2020 Buick Enclave — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2020 Buick Enclave is an SUV powered by a 3.6L 6-cyl regular gasoline engine. Its most fuel-efficient configuration returns around 25 mpg (UK) / 21 mpg (US EPA) combined, with 24–25 mpg (UK) across all configurations. Owners often keep a Buick Enclave workshop manual to hand for servicing and repairs.
Compared with the 2019 Buick Enclave: Fuel economy is essentially unchanged at around 25 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 3.6L 6-cyl |
|---|---|
| Transmission | Automatic 9-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 25 combined / 22 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 21 combined / 18 city / 26 highway mpg |
| CO₂ Emissions | 261 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 2 configurations for the 2020 Buick Enclave, all with the 3.6L 6-cyl engine. Combined fuel economy ranges from 20 to 21 mpg (US), or 24 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 9-spd | All-Wheel Drive | 24 | 20 (17/25) | 275 | $3,350 |
| 3.6L 6-cyl | Automatic 9-spd | Front-Wheel Drive | 25 | 21 (18/26) | 261 | $3,200 |
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 Buick Enclave
Running Costs: 2020 Buick Enclave
Covering around 8,000 miles a year in a 2020 Buick Enclave 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 Buick Enclave Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 6 safety recall campaigns that include the 2020 Buick Enclave (as of 6 October 2026). Most affected areas: Tires (2), Power train (1), Fuel system (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Tires — campaign 21V115000, reported 25 February 2021. Risk: Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control,…
- Tires — campaign 20V684000, reported 5 November 2020. Risk: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition…
- Power train — campaign 20V668000, reported 29 October 2020. Risk: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of…
- Fuel system — campaign 20V639000, reported 15 October 2020. Risk: Insufficient fuel supply can result in an engine stall without warning, increasing the risk of a crash.
Showing the 4 most recent of 6 campaigns.
Owners have filed 59 complaints with NHTSA about the 2020 Buick Enclave. The most-reported areas are Engine (16), Unspecified (12), Electrical system (10). Complaints include 3 reported crashes, 2 reported injuries. That is close to the median of 65 complaints across the 17 Buick Enclave model years in our data.
Used-buyer checklist for the 2020 Buick Enclave
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Transmission & drivetrain (1 recall campaign · 9 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Tyres (2 recall campaigns) — Check tyre age and wear and ask about any tyre recalls.
- Engine (16 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Electrical system (10 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
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 Buick Enclave 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. Its 261 g/km CO₂ figure is 8 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Buick models in our database average about 29 mpg (UK) combined on their most efficient configuration; the 2020 Buick Enclave's 25 mpg is 4 mpg below that make average. Its 261 g/km CO₂ figure is 28 g/km higher than the 233 g/km Buick average.
Of the 17 Buick Enclave model years we cover, the 2020 ranks 3rd for combined fuel economy on its best configuration (25 mpg UK combined, against a high of 28 mpg). See every Buick Enclave 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 Buick Enclave
Frequently Asked Questions
What engine does the 2020 Buick Enclave have?
It's fitted with a 3.6L 6-cyl regular gasoline engine, paired with a automatic 9-spd transmission.
What is the fuel economy of the 2020 Buick Enclave?
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 24 to 25 mpg.
How much does the 2020 Buick Enclave 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 Buick Enclave have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2020 Buick Enclave have any recalls?
NHTSA lists 6 safety recall campaigns that include the 2020 Buick Enclave (as of 6 October 2026). Most affected areas: Tires (2), Power train (1), Fuel system (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 Buick Enclave?
Among the 59 owner complaints filed with NHTSA, the most-reported areas are Engine (16 complaints), Unspecified (12 complaints), Electrical system (10 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Buick Enclave'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.