2021 Buick Envision — Full Specifications
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The 2021 Buick Envision is an SUV powered by a 2L 4-cyl turbo regular gasoline engine. Its most fuel-efficient configuration returns around 31 mpg (UK) / 26 mpg (US EPA) combined, with 30–31 mpg (UK) across all configurations. Owners often keep a Buick Envision workshop manual to hand for servicing and repairs.
Compared with the 2020 Buick Envision: Fuel economy is essentially unchanged at around 31 mpg (UK) combined. No longer listed: 2.5L 4-cyl. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 2L 4-cyl turbo |
|---|---|
| Transmission | Automatic (S9) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 31 combined / 29 urban / 37 extra-urban mpg |
| Fuel Economy (US EPA) | 26 combined / 24 city / 31 highway mpg |
| CO₂ Emissions | 212 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,600 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2021 Buick Envision, all with the 2L 4-cyl turbo engine. Combined fuel economy ranges from 25 to 26 mpg (US), or 30 to 31 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 |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S9) | All-Wheel Drive | 30 | 25 (22/29) | 219 | $2,700 |
| 2L 4-cyl turbo | Automatic (S9) | Front-Wheel Drive | 31 | 26 (24/31) | 212 | $2,600 |
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 2021 Buick Envision
Running Costs: 2021 Buick Envision
Covering around 8,000 miles a year in a 2021 Buick Envision at 31 mpg combined, expect roughly 1,173 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,600 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.
2021 Buick Envision Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2021 Buick Envision (as of 6 October 2026). Most affected areas: Exterior lighting (1), Air bags (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Exterior lighting — campaign 22V903000, reported 8 December 2022. Risk: DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.
- Air bags — campaign 21V421000, reported 10 June 2021. Risk: The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.
Owners have filed 23 complaints with NHTSA about the 2021 Buick Envision. The most-reported areas are Fuel/propulsion system (6), Power train (5), Electrical system (5). Complaints include 2 reported crashes. That is close to the median of 21 complaints across the 10 Buick Envision model years in our data.
Used-buyer checklist for the 2021 Buick Envision
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Lighting (1 recall campaign) — Check every exterior light works and look for moisture inside the lamp housings.
- Air bags (1 recall campaign) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
- Fuel system (6 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Transmission & drivetrain (5 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
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 Envision compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 31 mpg figure is 4 mpg better than that average. Its 212 g/km CO₂ figure is 41 g/km lower 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 2021 Buick Envision's 31 mpg is 2 mpg above that make average. Its 212 g/km CO₂ figure is 21 g/km lower than the 233 g/km Buick average.
Of the 11 Buick Envision model years we cover, the 2021 is the most economical on its best configuration (31 mpg UK combined). See every Buick Envision 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 2021 Buick Envision
Frequently Asked Questions
What engine does the 2021 Buick Envision have?
It's fitted with a 2L 4-cyl turbo regular gasoline engine, paired with a automatic (s9) transmission.
What is the fuel economy of the 2021 Buick Envision?
The most efficient configuration returns around 31 mpg (UK) combined, or 26 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 30 to 31 mpg.
How much does the 2021 Buick Envision cost to fuel per year?
The US EPA estimates about $2,600 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 2021 Buick Envision have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2021 Buick Envision have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2021 Buick Envision (as of 6 October 2026). Most affected areas: Exterior lighting (1), Air bags (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 2021 Buick Envision?
Among the 23 owner complaints filed with NHTSA, the most-reported areas are Fuel/propulsion system (6 complaints), Power train (5 complaints), Electrical system (5 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Buick Envision's fuel economy good for an SUV?
Yes — it returns around 31 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track, making it one of the more efficient options in its class.