2020 Lexus UX — Full Specifications
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The 2020 Lexus UX is a hatchback powered by a 2L 4-cyl regular gasoline engine. Its most fuel-efficient configuration returns around 40 mpg (UK) / 33 mpg (US EPA) combined, with 40–50 mpg (UK) across all configurations. A hybrid version is also listed by EPA (2L 4-cyl), returning around 50 mpg (UK) combined. Owners often keep a Lexus UX workshop manual to hand for servicing and repairs.
Compared with the 2019 Lexus UX: Fuel economy is essentially unchanged at around 40 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 2L 4-cyl |
|---|---|
| Transmission | Automatic (AV-S10) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Hatchback |
| Passenger Volume (EPA) | 90 cu ft (2,549 L) |
| Luggage Volume (EPA) | 17 cu ft (481 L) |
| Fuel Economy (UK) | 40 combined / 35 urban / 44 extra-urban mpg |
| Fuel Economy (US EPA) | 33 combined / 29 city / 37 highway mpg |
| CO₂ Emissions | 168 g/km |
| EPA Greenhouse Gas Score | 9 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,050 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 3 configurations for the 2020 Lexus UX, all with the 2L 4-cyl engine. Combined fuel economy ranges from 33 to 42 mpg (US), or 40 to 50 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 | Automatic (AV-S10) | Front-Wheel Drive | 40 | 33 (29/37) | 168 | $2,050 |
| 2L 4-cyl (Hybrid) | Automatic (AV-S6) | All-Wheel Drive | 47 | 39 (41/38) | 140 | $1,700 |
| 2L 4-cyl (Hybrid) | Automatic (AV-S6) | Front-Wheel Drive | 50 | 42 (43/41) | 130 | $1,600 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 17 cubic feet (about 481 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2020 Lexus UX
Running Costs: 2020 Lexus UX
Covering around 8,000 miles a year in a 2020 Lexus UX at 40 mpg combined, expect roughly 909 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,050 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.
2020 Lexus UX Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists no safety recall campaigns for the 2020 Lexus UX as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
Owners have filed 6 complaints with NHTSA about the 2020 Lexus UX. The most-reported areas are Electrical system (3), Service brakes (2), Visibility (1). Complaints include 2 reported crashes.
Used-buyer checklist for the 2020 Lexus UX
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (3 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Brakes (2 owner complaints) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Visibility (1 owner complaint) — Check wipers, washers and demisters work properly.
- Throttle & cruise control (1 owner complaint) — Check throttle response and cruise control are smooth, and ask about any software or throttle recalls.
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
Lexus models in our database average about 28 mpg (UK) combined on their most efficient configuration; the 2020 Lexus UX's 40 mpg is 12 mpg above that make average. Its 168 g/km CO₂ figure is 84 g/km lower than the 252 g/km Lexus average.
Of the 8 Lexus UX model years we cover, the 2020 ranks 5th for combined fuel economy on its best configuration (40 mpg UK combined, against a high of 52 mpg). See every Lexus UX 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 Lexus UX
Frequently Asked Questions
What engine does the 2020 Lexus UX have?
It's fitted with a 2L 4-cyl regular gasoline engine, paired with a automatic (av-s10) transmission.
What is the fuel economy of the 2020 Lexus UX?
The most efficient configuration returns around 40 mpg (UK) combined, or 33 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 40 to 50 mpg. The hybrid version returns around 50 mpg (UK) combined.
How much does the 2020 Lexus UX cost to fuel per year?
The US EPA estimates about $2,050 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 Lexus UX have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2020 Lexus UX have any recalls?
NHTSA lists no safety recall campaigns for the 2020 Lexus UX as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
What are the most common problems reported for the 2020 Lexus UX?
Among the 6 owner complaints filed with NHTSA, the most-reported areas are Electrical system (3 complaints), Service brakes (2 complaints), Visibility (1 complaint). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2020 Lexus UX have?
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 17 cubic feet (about 481 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.