2021 Jeep Gladiator
The 2021 Jeep Gladiator is sold in the U.S. as a gas and diesel large pickup truck with 4 EPA-rated configurations. The most efficient version, the Gladiator EcoDiesel 4WD, is EPA-rated at 24 mpg combined. NHTSA lists 8 recall campaigns for this model year, 3 rated critical, which gives it a Safety Signal grade of F. Owners have filed 292 complaints, most often about the steering.

Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| Gladiator 4WD | Gas | 4WD | 3.6L 6-cyl | 17 | 22 | 19 | $3,550 |
| Gladiator 4WD | Gas | 4WD | 3.6L 6-cyl | 16 | 23 | 19 | $3,550 |
| Gladiator EcoDiesel 4WD | Diesel | 4WD | 3.0L 6-cyl turbo | 22 | 28 | 24 | $4,000 |
| Gladiator Rubicon EcoDiesel 4WD | Diesel | 4WD | 3.0L 6-cyl turbo | 21 | 27 | 24 | $4,000 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42951, 43011, 43012, 43013.
Emissions & certification
Source: EPA emission certificates| Configuration | Smog rating | Emission standard | Where it can be sold new | SmartWay |
|---|---|---|---|---|
| Gladiator 4WD | 7 / 10 | California LEV-III SULEV30 / Federal Tier 3 Bin 30 | All 50 states (federal, all altitudes); California and states following California standards | — |
| Gladiator EcoDiesel 4WD, Gladiator Rubicon EcoDiesel 4WD | 1 / 10 | California LEV-III LEV160 / Federal Tier 3 Bin 160 | All 50 states (federal, all altitudes); California and states following California standards | — |
Certified for all fifty states, so it can be registered new anywhere in the U.S.
The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.
Specifications filed with NHTSA
Source: NHTSA vPICDimensions Exterior
| Body style | Pickup |
| GVWR class | Class 1D: 5,001 - 6,000 lb (2,268 - 2,722 kg) |
Engine Basics
| Cylinders | 6 |
| Displacement | 3.6 L |
| Engine configuration | V-Shaped |
Engine Output
| Horsepower | 285 hp |
Fuel Economy
| Fuel | Gasoline |
Transmission
| Drivetrain | 4WD/4-Wheel Drive/4x4 |
Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Mojave, Overland, Rubicon, Sport). Figures for the trim you are looking at may differ.
Dimensions & weight
Source: Transport Canada| Length | 216.9 in |
| Width (body, without mirrors) | 74.0 in |
| Height | 73.6 in |
| Wheelbase | 137.4 in |
| Track, front | 64.2 in |
| Track, rear | 64.2 in |
| Curb weight | 4,683–5,082 lb |
| Weight distribution, front/rear | 54/46 |
Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 3 configurations: 4-door Pickup Overland, 4-door Pickup Rubicon, 4-door Pickup Sport. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.
Factory warranty running out?
The 2021 Jeep Gladiator is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.
What to check before you buy →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Recalls (8)
Source: NHTSA recall databaseElectrical System
30BPower Train
92BFuel System, Diesel
01APower Train
19AFuel System, Gasoline
Z96Back Over Prevention
Z86Power Train
Y01These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.
NHTSA defect investigations
Steering:Hydraulic Power Assist:Pump — Underhood fires closed
On September 6, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24024 to investigate allegations of engine compartment fires in model year 2021-2023 Jeep Wrangler and Gladiator vehicles. Most reports described fires starting on the front passenger side of the engine compartment while the vehicle was turned off, with several originating specifically at the electrohydraulic power steering pump's electrical connector. Following the opening of the investigation, ODI sent an information request letter to the vehicle manufacturer to assess the cause, scope, and frequency of the alleged defect. Additionally, ODI continued to receive reports of vehicle fires with a li
Opened Sep 6, 2024 · closed Sep 24, 2026 · action PE24024 · the investigation’s page →
Fuel System, Diesel:Delivery:Fuel Pump — High pressure fuel pump failure open
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 equipped with 6.7L Cummins turbodiesel engines. During the investigation, ODI sought to determine if the related defect allegation was limited in scope to the recalled population. After review of information request response materials from both FCA and BMW, NHTSA determined that sufficient information to identify a comprehensive recall population could not be produced by FCA and BMW. During the investigation FCA filed re
Opened Mar 17, 2023 · action EA23001 · the investigation’s page →
Whether any of this applies to one specific Gladiator
A campaign covers a build range, not a model year, so two identical-looking cars from 2021 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Jeep publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.
Hear about a recall before the letter does
The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2021 Jeep Gladiator, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.
Parts & accessories for the 2021 Jeep Gladiator
Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.
Find parts for this Gladiator →Owner complaints
Source: NHTSA complaint database7 involved a crash · 3 a fire · 7 injuries · 0 deaths reported
27 per 10,000 built · Jeep reported 106,431 Gladiator built (its Early Warning production report to NHTSA)
Filed per year: 2020: 1 · 2021: 43 · 2022: 72 · 2023: 54 · 2024: 39 · 2025: 39 · 2026: 44
Most-cited components
In depth: steering problems → · transmission and drivetrain problems → · engine problems →
In owners' own words
Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.
