2023 Jeep Gladiator — Full Specifications
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The 2023 Jeep Gladiator is a pickup offered with 2 engines (3L 6-cyl turbo, 3.6L 6-cyl). Its most fuel-efficient configuration returns around 29 mpg (UK) / 24 mpg (US EPA) combined, with 23–29 mpg (UK) across all configurations. Owners often keep a Jeep Gladiator workshop manual to hand for servicing and repairs.
Compared with the 2022 Jeep Gladiator: Fuel economy is essentially unchanged at around 29 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine (most efficient) | 3L 6-cyl turbo |
|---|---|
| Engine options | 3L 6-cyl turbo · 3.6L 6-cyl |
| Transmission (most efficient) | Automatic 8-spd |
| Fuel Type | Diesel |
| Powertrain | Conventional |
| Drive | 4-Wheel Drive |
| Body Style | Pickup |
| Fuel Economy (UK) | 29 combined / 26 urban / 34 extra-urban mpg |
| Fuel Economy (US EPA) | 24 combined / 22 city / 28 highway mpg |
| CO₂ Emissions | 263 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $4,000 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 3 configurations for the 2023 Jeep Gladiator across 2 engines (3L 6-cyl turbo, 3.6L 6-cyl). Combined fuel economy ranges from 19 to 24 mpg (US), or 23 to 29 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3L 6-cyl turbo | Automatic 8-spd | 4-Wheel Drive | 29 | 24 (22/28) | 263 | $4,000 |
| 3.6L 6-cyl | Automatic 8-spd | 4-Wheel Drive | 23 | 19 (17/22) | 290 | $3,550 |
| 3.6L 6-cyl | Manual 6-spd | 4-Wheel Drive | 23 | 19 (16/23) | 296 | $3,550 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2023 Jeep Gladiator
Running Costs: 2023 Jeep Gladiator
Covering around 8,000 miles a year in a 2023 Jeep Gladiator at 29 mpg combined, expect roughly 1,254 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $4,000 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2023 Jeep Gladiator Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 6 safety recall campaigns that include the 2023 Jeep Gladiator (as of 6 October 2026). Most affected areas: Power train (2), Steering (1), Electrical system (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Steering — campaign 26V363000, reported 4 June 2026. Risk: A vehicle fire increases the risk of injury.
- Electrical system — campaign 24V652000, reported 5 September 2024. 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.
- Air bags — campaign 24V199000, reported 14 March 2024. Risk: An air bag that does not deploy in a crash can increase the risk of injury.
- Power train — campaign 23V641000, reported 18 September 2023. Risk: A disabled rearview image can decrease the driver's visibility of the rear view, and disabled reverse lights may not alert others that the vehicle is reversing, increasing the risk of injury or crash.
Showing the 4 most recent of 6 campaigns.
Owners have filed 56 complaints with NHTSA about the 2023 Jeep Gladiator. The most-reported areas are Electrical system (15), Suspension (12), Steering (10). Complaints include 3 reported fires. That is close to the median of 40 complaints across the 6 Jeep Gladiator model years in our data.
Used-buyer checklist for the 2023 Jeep Gladiator
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (1 recall campaign · 15 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Steering (1 recall campaign · 10 owner complaints) — Check for play, noise or heavy steering, and ask whether any steering recall work was done.
- Transmission & drivetrain (2 recall campaigns) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Suspension (12 owner complaints) — Listen for knocks over bumps and check tyre wear for signs of alignment problems.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Jeep Gladiator compare to similar pickups? For context, pickups in our database average around 25 mpg (UK) combined — this model's 29 mpg figure is 4 mpg better than that average. Its 263 g/km CO₂ figure is 20 g/km lower than the 283 g/km average for pickups on this site. This comparison is based on 264 pickups in our dataset.
Jeep models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2023 Jeep Gladiator's 29 mpg is 2 mpg above that make average.
Of the 6 Jeep Gladiator model years we cover, the 2023 is the most economical on its best configuration (29 mpg UK combined). See every Jeep Gladiator year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2023 Jeep Gladiator
Frequently Asked Questions
What engine does the 2023 Jeep Gladiator have?
EPA lists 2 engines for the 2023 Jeep Gladiator: 3L 6-cyl turbo, 3.6L 6-cyl. The most fuel-efficient configuration pairs the 3L 6-cyl turbo with a automatic 8-spd.
What is the fuel economy of the 2023 Jeep Gladiator?
The most efficient configuration returns around 29 mpg (UK) combined, or 24 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 23 to 29 mpg.
How much does the 2023 Jeep Gladiator cost to fuel per year?
The US EPA estimates about $4,000 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2023 Jeep Gladiator have any recalls?
NHTSA lists 6 safety recall campaigns that include the 2023 Jeep Gladiator (as of 6 October 2026). Most affected areas: Power train (2), Steering (1), Electrical system (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2023 Jeep Gladiator?
Among the 56 owner complaints filed with NHTSA, the most-reported areas are Electrical system (15 complaints), Suspension (12 complaints), Steering (10 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Jeep Gladiator's fuel economy good for a pickup?
Yes — it returns around 29 mpg (UK) combined, against a same-body-style average of roughly 25 mpg among the pickups we track, making it one of the more efficient options in its class.