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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 (photo 1 of 5)

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

2022 photoAlexander MiglCC BY-SA 4.0via Wikimedia Commons

Overview

Body
Standard Pickup Trucks 4WDEPA, from EPA, last updated 6/22/2026
Transmission
Automatic 8-spdEPA, from EPA, last updated 6/22/2026

Engine & performance

Power to weight
0.060 hp/lb
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/22/2026

Efficiency

Smog score
7/10
Real-world MPG
20.3 mpg, reported by 3 driversabout 1.3 mpg above the EPA combined estimate
SmartWay certified
No

Dimensions & capacity

Safety NHTSA record 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
292 See on NHTSA
Reported injuries
7

Reported problems NHTSA record NHTSA owner complaints, model year

  • STEERING21%
  • POWER TRAIN16%
  • ENGINE12%
  • ELECTRICAL SYSTEM10%
  • SUSPENSION9%
  • UNKNOWN OR OTHER6%

Source: NHTSA owner complaints, 454 total.

Jeep Gladiator: best and worst years

Federal investigations NHTSA record 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

Source: www.cars.com as of 2026-06

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.