Research · Midsize Cars
2018 Lexus GS350Recalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 1 owner complaint for the 2018 Lexus GS350. Most complaints involve structure (1). The EPA rates it 22–23 mpg combined.
Combined MPG
22–23mpg
EPA · 3 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
1
Top: structure
Fuel cost / yr
$3,450est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2018 Lexus GS350 as of Oct 27, 2026.
Data from NHTSA Recalls API · synced Oct 27, 2026NHTSA vehicle page
Owner complaints by component
1 complaints filed with NHTSA · Dec 2018 – Dec 2018
- Structure1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 27, 2026NHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Structure
1 report
“2018 LEXUS GS350. CONSUMER WRITES IN REGARDS TO MOLD FOUND IN PASSENGER CABIN. *LD CONSUMER SENT ADDITIONAL CORRESPONDENCE. *LD *JS”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026
Engines, transmissions & drive
3 versions rated by the EPA
- EPA class
- Midsize Cars
- Engines
- 3.5L 6-cyl
- Transmissions
- Automatic (S8) · Automatic (S6)
- Drive
- Rear-Wheel Drive · All-Wheel Drive
- Fuel
- Premium Gasoline
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
Data from EPA fueleconomy.gov · synced Oct 27, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| GS 350 Auto (S8), 6 cyl, 3.5 L · Rear-Wheel Drive | 20 | 28 | 23 | $3,450 | 388 |
| GS 350 AWD Auto (S6), 6 cyl, 3.5 L · All-Wheel Drive | 19 | 26 | 22 | $3,600 | 407 |
| GS 350 F Sport Auto (S8), 6 cyl, 3.5 L · Rear-Wheel Drive | 19 | 27 | 22 | $3,600 | 405 |
- 23mpg comb.
- 22mpg comb.
- 22mpg comb.
Data from EPA fueleconomy.gov · synced Oct 27, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
2 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2018 Lexus GS350 as of Oct 27, 2026.
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2018 GS350 questions
How many recalls does the 2018 Lexus GS350 have?
0 recalls found in NHTSA data as of Oct 27, 2026.
What are the most common 2018 Lexus GS350 problems?
Owners filed 1 complaints with NHTSA. The most-cited components are structure (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2018 Lexus GS350 get?
The EPA rates the 2018 Lexus GS350 at 22–23 mpg combined, depending on engine and drivetrain (3 versions rated).
Data from NHTSA & EPA · synced Oct 27, 2026