2020 Jeep Gladiator Service and Repair Manual

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Factory-Grade Data

2020 Jeep Gladiator service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Mojave Crew Cab Pickup 4-Door
  • Launch Edition Crew Cab Pickup 4-Door
  • Overland Crew Cab Pickup 4-Door
  • North Edition Crew Cab Pickup 4-Door
  • Sport Crew Cab Pickup 4-Door
  • Altitude Crew Cab Pickup 4-Door
  • Rubicon Crew Cab Pickup 4-Door
  • Sport S Crew Cab Pickup 4-Door

Engines covered

  • 3.6L 3604CC 220Cu. In. V6 GAS DOHC Naturally Aspirated
  • --

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2020 Jeep Gladiator Recalls & Complaints

NHTSA #19V63600029/08/2019Component: POWER TRAIN:DRIVELINE:DRIVESHAFT

Chrysler (FCA US LLC) is recalling certain 2020 Jeep Gladiator vehicles. The rear driveshafts may have been incorrectly assembled without grease in the monoblock joint.

Consequence

A joint without grease may overheat and seize, possibly causing the driveshaft to fracture, resultin

Remedy

FCA US will notify owners, and dealers will replace the driveshaft, free of charge. The recall bega

NHTSA #21V02800028/01/2021Component: POWER TRAIN:CLUTCH ASSEMBLY

Chrysler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence

Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby

Remedy

FCA US LLC will notify owners, and dealers will add software to reduce engine torque capability when

NHTSA #20V58000024/09/2020Component: SEAT BELTS

Chrysler (FCA US LLC) is recalling certain 2019 Jeep Wrangler and Ram 2500, 2019-2020 Ram 1500 and 2020 Jeep Gladiator vehicles. In the event of a crash, a front seat belt retractor may not properly

Consequence

In the event of a crash, if the front seat belts fail to lock, there is an increased risk of injury.

Remedy

Chrysler will notify owners, and dealers will replace the front seat belt retractors, free of charge

NHTSA #23V11600023/02/2023Component: POWER TRAIN:CLUTCH ASSEMBLY

Chrysler (FCA US, LLC) is recalling certain 2018-2023 Jeep Wrangler, and 2020-2023 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence

Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby

Remedy

Dealers will replace the clutch assembly and update the software, free of charge. Owner notificatio

NHTSA #20V19100010/09/2020Component: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Chrysler (FCA US LLC) is recalling certain 2020 Jeep Gladiator and Jeep Cherokee, 2019-2020 Ram 1500 Pickup, Ram 2500 Pickup, Ram 3500 Pickup, Chrysler Pacifica, Dodge Durango, Jeep Grand Cherokee, Je

Consequence

The lingering rearview image can distract the driver, increasing the risk of a crash.

Remedy

Chrysler has notified owners, and dealers will update the radio display software, free of charge. O

NHTSA #20V12400003/03/2020Component: POWER TRAIN:CLUTCH ASSEMBLY

Chrysler (FCA US LLC) is recalling certain 2018-2020 Jeep Wrangler and 2020 Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence

The overheated clutch components may increase the risk of a fire. Additionally, damage to other nea

Remedy

Chrysler will notify owners, and dealers will reroute a wire harness and inspect the clutch system,

TSB #11032842

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

TSB #11032824

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

TSB #11032647

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

TSB #11030435

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

TSB #11030262

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

TSB #11030229

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 - In

TSB #11030042

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)

TSB #11030035

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

Showing the 8 most recent of 663 technical service bulletins on file with NHTSA.

20231120Component: POWER TRAINCrash reportedFire reported

I was driving on the highway going 80mph in 6th gear and my wife smelled something then the gears started grinding I put it in neutral as I was slowing down I was trying to get to the exit which was a

20200304Component: EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTSCrash reported2 injured

I PURCHASED THE JEEP ON 12/30/2019. IT HAD 1,200 MILES WHEN THE INCIDENT OCCURRED. THE VEHICLE WAS IN MOTION WHEN 4WD AND ABS WARNING LIGHT CAME ON TO INDICATE FAILURE. I HIT THE BRAKES AND NOTHING

20200304Component: SERVICE BRAKESCrash reported2 injured

I PURCHASED THE JEEP ON 12/30/2019. IT HAD 1,200 MILES WHEN THE INCIDENT OCCURRED. THE VEHICLE WAS IN MOTION WHEN 4WD AND ABS WARNING LIGHT CAME ON TO INDICATE FAILURE. I HIT THE BRAKES AND NOTHING

20220806Component: SERVICE BRAKESCrash reported1 injured

My truck malfunctioned at an automatic car wash. It has approximately 54k miles. I had no warning lights or system alerts on vehicle or Uconnect app. I stopped in the parking lot & put the Gladiator

20220806Component: VEHICLE SPEED CONTROLCrash reported1 injured

My truck malfunctioned at an automatic car wash. It has approximately 54k miles. I had no warning lights or system alerts on vehicle or Uconnect app. I stopped in the parking lot & put the Gladiator

Showing the 5 most serious of 623 complaints filed with NHTSA.

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