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2018 Lexus GS problems

The most common problem on the 2018 Lexus GS is windows, wipers and visibility. Its complaint count is close to a typical GS model year.

Typical yearClose to a typical year
Owner complaints
3
Recalls
1
Service bulletins
23
Worst area
Visibility
Fuel economy
19-31mpg

The worst 2018 Lexus GS problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Visibility
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Visibility
    1

Recalls 1

Fuel system, gasoline: delivery: fuel pumpReported April 8, 2026 · 9,139 vehicles affected
What is wrong
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.
Remedy
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.

Recall number 26V222000 · Recall details

See all 1 recalls for the 2018 Lexus GS

Technical service bulletins for the 2018 Lexus GS 23

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 23 bulletins for the 2018 Lexus GS

2018 Lexus GS fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
3.5L 6‑cyl HybridRWD293431
2.0L 4‑cylRWD213024
3.5L 6‑cylRWD192722
3.5L 6‑cylAWD192622
5.0L 8‑cylRWD162419

What 2018 Lexus GS owners say

Most recent owner complaints, unedited.

Filed Sep 27, 2026 · CA

The carbon fiber interior trim on my 2018 Lexus GS F is delaminating at three locations: left of the steering wheel, right of the steering wheel, and the center console/shifter surround. The clear coat is lifting, cracking, and separating from the substrate, and it has worsened with temperature cycling. Mileage is approximately 72,000. The parts remain installed and are available for inspection on request. Safety risk: The lifting clear coat next to the steering wheel causes glare in direct sunlight that can impair forward visibility. The separated edges are sharp and pose a cut risk to the driver's hands during normal operation. The damage is in the driver's direct field of view and is distracting while driving. Lexus has acknowledged this defect in Customer Support Program ZLZ (MC-10145765-9999), which covers certain 2016–2018 GS F vehicles built mid-July 2015 through late September 2017. My vehicle was built in January 2018 and uses the same standard carbon fiber trim. Lexus verbally denied coverage based solely on build date. I am not aware of any change to the trim material or process after September 2017. Inspection: Photos of all three locations are available. Warning signs: There were no warning lamps or messages. Symptoms began as cloudiness / small bubbles in the clear coat around 2020 and progressed to lifting and cracking. I request that the federal safety agency review whether the ZLZ build-date cutoff is appropriate, given that later-production 2018 GS F vehicles appear to share the same trim and failure mode.

Filed Oct 26, 2023 · Visibility · 79,000 miles · NJ

The contact owns a 2018 Lexus GS350. The contact stated while the vehicle was parked, the windshield cracked without impact. The vehicle was taken to an independent mechanic and the contact was informed that the failure was due to a defect in the windshield being glued on one side. The windshield had been repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 79,000.

Filed Sep 12, 2023 · TX

While A/C is on, passenger side AC vent is blowing warm air while driver side and back seat AC vents are blowing cold air. Lowering the cabin air temperature controls do not correct the issue. It makes the car temperature get hot and uncomfortable, which becomes distracting when driving.

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Questions about the 2018 Lexus GS

Is the 2018 Lexus GS reliable?

Owners have filed 3 complaints about the 2018 Lexus GS, close to a typical GS model year.

What is the most common problem with the 2018 Lexus GS?

Windows, wipers and visibility, with 1 complaint.

How many recalls does the 2018 Lexus GS have?

1 recall, covering fuel system, gasoline.

What gas mileage does the 2018 Lexus GS get?

Official estimates for the 2018 Lexus GS range from 19 to 31 mpg combined. The most efficient version (3.5L 6-cyl hybrid, RWD) gets 29 city and 34 highway.

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