Purchased vehicle 8/20/21. Car was brought into dealership for repairs to the rear axel leaking. This seems to be a huge problem with gladiator trucks and feel this should be considered a recall. The part needed to fix is on back order with no eta date which is even more concerning.
Leaking rear passenger axle seal. Axle lubricant is spun all around the inside of the wheel and hub assembly; including break pads and caliper
Right rear axle seal failure, was already inspected and verified at dealership. With the axle seal leaking, there is a hazard and potential for brake failure due to the gear oil covering the rear brake. Also, metal to metal differential gears will occur, causing metal shavings to contaminate the rear differential housing.
The vehicle has a lot of wandering movement while driving. The undercarriage of the vehicle and the driveshaft/steering feels like it is loose. The vehicle is difficult to keep on a center point in the lane Inez; it drives like bumper bowling balls on a bowling lane.
The contact owns a 2021 Jeep Gladiator. The contact stated that the air bag warning light was illuminated. The vehicle was taken to the local dealer to be diagnosed. The contact was informed that there was a failure with the occupant classification module which produced fault code: B2122-00. The vehicle was not repaired.
The contact owns a 2021 Jeep Gladiator. The contact stated while driving at 70 mph, a rock flew and hit the window causing the windshield to crack on the passenger side. The vehicle was taken to a glass repair shop where it was diagnosed with the windshield needing to be replaced.
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Reported by Jeep itself: 21 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 25 injured, as claimed, not verified — about 20 per 100,000 built. Every Gladiator model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.
When owners reported it
miles, typically
Half the 43 owner reports with an odometer reading on file fall between 6,000 and 42,000 miles. That is when problems get reported, which is not the same as when they start — and not a failure rate, because nobody knows how many of these cars never had a problem at all.
Odometer readings as filed by owners with NHTSA. Readings under 100 or over 400,000 miles are dropped as data entry rather than history, and a component needs at least 12 readings before a median is shown for it.
Crash ratings
Source: NHTSA NCAP| Configuration | Overall | Frontal | Side | Rollover | Rollover risk |
|---|---|---|---|---|---|
| PU/CC 4WD | not rated | ★★★★☆ | not rated | ★★★☆☆ | 27% |
| PU/CC 4WD | not rated | not rated | not rated | ★★★☆☆ | 27% |
NHTSA New Car Assessment Program.
Service bulletins & campaigns
Source: NHTSA manufacturer communications- Term not in NHTSA’s summary · Jeep warranty extension ID-25-11 REV.CC Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
- Term not in NHTSA’s summary · Jeep warranty extension D-25-15 REV.CC Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
- Term not in NHTSA’s summary · Jeep warranty extension 113929NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL).
- Term not in NHTSA’s summary · Jeep warranty extension 16C Combo REV216C - Check Engine/Malfunction Indicator Lamp - Dealer Notification (Revision 2)
- Term not in NHTSA’s summary · Jeep warranty extension ID-25-11 REV.BB Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
- Term not in NHTSA’s summary · Jeep warranty extension D-25-15 REV.BB Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
15 more in this page’s JSON.
The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every Stellantis warranty extension (117) → · Every warranty extension on file, all makes →
Most often about: Electrical System, Equipment, Engine, Power Train, Structure.
- S2621000004 Service bulletin2026-09-30 · Power Train
- The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
- 114746 Service bulletin2026-09-24 · Steering
- SOCKET - DRAG LINK INNER
- 114745 Service bulletin2026-09-24 · Steering
- SOCKET - DRAG LINK INNER
- 9100900 Service bulletin2026-09-08 · Structure — Body
- Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- 114045 Warranty extension2026-08-12 · Structure — Body
- ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
- 114044 Warranty extension2026-08-12 · Structure — Body
- D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
- 16C Combo Rev3 Warranty extension2026-08-06 · Electrical System
- EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. Howe
- 113271 Service bulletin2026-07-07 · Engine
- CORE – HEATER
A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.
Diagnostic trouble codes on file
Source: NHTSA manufacturer communications and complaintsCodes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.
