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2021 Jeep Gladiator Maintenance Schedule

Manufacturer-recommended service intervals for the Oil Change Indicator and open recall alerts for your 2021 Jeep Gladiator.

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How Jeep schedules service: Oil Change Indicator

Jeep vehicles use the Oil Change Indicator system to signal when oil is due. Wrangler and Gladiator owners who actually use 4WD off-road should treat the schedule below as Schedule A (severe) — water crossings, sand, and rock crawling demand differential and transfer case service at half the published intervals. Grand Cherokee and Cherokee follow the standard Mopar schedule.

7 Open Recalls

Source: NHTSA

POWER TRAIN:CLUTCH ASSEMBLY

Campaign #21V028000 · 28/01/2021

Issue: 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.

Risk: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Fix: FCA US LLC will notify owners, and dealers will add software to reduce engine torque capability when clutch assembly temperatures rise to a level that may damage the inner pressure plate, free of charge." FCA has ordered a stop sale for the affected vehicles as of February 25, 2021. Owner notification letters were mailed on March 4, 2021.

BACK OVER PREVENTION:DISPLAY FUNCTION

Campaign #22V638000 · 25/08/2022

Issue: Chrysler (FCA US, LLC) is recalling certain 2020-2021 Jeep Wrangler, RAM 1500 and 2021 Jeep Gladiator vehicles. A radio software error may prevent the rearview image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Risk: A rearview camera that does not display an image reduces the driver's rear view, increasing the risk of a crash.

Fix: Dealers will update the radio software, free of charge. Owner notification letters were mailed October 6, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA, LLC's number for this recall is Z86.

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Campaign #22V767000 · 13/10/2022

Issue: Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.

Risk: An engine stall can increase the risk of a crash.

Fix: Dealers will replace the HPFP and inspect and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is Z96.

POWER TRAIN:CLUTCH ASSEMBLY

Campaign #23V116000 · 23/02/2023

Issue: 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.

Risk: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Fix: Dealers will replace the clutch assembly and update the software, free of charge. Owner notification letters were mailed from November 16, 2023 through July 25, 2024. Owners may contact (FCA US, LLC) customer service at 1-800-853-1403. FCA US LLC's number for this recall is 19A. This recall expands and replaces previous recall 21V-028. Vehicles previously repaired under recall 21V-028 will need to have the new remedy completed.

FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

Campaign #23V263000 · 13/04/2023

Issue: Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler, Gladiator, and 2022-2023 Ram 1500 vehicles equipped with a 3.0L diesel engine. The high pressure fuel pump (HPFP) may fail.

Risk: Fuel pump failure can result in an engine stall, increasing the risk of a crash.

Fix: Dealers will replace the HPFP and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 01A.

POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE

Campaign #24V572000 · 01/08/2024

Issue: Chrysler (FCA US, LLC) is recalling certain 2021 Jeep Wrangler and Jeep Gladiator vehicles that were previously remedied under NHTSA recall number 23V-116. The software for the powertrain control module may cause an engine stall, which can result in a loss of drive power.

Risk: A loss of drive power increases the risk of a crash.

Fix: Dealers will update the powertrain control module software, free of charge. Owner notification letters were mailed August 15, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is 92B. Vehicles previously repaired under recall 23V-116 will need to have the new remedy completed.

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Campaign #24V652000 · 05/09/2024

Issue: Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."

Risk: An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.

Fix: Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed between October 3, 2024, and January 23, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 30B.

Recall data refreshed Jun 7, 2026.

