DecodedCars2020 Lexus GS
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2020 models.
- Class
- Midsize Cars
- Body styles
- 350 AWD 4dr Sedan, F 4dr Sedan
- Engines
- 3.5L 6-cyl, 5.0L 8-cyl
- Drivetrain
- Rear-Wheel Drive, All-Wheel Drive
- Fuel
- Premium Gasoline
- MPG (best)
- 23 combined · 20 city / 28 hwy
- Length
- 192.1–193.3 in
- Curb weight
- 3,891–4,035 lb
- NHTSA rating
- Not rated
- Recalls
- 1 campaign
Pros & cons
What's good
- AWD / 4WD available
Watch out for
- Below-average fuel economyBest version gets 23 MPG combined, 17% below the 2020 midsize car average of 27.6 MPG.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data against 32 similar 2020 models — not a review. How we calculate this →
Overview
The 2020 Lexus GS is a midsize car offered with 2 engines (3.5L 6-cyl and 5.0L 8-cyl) and rear-wheel drive and all-wheel drive.
It measures about 192 inches long and 72 inches wide on a 112-inch wheelbase, with a curb weight of roughly 3,891 lb (350 AWD 4dr Sedan).
EPA rates its most efficient version at 23 MPG combined (20 city / 28 highway), 17% worse than the 2020 midsize car average of 27.6 MPG, for an estimated $3,550 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
It has 1 recall campaign on file.
What changed for 2020
- Engine dropped: 2.0L 4-cyl turbo
- Best combined MPG down from 26 to 23
Compared with 2019; trim, feature and price changes aren't covered. See the 2019 GS →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| 350 AWD 4dr Sedan | 192.1 in | 72.4 in | 57.9 in | 112.2 in | 62.6 / 63 in | 3,891 lb | 52/48 |
| F 4dr Sedan | 193.3 in | 72.4 in | 56.7 in | 112.2 in | 62.6 / 63 in | 4,035 lb | 52/48 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| GS 350 | 3.5L 6-cyl | Automatic (S8) | Rear-Wheel Drive | 20 / 28 / 23 | -17% | $3,550 | 388 |
| GS 350 F Sport | 3.5L 6-cyl | Automatic (S8) | Rear-Wheel Drive | 19 / 27 / 22 | -20% | $3,750 | 405 |
| GS 350 AWD | 3.5L 6-cyl | Automatic (S6) | All-Wheel Drive | 19 / 26 / 21 | -24% | $3,900 | 422 |
| GS F | 5.0L 8-cyl | Automatic (S8) | Rear-Wheel Drive | 16 / 24 / 19 | -30% | $4,350 | 472 |
EPA estimates; "vs. class" is combined MPG against the 2020 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2020 Lexus GS.
Similar 2020 midsize cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2020 Lexus GS (this car) | 23 MPG | Not rated | 1 |
| 2020 BMW 5 Series | 28 MPG | Not rated | 0 |
| 2020 Mercedes-Benz E-Class | 26 MPG | ★★★★★ | 0 |
| 2020 Lexus IS | 24 MPG | Not rated | 0 |
| 2020 Mercedes-Benz C-Class | 28 MPG | Not rated | 0 |
| 2020 Tesla Model 3 | 330 mi | ★★★★★ | 21 |
| 2020 Audi A6 | 27 MPG | ★★★★★ | 9 |
Recalls (1)
Fuel System, Gasoline › Delivery › Fuel Pump · Apr 8, 2026
NHTSA campaign 26V222000 · 9,139 vehicles
- Problem
- Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2015-2022 Lexus RC, 2016-2020 GS, and 2022 IS vehicles. The low-pressure fuel pump inside the fuel tank may fail.
- Risk
- Fuel pump failure can cause an engine stall, increasing the risk of a crash.
- Fix
- Dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed October 15, 2026. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's numbers for this recall are 26LB05 and 26LA05.
Not every 2020 Lexus GS is affected — only a VIN check confirms your car.
Owner-reported problems
No owner complaints for the 2020 Lexus GS in NHTSA's database since 2015.
Used 2020 Lexus GS buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 1 recall this year — ask for proof of repairs.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2020 Lexus GS. Not a substitute for a professional inspection.
Other GS years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2019 GS | 26 | 192.1 in | Not rated | 3 | 1 |
| 2018 GS | 31 | 192.1 in | Not rated | 4 | 4 |
| 2017 GS | 31 | 192.1 in | Not rated | 3 | 6 |
| 2016 GS | 31 | 192.1 in | Not rated | 2 | 10 |
| 2015 GS | 31 | 191.7 in | Not rated | 1 | 19 |
| 2014 GS | 31 | 191.7 in | Not rated | 1 | 19 |
| 2013 GS | 31 | 191.7 in | Not rated | 3 | 37 |
| 2011 GS | 23 | 190.2 in | Not rated | 3 | 7 |
| 2010 GS | 23 | 190.2 in | Not rated | 3 | 15 |
| 2009 GS | 23 | 190.2 in | Not rated | 3 | 3 |
| 2008 GS | 23 | 190.2 in | Not rated | 4 | 34 |
| 2007 GS | 23 | 190.2 in | Not rated | 6 | 55 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Lexus. How we calculate this →