THE PROBLEM IS IN THE LEARNING ABILITY OF THE EIGHT-SPEED AUTOMATIC ELECTRONICALLY CONTROLLED TRANSMISSION (ECT) IN MY WIFE'S LEXUS 2017 RX 350. IT HAS DELAY OF 2 TO 3 SECOND IN ACCELERATING OCCASIONALLY AFTER A STOP OR WHEN TRYING ACCELERATED IN A NORMAL DRIVE' IT DOES NOT HAPPEN AS EXPECTED.
2017 Lexus RX350
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2017 Lexus RX350 do not stand out strongly from the model-year median of 29.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all RX350 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
39 reports with mileage · 7 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
46 reportsFROM THE FIRST WEEK I PURCHASED THIS NEW 2017 LEXUS RX350, I NOTICED THAT RAPID ACCELERATION IS NOT POSSIBLE. THERE IS A MOMENTARY HESITATION AFTER DEEPLY AND RAPIDLY DEPRESSING THE ACCELERATOR. THIS IS MOSTLY NOTICED WHEN AGGRESSIVELY PULLING INTO A TRAFFIC LANE SAY, FROM A SIDE STREET OR PARKING LOT, OR WHEN ATTEMPTING TO PASS…
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FROM THE FIRST WEEK I PURCHASED THIS NEW 2017 LEXUS RX350, I NOTICED THAT RAPID ACCELERATION IS NOT POSSIBLE. THERE IS A MOMENTARY HESITATION AFTER DEEPLY AND RAPIDLY DEPRESSING THE ACCELERATOR. THIS IS MOSTLY NOTICED WHEN AGGRESSIVELY PULLING INTO A TRAFFIC LANE SAY, FROM A SIDE STREET OR PARKING LOT, OR WHEN ATTEMPTING TO PASS ANOTHER VEHICLE. WHEN THE ACCELERATOR IS RAPIDLY PRESSED TO THE FLOOR, THE RPM'S NEARLY RED-LINES BUT THE VEHICLE DOESN'T ACCELERATE FOR NEARLY A SECOND, WHICH SEEMS A DANGEROUSLY LONG TIME WHEN YOU'RE IN TRAFFIC. THIS IS NOT ONLY AGGRAVATING, SEEING I PAID SO MUCH FOR WHAT IS ADVERTISED AS AND SUPPOSED TO BE A HIGHLY RATED CAR BUT IS DANGEROUS THIS CAR CAN NOT ACCELERATE AS RAPIDLY AS IT SHOULD. I MADE THE DEALER AWARE OF THE PROBLEM AND HE SAID IT IS A KNOWN ISSUE WITH SOME OF THE CARS AND IT IS FIXABLE BUT CAN'T UNTIL IT IS APPROVED BY SOME GOVERNMENT AGENCY. THE CAR IS LESS THAN 6 MONTHS OLD WITH LESS THAN 6,000 MILES AND I FEEL IT IS NOT SAFE AND DON'T WANT IT ANYMORE UNLESS IT CAN BE FIXED VERY SOON.
PURCHASED NEW CAR MARCH, 2017. FAULTY ACCELERATION OCCURS FROM START TO 40MPH. THIS HAPPENS ON SIDE STREETS AND INTERSTATES. DOES NOT MATTER WHERE YOU ARE DRIVING. RAIN OR SHINE, THIS IS A DAILY OCCURANCE. WENT TO LEXUS IN CHARLOTTE, N.C. FOR THE 5TH TIME REGARDING THIS PROBLEM. MY 10,000 MILE INSPECTION WAS DUE AND THEY SAID TH…
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PURCHASED NEW CAR MARCH, 2017. FAULTY ACCELERATION OCCURS FROM START TO 40MPH. THIS HAPPENS ON SIDE STREETS AND INTERSTATES. DOES NOT MATTER WHERE YOU ARE DRIVING. RAIN OR SHINE, THIS IS A DAILY OCCURANCE. WENT TO LEXUS IN CHARLOTTE, N.C. FOR THE 5TH TIME REGARDING THIS PROBLEM. MY 10,000 MILE INSPECTION WAS DUE AND THEY SAID THAT IT IS A SOFTWARE PROBLEM AND NOT SURE WHEN IT WILL BE FIXED. DID NOT OFFER ANY OTHER SUGGESTIONS. I STARTED TO SEE LEXUS REGARDING THIS PROBLEM AFTER 1 MONTH OF OWNING CAR. WORRIED ABOUT MY SAFETY AND MY PASSENGERS REGARDING THIS ISSUE WITH THE ACCELERATION. LACK OF RESPONSE FROM LEXUS IS VERY DISAPPOINTING ESPECIALLY THE AMOUNT OF MONEY I SPENT ON MY CAR.
