2023 Chevrolet Suburban 4WDFuel Economy & MPG Ratings

Diesel Standard Sport Utility Vehicle 4WD4-Wheel Drive
City
20
MPG
Highway
26
MPG
Combined
22
MPG

Trim Comparison

Automatic 10-spd
Diesel Diesel
City
20
Hwy
26
Comb
22
Fuel cost: $3,850/yr
Automatic 10-spd
Premium
City
14
Hwy
18
Comb
16
Fuel cost: $5,100/yr
Automatic 10-spd
Regular
City
15
Hwy
19
Comb
16
Fuel cost: $4,200/yr
Annual Fuel Cost
$3,850

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

5-Year Fuel Savings
$-7,250

vs. average new vehicle

EPA Fuel Economy Score: 5/10
GHG Score: 4/10

Environment

CO₂ Tailpipe Emissions
462 g/mile
Annual Petroleum Consumption
16.2 barrels

Specifications

Engine
6.2L 6-cyl
Transmission
10-speed Automatic
Drivetrain
4WD
Body Style
SUV/Crossover
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$3,061/yr
California
$5.957/gal$4,062/yr
Texas
$3.888/gal$2,651/yr
Florida
$4.136/gal$2,820/yr
New York
$4.522/gal$3,083/yr
Ohio
$4.510/gal$3,075/yr
Washington
$5.591/gal$3,812/yr
Colorado
$4.618/gal$3,149/yr
Minnesota
$4.344/gal$2,962/yr
Massachusetts
$4.448/gal$3,033/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 22 MPG combined. Regular gasoline prices. Actual costs vary.

NHTSA Safety Ratings

Source: NHTSA (nhtsa.gov)
Overall Safety Rating
4/5
2023 Chevrolet Suburban SUV 4WD

Crash Test Scores

Front Crash — Overall
Front Crash — Driver Side
Front Crash — Passenger Side
Side Crash — Overall
Side Crash — Driver Side
Side Crash — Passenger Side
Side Pole Crash
Rollover
Rollover Probability0.0%

Safety Equipment

Forward Collision Warning: Standard & OptionalLane Departure Warning: Standard & Optional
100
Owner Complaints
3
Recalls
3
Investigations

Recall History3

Source: NHTSA

Owner-Reported Problems100 complaints

Source: NHTSA

NHTSA has received 100 owner complaints for the 2023 Chevrolet Suburban 4WD. Top reported issues include engine, electrical system and power train. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Engine
60
Electrical System
12
Power Train
9
Brakes
5
Visibility / Wipers
5
Seat Belts
4
Advanced Safety (ADAS)
4
Structure
4

2023 Chevrolet Suburban 4WD problems by category: Engine: 60 complaints, Electrical System: 12 complaints, Power Train: 9 complaints, Brakes: 5 complaints, Visibility / Wipers: 5 complaints, Seat Belts: 4 complaints, Advanced Safety (ADAS): 4 complaints, Structure: 4 complaints.

0
Crashes Reported
0
Fires Reported
3
Injuries Reported

Sample Owner Complaints

Power TrainFiled: 02/03/2026ODI#11715199
My 2023 Chevy Suburban High Country had the L87 Engine Loss of Propulsion (Related field action: See Special Coverage N252494003) recall performed on it and completed on August 15, 2025. Higher viscos…
EngineFiled: 11/17/2025ODI#11699730
My 2023 Chevrolet Suburban High Country (VIN: [XXX] ) suffered a sudden and dangerous engine failure while my wife was driving 70 mph on the interstate returning from our child’s sled hockey tournamen…
Electrical SystemFiled: 07/12/2025ODI#11673098
Issue: The vehicle intermittently displays a “Key Not Found” or “No Key Detected” message on the dash and refuses to start, despite both original factory-issued key fobs being present and having fresh…

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.

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Chevrolet Suburban 4WD MPG History
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