| Code | What it means | Most often filed under | Where it appears |
|---|---|---|---|
| P0300 P0300 on Jeep → | Misfire detected, but not isolated to one cylinder. | Power Train · Ignition coils → | 8 bulletins |
| P208B P208B on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Fuel/Propulsion System · Fuel pump → | 7 bulletins |
| P206D P206D on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 6 bulletins |
| P20E8 P20E8 on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Fuel/Propulsion System · Fuel pump → | 6 bulletins |
| P0128 P0128 on Jeep → | The engine is not reaching its normal operating temperature in the expected time — usually the thermostat. | Engine · Thermostat → | 5 bulletins |
| P0403 P0403 on Jeep → | A fault in the exhaust gas recirculation control circuit. | Exterior Lighting · Headlight assembly → | 5 bulletins |
| P08A6 P08A6 on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Power Train | 5 bulletins |
| P2100 P2100 on Jeep → | An open circuit in the electronic throttle actuator motor. | Power Train | 5 bulletins |
| P00FD P00FD on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Air Bags | 4 bulletins |
| P0513 P0513 on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 4 bulletins |
| P0562 P0562 on Jeep → | System voltage is below the operating range. | Air Bags · Alternator → | 4 bulletins |
| P152F P152F on Jeep → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 4 bulletins |
Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
At the New York inspection station
Source: New York State DMVIn New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Jeep Gladiator failed the emissions check on 2.4% of first inspections — higher than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.5% (every 2021 vehicle: 1.5%).
failed emissions
2,632 initial inspections of 2,578 vehicles.
| Measure | The 2021 Gladiator | Every 2021 vehicle | Behind it |
|---|---|---|---|
| Failed the emissions check | 2.4% | 1.9% | 2,627 |
| Failed the safety inspection | 1.5% | 1.5% | 2,632 |
| Air-bag warning lamp stayed lit | 0.46% | 0.19% | 2,632 |
| Miles driven a year | 10,418 | 10,343 | odometer at inspection |
| Average odometer | 55,093 | 54,681 | odometer at inspection |
New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2021 vehicle” is every 2021 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).
Gladiator by model year
all years, side by side →Common questions about the 2021 Gladiator
Source: EPA, NHTSA and manufacturer press kitsDoes the 2021 Jeep Gladiator have any recalls?
NHTSA has posted 8 recall campaigns for the 2021 Jeep Gladiator, 3 of them rated critical. The most serious on file is 26V363000, covering Steering. There is an active park outside advisory — act on it before driving. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.
How safe is the 2021 Jeep Gladiator?
NHTSA has not published a crash-test rating for the 2021 Jeep Gladiator yet. On the recall record WhichTrim grades it F (45/100), which measures open and severe recalls rather than crash protection.
What is the fuel economy of the 2021 Jeep Gladiator?
Across the 4 EPA-rated configurations of the 2021 Jeep Gladiator, the best EPA combined figure is 24 mpg. Figures are the EPA's own, per configuration, and every one is listed above.
What are the dimensions of the 2021 Jeep Gladiator?
Transport Canada measured it at 216.9 in long, 74.0 in wide (body, without mirrors), 73.6 in tall, on a 137.4 in wheelbase. Curb weight: 4,683–5,082 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.
What do owners complain about on the 2021 Jeep Gladiator?
Owners have filed 292 complaints with NHTSA about the 2021 Jeep Gladiator, most often about steering, power train, engine. Of those, 7 involved a crash, 3 a fire, 7 reported injuries. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.
How clean is the 2021 Jeep Gladiator?
The EPA smog rating for the 2021 Jeep Gladiator runs 1 to 7 out of 10 across its configurations. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III LEV160, California LEV-III SULEV30, Federal Tier 3 Bin 160, Federal Tier 3 Bin 30 — which the table above lists per configuration.
Are there service bulletins for the 2021 Jeep Gladiator?
The manufacturer has filed 700 service bulletins and related communications with NHTSA for the 2021 Jeep Gladiator, most often covering electrical system, equipment, engine. The most recent is dated 2026-09-30. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.
How does the 2021 Jeep Gladiator do at state inspection?
In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Jeep Gladiator failed the emissions check on 2.4% of first inspections — higher than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.5% (every 2021 vehicle: 1.5%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.
What we hold, and what an empty row means
Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.
| Data | Held | Source | What it covers — or what empty means |
|---|---|---|---|
| Fuel economy & configurations | 4 configurations | EPA certification records | Every configuration the EPA certified for sale, with its own test figures. |
| Emission certificates | 4 configurations | EPA emission certificates | Smog rating, standard and the sales area that decides where the car can be sold new. |
| Recalls | 8 | NHTSA recall campaigns | A complete federal register: every campaign covering this model year, with severity and advisory flags. |
| Owner complaints | 292 | NHTSA complaint database | Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold. |
| Crash ratings | 2 tested | NHTSA NCAP | Only the configurations NHTSA chose to crash-test, which is never all of them. |
| Service bulletins | 700 | NHTSA manufacturer communications | Everything the manufacturer told its dealers about a defect or malfunction, short of a recall. |
| Investigations | 2 | NHTSA Office of Defects Investigation | Open and closed defect investigations, with the agency's own narrative. |
| Driver-assist crash reports | none | NHTSA Standing General Order 2021-01 | No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like. |
| Specifications filed with NHTSA | 8 fields | NHTSA vPIC, decoded from VIN patterns | What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder. |
| Measured dimensions | 7 fields | Transport Canada, Canadian Vehicle Specifications | Length, width, height, wheelbase, track and curb weight, measured on the North American versions. |
| Trims, pricing & equipment | none | Manufacturer press kit | We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind. |
Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.