THE REACTION OF THE VEHICLE TO THE GAS PEDAL IS EXTREMELY TOUCHY AT LOW SPEEDS. IT IS SO TOUCHY, THAT IF YOU HIT A POT HOLE OR BUMP IN THE ROAD, IT IS DIFFICULT TO KEEP YOUR LEG STILL ENOUGH TO NOT FLUCTUATE THE GAS PEDAL AND SEND THE CAR LUNGING FORWARD.. THIS IS A HUGE SAFETY CONCERN WHEN DRIVING IN PARKING LOTS OR AREAS WHERE…
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THE REACTION OF THE VEHICLE TO THE GAS PEDAL IS EXTREMELY TOUCHY AT LOW SPEEDS. IT IS SO TOUCHY, THAT IF YOU HIT A POT HOLE OR BUMP IN THE ROAD, IT IS DIFFICULT TO KEEP YOUR LEG STILL ENOUGH TO NOT FLUCTUATE THE GAS PEDAL AND SEND THE CAR LUNGING FORWARD.. THIS IS A HUGE SAFETY CONCERN WHEN DRIVING IN PARKING LOTS OR AREAS WHERE THERE ARE PEDESTRIANS, AS THE VEHICLE WILL LUNGE FORWARD AT THE SMALLEST MOVEMENT OF THE GAS PEDAL. THIS HAS BEEN AN ISSUE SINCE THE DAY OF PURCHASE. STILL AN ISSUE AT 2,000 MILES.
THE VEHICLE EXPERIENCES A DANGEROUS ACCELERATION DELAY AT CERTAIN SPEEDS. THIS IS NOT A MINOR DELAY, BUT ONE THAT IS LARGE ENOUGH TO CAUSE AN ACCIDENT. WHEN PULLING ONTO AN INTERSTATE RAMP OR PASSING ANOTHER VEHICLE, THIS PROBLEM BECOMES A HUGE SAFETY CONCERN. YOU NEVER REALLY KNOW WHEN IT WILL HAPPEN, SO THERE IS NO CONFIDENCE …
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THE VEHICLE EXPERIENCES A DANGEROUS ACCELERATION DELAY AT CERTAIN SPEEDS. THIS IS NOT A MINOR DELAY, BUT ONE THAT IS LARGE ENOUGH TO CAUSE AN ACCIDENT. WHEN PULLING ONTO AN INTERSTATE RAMP OR PASSING ANOTHER VEHICLE, THIS PROBLEM BECOMES A HUGE SAFETY CONCERN. YOU NEVER REALLY KNOW WHEN IT WILL HAPPEN, SO THERE IS NO CONFIDENCE IN THE REACTION OF THE VEHICLE. I CURRENTLY HAVE 2000 MILES ON THIS AND IT HAS BEEN A PROBLEM SINCE DAY ONE. IT SEEMS TO BE GETTING WORSE.
CAR IS UNSAFE AS YOU NEVER KNOW HOW IT WILL REACT WHEN YOU PRESS THE GAS PEDAL. OFTEN TIMES YOU PRESS IT TO ACCELERATE A LITTLE AND IT'S LIKE YOU LET OFF THE GAS ENTIRELY. YOU THEN HAVE TO AGGRESSIVELY PRESS THE PEDAL DOWN TO WHICH IT REACTS WILDLY. SOMETIMES YOU BARELY TOUCH THE PEDAL AND IT TAKES OFF BUT MOST TIMES YOU GET LIT…
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CAR IS UNSAFE AS YOU NEVER KNOW HOW IT WILL REACT WHEN YOU PRESS THE GAS PEDAL. OFTEN TIMES YOU PRESS IT TO ACCELERATE A LITTLE AND IT'S LIKE YOU LET OFF THE GAS ENTIRELY. YOU THEN HAVE TO AGGRESSIVELY PRESS THE PEDAL DOWN TO WHICH IT REACTS WILDLY. SOMETIMES YOU BARELY TOUCH THE PEDAL AND IT TAKES OFF BUT MOST TIMES YOU GET LITTLE TO NO RESPONSE. ACCELERATION DOES NOT REACT LINEAR IN CONJUNCTION WITH THE GAS PEDAL. THIS ISSUE ONLY EXISTS AS THE CAR LEARNS YOUR DRIVING. CAR DRIVES FINE WHEN THIS LEARNING IS CLEARED FROM COMPUTER MEMORY. LEXUS SAYS THIS IS NORMAL BUT HOW CAN ROLLING OUT INTO TRAFFIC AND WAITING TO GET HIT BE NORMAL? THEY WON'T RELEASE OR UPDATE THE PROGRAMMING BECAUSE THIS WOULD THEN AFFECT THE MPG NUMBER THEY ARE CLAIMING. TO BE CLEAR, GENTLY START TO PULL OUT TO MERGE INTO TRAFFIC, PRESS GAS PEDAL TO GET OUT OF THE WAY OF CARS COMING AT YOU AND NO REACTION FROM CAR. BIG DEAD SPOT IN THE PEDAL RANGE . NOW CARS ARE CLOSING IN SO YOU HAVE TO STOMP THE GAS TO SAVE YOURSELF. HAPPENS CONTINUOUS ONCE CAR LEARNS YOUR DRIVING. THIS IS ALL IN THE NORMAL MODE DEFAULT SETTINGS FOR POWERTRAIN.
