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2021 Jeep

Gladiator 4WD

Auto 8-spd, 6 cyl, 3.6 L

Jeep Gladiator: best and worst years
2021 Jeep Gladiator 4WD

Closest available photo (2022 model year); you're viewing the 2021.

2022 photodeathpallie325CC BY-SA 4.0Wikimedia Commons

Overview

Body
Standard Pickup Trucks 4WDEPA, from EPA, last updated 6/22/2026
Drivetrain
4-Wheel DriveEPA, from EPA, last updated 6/22/2026
Transmission
Automatic 8-spdEPA, from EPA, last updated 6/22/2026
Powertrain
GasEPA, from EPA, last updated 6/22/2026
Fuel
RegularEPA, from EPA, last updated 6/22/2026

Engine & performance

Cyl
6EPA, from EPA, last updated 6/22/2026
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/22/2026
Start-stop system
YesEPA, from EPA, last updated 6/22/2026

Efficiency

MPG Hwy
22 mpgEPA, from EPA, last updated 6/22/2026
MPG City
17 mpgEPA, from EPA, last updated 6/22/2026
MPG Comb
19 mpgEPA, from EPA, last updated 6/22/2026
Fuel $/yr
$3,300EPA, from EPA, last updated 6/22/2026
CO₂
466 g/miEPA, from EPA, last updated 6/22/2026
Eco Score
3/10EPA, from EPA, last updated 6/22/2026
Smog score
7/10
Elec. Range
0 miEPA, from EPA, last updated 6/22/2026
Real-world MPG
20.3 mpg, reported by 3 driversabout 1.3 mpg above the EPA combined estimate
SmartWay certified
No

Dimensions & capacity

Length
217 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Width
74 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Height
74 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Wheelbase
137 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Curb Weight
4,751 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026

Safety NHTSA, model year

⚠ This model year has a recall advising owners to park outside or away from structures (fire risk). Check with the manufacturer.

Recalls
8
Owner complaints
270
Reported injuries
7

Reported problems NHTSA owner complaints, model year

  • STEERING20%
  • POWER TRAIN15%
  • ENGINE12%
  • ELECTRICAL SYSTEM10%
  • SUSPENSION9%
  • UNKNOWN OR OTHER6%

Source: NHTSA owner complaints, 427 total.

Jeep Gladiator: best and worst years

Federal investigations NHTSA defect investigations, model year

  • PE24024Openopened Sep 6, 2024STEERING:HYDRAULIC POWER ASSIST:PUMP

    Underhood fires

  • EA23001Openopened Mar 17, 2023FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

    High pressure fuel pump failure

Known issues manufacturer service bulletins, model year

477 service bulletins filed with NHTSA for this model year

  • May 13, 2026ELECTRICAL SYSTEM08-208-26 REV. A

    Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.

  • May 7, 2026ELECTRICAL SYSTEM08-208-26

    Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle

  • Mar 27, 2026STRUCTURE:BODYS2623000018

    Wind Noise From Hard Top Freedom Panels Near Rear View Mirror While Driving.

  • Mar 21, 2026ENGINE18-044-26

    Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0111-00 - Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. (In Active or Stor

  • Mar 17, 2026ELECTRICAL SYSTEM16C Combo REV2

    Emissions Recall 16C - Check Engine/Malfunction Indicator Lamp - Dealer Notification (Revision 2)

  • Mar 5, 2026ELECTRICAL SYSTEMS2608000010

    Active Diagnostic Trouble Code (DTC) B1A10-00, B1A11-00, B1A12- 00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH)

  • Mar 4, 2026ELECTRICAL SYSTEMS1408000384 REV.J

    Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

  • Mar 4, 2026ELECTRICAL SYSTEM110610

    LAMP - TAIL

  • and 469 more

Source: NHTSA manufacturer communications (technical service bulletins).

Warranty manufacturer terms, by make

Basic
3 yr / 36k mi
Powertrain
5 yr / 60k mi
Roadside assistance
5 yr / 60k mi
EV battery
8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.