2024 GMC Sierra 4WD AT4XFuel Economy & MPG Ratings

Diesel Standard Pickup Trucks 4WD4-Wheel Drive
City
19
MPG
Highway
20
MPG
Combined
19
MPG

Trim Comparison

Automatic 10-spd
Diesel Diesel
City
19
Hwy
20
Comb
19
Fuel cost: $4,450/yr
Automatic 10-spd
Premium
City
14
Hwy
16
Comb
15
Fuel cost: $5,450/yr
Annual Fuel Cost
$4,450

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-10,250

vs. average new vehicle

EPA Fuel Economy Score: 4/10
GHG Score: 3/10

Environment

CO₂ Tailpipe Emissions
524 g/mile
Annual Petroleum Consumption
18.8 barrels

Specifications

Engine
6.2L 8-cyl
Transmission
10-speed Automatic
Drivetrain
4WD
Body Style
Pickup Truck
GVWR
Class 2-3 (6,001–10,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
3L, 6-cylinder
Efficiency Tech
Auto Start-Stop
Fuel Type
Diesel

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$3,545/yr
California
$5.957/gal$4,703/yr
Texas
$3.888/gal$3,069/yr
Florida
$4.136/gal$3,265/yr
New York
$4.522/gal$3,570/yr
Ohio
$4.510/gal$3,561/yr
Washington
$5.591/gal$4,414/yr
Colorado
$4.618/gal$3,646/yr
Minnesota
$4.344/gal$3,429/yr
Massachusetts
$4.448/gal$3,512/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 19 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems291 complaints

Source: NHTSA

NHTSA has received 291 owner complaints for the 2024 GMC Sierra 4WD AT4X. Top reported issues include engine, power train and electrical system. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Engine
162
Power Train
55
Electrical System
37
Structure
19
Advanced Safety (ADAS)
15
Lighting
14
Fuel System
14
Brakes
11

2024 GMC Sierra 4WD AT4X problems by category: Engine: 162 complaints, Power Train: 55 complaints, Electrical System: 37 complaints, Structure: 19 complaints, Advanced Safety (ADAS): 15 complaints, Lighting: 14 complaints, Fuel System: 14 complaints, Brakes: 11 complaints.

5
Crashes Reported
0
Fires Reported
12
Injuries Reported

Sample Owner Complaints

Power TrainFiled: 10/28/20251 InjuryODI#11695972
On October 23rd at approximately 0900-0915 hours I arrived at a friends house located at [XXX] . As I normally do, I pulled up into the driveway which has a pretty significant incline. I shifted the …
Electrical SystemFiled: 08/13/2025ODI#11680307
On [XXX] while traveling on a highway, the vehicle lost drive power—the gear selector would not remain in Drive and reverted to Neutral for approximately 10 minutes. This created a serious safety haza…
Electrical SystemFiled: 06/09/2025ODI#11665735
Subject: Urgent Safety Complaint Dear GMC Customer Service, I hope this message nds you well. I am formally reporting a serious safety issue with my GMC vehicle. The car has experienced multiple dange…

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

GMC Sierra 4WD AT4X MPG History
See how this model's fuel economy changed by year

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