Most common 2017 Lexus RX350 problems
Share of the 46 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Lexus RX350 complaints by model year
Best RX350 years: 2020, 2014, 2022. Years to avoid: 2007, 2008, 2010, 2009. Compare all years →
2017 Lexus RX350 recalls (3)
Fuel system, gasoline › Delivery › Fuel pump
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017…
Remedy: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021.
Fuel system, gasoline › Delivery › Fuel pump
Toyota Motor Engineering & Manufacturing (Toyota) recalled certain 2018-2019 4Runner, Highlander, Camry, Land Cruiser, Sequoia, Sienna, Tacoma and Tundra, and Lexus RC 300, RC 350, GS 350, GX 460, IS 300, LC 500, LS 500, LX 570, RX 350L, and 2019 Toyota Avalon and Corolla, and certain Lexus NX 300, and ES 350 vehicles on…
Remedy: Toyota will notify owners, and dealers will replace the fuel pump, free of charge. The recall began May 4, 2020. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987.
Service brakes, hydraulic › Power assist › Vacuum
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018 Toyota Camry and Highlander vehicles, 2017 Toyota Sienna and Tacoma vehicles and 2017 Lexus RX350 vehicles.
Remedy: Toyota will notify owners, and dealers will replace the brake booster vacuum pump, free of charge. The recall began on May 9, 2018.
What 2017 Lexus RX350 owners say
Brakes
The contact owns a 2017 Lexus RX350. The contact stated that while driving at various speeds, the vehicle hesitated upon depression of the accelerator pedal, without warning. The contact had taken the vehicle to the dealer and was informed that the vacuum pump was defective and needed to be replaced. Upon investigation, the contact discovered NHTSA Campaign Number: 18V211000 (Service Brakes, Hydraulics) which she linked to the failure. The manufacturer was also notified of the failure and the contact was given a case manager. The vehicle was not repaired. The failure mileage was approximately 24,000. The contact stated that the vacuum pump was replaced at their expense and is requesting a reimbursement. The vehicle always had issues with the vacuum pump ever since the contact purchased it in 2021. The contact claims that they were told that the vacuum pump issue was normal. …
The contact owns a 2017 Lexus RX350. The contact stated that upon a cold start, an abnormal knocking sound was coming from the right side of the engine without warning. The contact stated that the knocking noise became louder upon shifting gear but would cease once the engine was warmed up. The contact also noted that the brake pedal was firm while depressing the brake pedal. There was an unknown brake warning message displayed. Upon investigation, the contact discovered NHTSA Campaign Number: 18V211000 (Service Brakes, Hydraulics) which he linked to the failure. The dealer was notified of the failure and informed him that the vehicle was not under recall. The dealer provided an estimate for the repair. The manufacturer was notified of the failure and provided a case number. The vehicle was not repaired. The failure mileage was approximately 25,800.
Fuel & propulsion system
The contact owns a 2017 Lexus RX-350. The contact stated that while driving at an undisclosed speed, a strong chemical odor was detected coming from the cabin filter. The contact experienced severe headaches and a numbing, sour tongue sensation after the failure. The contact had replaced over 12 cabin filters and had the vehicle detailed where the interior cabin was shampooed and cleaned however, the failure recurred. The dealer was made aware of the failure but informed the contact that the vehicle was tampered with and to go through his insurance company for the repair costs. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 19,000.
The contact owns a 2017 Lexus RX350. The contact stated that while at a complete stop, the vehicle would intermittently hesitate upon depression of the accelerator pedal without warning. The contact had taken the vehicle to the dealer where he was informed that the cause of the failure was related to defective fuel in fuel tank. Upon investigation, the contact discovered NHTSA Campaign Number: 20V682000 (Fuel System, Gasoline) which he linked to the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.
Speed control & acceleration
Tl* the contact owned a 2017 Lexus RX350. -the vehicle spontaneously accelerated with the brake pedal depressed. -the vehicle struck a guard rail. -no apparent reason why the vehicle accelerated the contact stated that while the vehicle was idling in a parking lot with the brake pedal depressed, the vehicle spontaneously accelerated and struck a guard rail. All the frontal air bags deployed (including curtain air bags). The vehicle was towed and deemed destroyed according to the insurance company. The contact was transported by ambulance to the hospital, two fractured ribs and 2 fingers, treated and released. The police was present and report number: 20192380195 was filed. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 9,700.
While driving home, I stopped the car at the entrance to the drive way at the mail box by applying brake .the car came to a full stop. I shifted the gear ( automatic ) to park to get out of the car to pick the mail. As soon as the gear was in park, the car accelerated uncontrollably, inspite of hard breaking. I could feel the ABS system being activated by the way it feels on the break pedal. The car hit the side of the house and stopped. This vehicle has built in pre collision system. After notifying the insurance company the car was towed to a body shop where it is being worked on.
2017 Lexus RX350 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl | 8-speed automatic | FWD | 20 / 27 / 23 |
EPA ratings. Class: Small SUV.
Frequently asked questions
Is the 2017 Lexus RX350 a good car?
Based on 46 owner complaints filed with NHTSA, the 2017 RX350 rates average: about as many complaints as a typical year of the RX350 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2017 Lexus RX350?
The brakes — 11 complaints, 24% of all complaints for this model year. Next are the fuel & propulsion system (10) and speed control & acceleration (6).
How many recalls does the 2017 Lexus RX350 have?
There are 3 recalls for the 2017 Lexus RX350, the most recent from November 4, 2020 (fuel pump). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Lexus RX350?
The best years by complaints, compared at the same age, are 2020, 2014 and 2022. Years to avoid or approach with caution: 2007, 2008, 2010 and 2009. See the full Lexus RX350 years comparison.
At what mileage do 2017 Lexus RX350 problems happen?
The median mileage reported in complaints is about 9,000 miles; 95% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.