2020 Jeep Grand Cherokee — Full Specifications
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The 2020 Jeep Grand Cherokee is an SUV offered with 4 engines (3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged). Its most fuel-efficient configuration returns around 25 mpg (UK) / 21 mpg (US EPA) combined, with 16–25 mpg (UK) across all configurations. Owners often keep a Jeep Grand Cherokee workshop manual to hand for servicing and repairs.
Compared with the 2019 Jeep Grand Cherokee: Fuel economy slips from 29 to 25 mpg (UK) combined on the most efficient configuration. No longer listed: 3L 6-cyl turbo. The overall NHTSA rating moves from 4★ to 5★.
Full Specifications
| Engine (most efficient) | 3.6L 6-cyl |
|---|---|
| Engine options | 3.6L 6-cyl · 5.7L 8-cyl · 6.2L 8-cyl supercharged · 6.4L 8-cyl |
| Transmission (most efficient) | Automatic 8-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 25 combined / 23 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 21 combined / 19 city / 26 highway mpg |
| CO₂ Emissions | 257 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,200 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 5 configurations for the 2020 Jeep Grand Cherokee across 4 engines (3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged, 6.4L 8-cyl). Combined fuel economy ranges from 13 to 21 mpg (US), or 16 to 25 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 |
|---|---|---|---|---|---|---|
| 3.6L 6-cyl | Automatic 8-spd | All-Wheel Drive | 25 | 21 (18/25) | 265 | $3,200 |
| 3.6L 6-cyl | Automatic 8-spd | Rear-Wheel Drive | 25 | 21 (19/26) | 257 | $3,200 |
| 5.7L 8-cyl | Automatic 8-spd | All-Wheel Drive | 20 | 17 (14/22) | 331 | $4,450 |
| 6.2L 8-cyl supercharged | Automatic 8-spd | All-Wheel Drive | 16 | 13 (11/17) | 413 | $6,300 |
| 6.4L 8-cyl | Automatic 8-spd | All-Wheel Drive | 18 | 15 (13/19) | 368 | $5,500 |
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 2020 Jeep Grand Cherokee
Running Costs: 2020 Jeep Grand Cherokee
Covering around 8,000 miles a year in a 2020 Jeep Grand Cherokee at 25 mpg combined, expect roughly 1,455 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,200 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.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2020 Jeep Grand Cherokee Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 3 safety recall campaigns that include the 2020 Jeep Grand Cherokee (as of 6 October 2026). Most affected areas: Engine and engine cooling (1), Fuel system (1), Back over prevention (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Engine and engine cooling — campaign 23V411000, reported 8 June 2023. Risk: An engine stall can increase the risk of a crash.
- Fuel system — campaign 22V406000, reported 9 June 2022. Risk: Fuel starvation may result in an unexpected loss of drive power, increasing the risk of a crash.
- Back over prevention — campaign 20V191000, reported 10 September 2020. Risk: The lingering rearview image can distract the driver, increasing the risk of a crash.
Owners have filed 239 complaints with NHTSA about the 2020 Jeep Grand Cherokee. The most-reported areas are Electrical system (73), Unspecified (63), Engine (50). Complaints include 24 reported crashes, 5 reported fires, 13 reported injuries. That is well below the median of 447 complaints across the 17 Jeep Grand Cherokee model years in our data.
Used-buyer checklist for the 2020 Jeep Grand Cherokee
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (73 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Engine (50 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Transmission & drivetrain (39 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Engine cooling (1 recall campaign) — Check coolant level, look for leaks and make sure the temperature stays steady in traffic.
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 Grand Cherokee compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 25 mpg figure is 2 mpg below that average. This comparison is based on 1824 SUVs in our dataset.
Jeep models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2020 Jeep Grand Cherokee's 25 mpg is 2 mpg below that make average.
Of the 17 Jeep Grand Cherokee model years we cover, the 2020 ranks 8th for combined fuel economy on its best configuration (25 mpg UK combined, against a high of 30 mpg). See every Jeep Grand Cherokee 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 2020 Jeep Grand Cherokee
Frequently Asked Questions
What engine does the 2020 Jeep Grand Cherokee have?
EPA lists 4 engines for the 2020 Jeep Grand Cherokee: 3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged, 6.4L 8-cyl. The most fuel-efficient configuration pairs the 3.6L 6-cyl with a automatic 8-spd.
What is the fuel economy of the 2020 Jeep Grand Cherokee?
The most efficient configuration returns around 25 mpg (UK) combined, or 21 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 16 to 25 mpg.
How much does the 2020 Jeep Grand Cherokee cost to fuel per year?
The US EPA estimates about $3,200 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 2020 Jeep Grand Cherokee have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2020 Jeep Grand Cherokee have any recalls?
NHTSA lists 3 safety recall campaigns that include the 2020 Jeep Grand Cherokee (as of 6 October 2026). Most affected areas: Engine and engine cooling (1), Fuel system (1), Back over prevention (1). 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 2020 Jeep Grand Cherokee?
Among the 239 owner complaints filed with NHTSA, the most-reported areas are Electrical system (73 complaints), Unspecified (63 complaints), Engine (50 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Jeep Grand Cherokee's fuel economy good for an SUV?
It returns around 25 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.