AT 1800 MILES, VEHICLE STARTED TO HESITATE WHEN PRESSING ON GAS PEDAL. WHEN ACCELERATING FROM STOP, VEHICLE IS HESITATING AND STUDDERING VERY BADLY. THIS IS AFFECTING ACCELERATING AND CAUSING A SEVERE SAFETY ISSUE WHILE DRIVING. WHILE AT HIGHWAY SPEEDS, VEHICLE CONSTANTLY IS LUNGING HESITATING WHEN TRYING TO MERGE INTO TRAFFIC. …
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AT 1800 MILES, VEHICLE STARTED TO HESITATE WHEN PRESSING ON GAS PEDAL. WHEN ACCELERATING FROM STOP, VEHICLE IS HESITATING AND STUDDERING VERY BADLY. THIS IS AFFECTING ACCELERATING AND CAUSING A SEVERE SAFETY ISSUE WHILE DRIVING. WHILE AT HIGHWAY SPEEDS, VEHICLE CONSTANTLY IS LUNGING HESITATING WHEN TRYING TO MERGE INTO TRAFFIC. THIS HAS ALMOST CAUSED 3 ACCIDENTS AS IN STOP AND GO TRAFFIC, WHEN PRESSING ON GAS TO ACCELERATE, CAR IS SHUDDERING AND NOT FINDING RIGHT GEAR. DO NOT FEEL SAFE IN CAR. FEELS LIKE CAR IS GOING TO STALL OUT !!
TL* THE CONTACT OWNS A 2017 LEXUS RX350. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE BEGAN TO HESITATE WHILE THE ACCELERATOR PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN UNKNOWN LOCAL DEALER, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS TAKEN TO ANOTHER DEA…
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TL* THE CONTACT OWNS A 2017 LEXUS RX350. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE BEGAN TO HESITATE WHILE THE ACCELERATOR PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN UNKNOWN LOCAL DEALER, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS TAKEN TO ANOTHER DEALER (BELL LEXUS NORTH SCOTTSDALE, 18555 N. SCOTTSDALE, SCOTTSDALE, AZ 85255) WHERE IT WAS DIAGNOSED THAT THE COMPUTER SOFTWARE NEEDED TO BE UPDATED. THE CONTACT TOOK THE VEHICLE BACK TO THE UNKNOWN LOCAL DEALER AND WAS INFORMED THAT THE FAILURE COULD NOT BE REPAIRED. THE VEHICLE WAS BEING SERVICED AS A LEMON LAW VEHICLE. THE MANUFACTURER WAS NOTIFIED AND CONFIRMED THE INFORMATION PROVIDED BY THE DEALER. THE FAILURE COULD NOT BE REMEDIED. THE FAILURE MILEAGE WAS APPROXIMATELY 4,500.