Essential maintenance

Critical for safety and preventing major damage

🛢️

Engine Oil & Filter

Every 8,000 mi

Pentastar 3.6L: SAE 0W-20 every 8,000 miles. Wrangler 392 6.4L HEMI: SAE 5W-20 every 8,000 miles. EcoDiesel 3.0L: 10,000 miles. 4xe plug-in hybrid: 8,000 miles or annually.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

🔄

Tire Rotation

Every 8,000 mi

Rotate tires every 8,000 miles. Wrangler with 33+ inch off-road tires: rotate every 5,000 miles to prevent uneven wear from solid axles.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

🛑

Brake Inspection

Every 8,000 mi

Inspect pads, rotors, and parking brake every 8,000 miles. Wrangler and Gladiator pads wear faster than Grand Cherokee due to higher curb weight per axle.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

🔧

Front Differential Fluid

Every 60,000 mi

Replace front differential fluid every 60,000 miles. Wrangler off-road use (water crossings, sand): inspect every 30,000 miles for water contamination.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

🔩

Rear Differential Fluid

Every 60,000 mi

Rear axle fluid every 60,000 miles. Limited-slip differentials require Mopar friction modifier. Wrangler Rubicon with locking differentials: same schedule.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

⚙️

Transfer Case Fluid (4WD)

Every 60,000 mi

Replace transfer case fluid every 60,000 miles. Use Mopar ATF+4 for NV3500 and NV245. Wrangler Rock-Trac: 60,000 mi normal, 30,000 mi with regular off-road use.

Estimated cost — typical U.S. ranges

Dealer

~$105–$140

Shop

~$75–$100

DIY

~$15–$40

AWD/4WD vehicles only. Easy drain-and-fill on most platforms.

🧪

Brake Fluid

Every 24,000 mi

Replace DOT 3 brake fluid every 2 years regardless of mileage. Wrangler off-road use accelerates moisture intake — annual fluid testing recommended.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

⚙️

Automatic Transmission Fluid (ZF 8HP)

Every 60,000 mi

Severe service: ZF 8HP fluid every 60,000 miles. Normal: 120,000 miles. Use Mopar ATF+4 — never substitute.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

💨

Engine Air Filter

Every 30,000 mi

Replace engine air filter every 30,000 miles. Wrangler driven in dust or sand: inspect at every oil change and replace early.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Spark Plugs

Every 100,000 mi

Pentastar 3.6L: 16 spark plugs total, replace at 100,000 miles. Wrangler 392 6.4L HEMI: 16 plugs at 100,000 miles. EcoDiesel: glow plug inspection only.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

🌡️

Mopar HOAT Coolant

Every 50,000 mi

Mopar HOAT (purple) for gas engines: first change at 100,000 miles, then every 50,000. Do not mix with green or orange coolants.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Recommended maintenance

Extends the life of your vehicle and improves comfort

🌬️

Cabin Air Filter

Every 20,000 mi

Replace cabin air filter every 20,000 miles. Grand Cherokee, Cherokee, and Compass: behind the glove box. Wrangler/Gladiator: optional cabin filter on later models only.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2021 Jeep Gladiator.

2 active NHTSA investigations

Source: NHTSA
  • High pressure fuel pump failure

    Action #EA23001 · opened Mar 17, 2023 · linked recall 24V957

    The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021, to investigate incidents alleging a stall/loss of motive power as a result of high-pressure fuel pump failures in certain model year (MY) 2019-2020 Ram 2500, 3500, 4500, and 5500 heavy duty trucks equi…

    View on NHTSA →

  • Underhood fires

    Action #PE24024 · opened Sep 6, 2024

    The Office of Defects Investigation (ODI) has received 9 Vehicle Owner's Questionnaire (VOQ) reports, 1 Death and Injury report, and multiple field reports alleging incidents of engine compartment fires in model year (MY) 2021-2023 Jeep Wrangler and Gladiator vehicles. The majori…

    View on NHTSA →

Reported to NHTSA

NHTSA has 271 complaints on file for the 2021 Jeep Gladiator (2020-11 → 2026-06). We haven't reviewed and grouped them yet for this specific YMM — for now, the full list lives on NHTSA.

Top reported components: STEERING (87) · POWER TRAIN (66) · ENGINE (53)

Read all complaints on NHTSA →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jun 13, 2026. Investigation data refreshed Jun 13, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2021 Jeep Gladiator reflects Jeep's published service intervals and the Oil Change Indicator system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.