash-test ratings in this comparison: GMC Sierra 1500 (5/5 NHTSA overall).