TL* THE CONTACT OWNS A 2017 LEXUS RX350. WHILE DRIVING, THE INSTRUMENT PANEL TURNED RED AND WENT BLANK. THE CONTACT HEARD THREE BEEPS AND THE INSTRUMENT PANEL TURNED BLACK. THERE WERE NO WARNING INDICATORS ILLUMINATED PRIOR TO THE FAILURE. THE FAILURE OCCURRED NUMEROUS TIMES IN THE PAST YEAR. THE VEHICLE WAS TAKEN TO LEXUS OF WA…
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TL* THE CONTACT OWNS A 2017 LEXUS RX350. WHILE DRIVING, THE INSTRUMENT PANEL TURNED RED AND WENT BLANK. THE CONTACT HEARD THREE BEEPS AND THE INSTRUMENT PANEL TURNED BLACK. THERE WERE NO WARNING INDICATORS ILLUMINATED PRIOR TO THE FAILURE. THE FAILURE OCCURRED NUMEROUS TIMES IN THE PAST YEAR. THE VEHICLE WAS TAKEN TO LEXUS OF WATERTOWN (330 ARSENAL ST, WATERTOWN, MA 02472), BUT COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 12,100. THE CONSUMER STATED THE SEAT HEATER,FLOOR VENTS, CUP HOLDER, AND THE REAR SPEAKERS DID NOT PROPERLY OPERATE. THE DISPLAY BETWEEN THE TACHOMETER AND SPEEDOMETER WAS BLANK. *JS
IN ORDER TO START THE CAR, THE BRAKE MUST BE PRESSED. HOWEVER, IF THE CAR SITS WITHOUT USE FOR SEVERAL DAYS, THE BRAKE PEDAL CANNOT BE PRESSED DOWN AND THE CAR WILL NOT START. A WARNING LIGHT INDICATES THAT "BRAKE POWER IS LOW, STOP IN A SAFE PLACE". ATTACHED IS A PICTURE OF THE WARNING LIGHT. THE CAR CAN GENERALLY BE SUBSE…
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IN ORDER TO START THE CAR, THE BRAKE MUST BE PRESSED. HOWEVER, IF THE CAR SITS WITHOUT USE FOR SEVERAL DAYS, THE BRAKE PEDAL CANNOT BE PRESSED DOWN AND THE CAR WILL NOT START. A WARNING LIGHT INDICATES THAT "BRAKE POWER IS LOW, STOP IN A SAFE PLACE". ATTACHED IS A PICTURE OF THE WARNING LIGHT. THE CAR CAN GENERALLY BE SUBSEQUENTLY STARTED BY EITHER WAITING SEVERAL MINUTES OR EXERTING A LOT OF PRESSURE ON THE BRAKE PEDAL, AND THE WARNING LIGHT DISAPPEARS. I'VE HAD MANY CONVERSATIONS WITH LEXUS SERVICE AND LEXUS CORPORATE OFFICE. THEY'VE SAID THAT THIS CONDITION EXISTS WITH "EVERY 2016-2018 RX 350" AND IS NOT UNIQUE TO MY CAR. THEY'VE ALSO SAID THIS CONDITION CANNOT BE REPAIRED, DESPITE THE FACT THAT THE WARNING LIGHT INDICATES IT IS DANGEROUS TO DRIVE THE CAR. LEXUS CONFIRMED THAT DESPITE THE FACT THE CONDITION OCCURS AFTER THE CAR HAS SAT FOR A PERIOD OF TIME, IT IS NOT A BATTERY ISSUE AND LIKELY OCCURS BECAUSE OF PRESSURE LOST IN THE BRAKE SYSTEM. ALTHOUGH I QUESTION LEXUS' STATEMENTS THAT THIS CONDITION EXISTS WITH EVERY CAR, IT IS DISCONCERTING THAT THEY CANNOT OR WILL NOT FIX A CONDITION THAT MAY BE DANGEROUS TO CONTINUE DRIVING, AS INDICATED BY THE CAR'S WARNING LIGHT. THIS CONDITION OCCURS REGULARLY.
Official recalls
320V682000 · Fuel System, Gasoline:delivery:fuel Pump
Nov 4, 2020
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 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Consequence & remedy
Consequence: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
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. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Note: This recall is an expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
20V012000 · Fuel System, Gasoline:delivery:fuel Pump
Jan 13, 2020
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 January 13, 2020. On March 4, 2020, Toyota expanded the recall to include certain 2014-2015 Toyota 4Runner and Land Cruiser, 2018 Avalon, Corolla, 2014 FJ Cruiser, 2017 Sienna and Lexus 2018 ES 350, 2018-2019 GS 300, 2013-2014 GS350, 2014-2015 GX 460, IS 350 and LX 570, 2014 IS F, 2018-2019 IS 350, LC 500H and LS 500H, 2013-2015 LS 460, 2015 NX 200T and RC350, 2017 RC 200T and RX 350. Toyota also removed the 2018-2019 Toyota 4Runner and Land Cruiser and 2018-2019 Lexus GX 460 and LX 570 and 2019 NX300 from inclusion in this recall. On March 19, 2020, Toyota expanded the recall to include 2015 Lexus GS350 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Consequence & remedy
Consequence: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
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. Toyota's numbers for this recall are 20TB02 and 20TA02 for Toyota vehicles and 20LB01 and 20LA01 for Lexus vehicles.
18V211000 · Service Brakes, Hydraulic:power Assist:vacuum
Apr 3, 2018
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. During the manufacturing process, the oil galley in the rotor for the brake booster vacuum pump assembly may have been improperly machined possibly resulting in a sudden loss of brake assist.
Consequence & remedy
Consequence: A sudden loss of braking assist can increase the risk of a crash.
Remedy: Toyota will notify owners, and dealers will replace the brake booster vacuum pump, free of charge. The recall began on May 9, 2018. Owners may contact Toyota customer service at 1-888-270-9371, or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are J0K/JLD.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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