2018 Lexus RX Complaint Log

1. Check engine light comes on. 2. Intelligent collision system (ICS) plashing while driving

The 12.3-inch display of the instrument panel is blank at startup. Operating the vehicle with this display blank reduces the ability to see certain malfunction indicators. If malfunctions occur while driving, continuing to drive could lead to an increased risk of a crash or an increased risk of injury in the event of a crash.

I have a panoramic sunroof and the sunshade retracts when the switch is pressed but the shade bunches up and stops before fully retracting. It appears from online searches that it’s a well known problem with Lexus and can result in a very costly repair that’s caused in no part by the owners of the vehicles. A recall of this manufacturing defect needs to be issued.

The contact owns a 2018 Lexus RX 350. The contact stated that upon arriving to the residence and parking the vehicle, the front driver’s side door failed to open while pulling on the interior door handle. The contact rolled down the window and was able to open the front driver’s side door while pulling the exterior door handle. The vehicle was taken to a local dealer, where it was diagnosed that the front driver’s side door handle needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to Lexus Special Service Campaign Number: 20LC02. The manufacturer was made aware of the failure. The failure mileage was approximately 47,518.

On our 2018 Lexus RX 350 L, the left front interior door handle broke and we had to roll the window down and open the door from the outside. I learned that there was a recall - Lexus Special Service Campaign 20LC02 but our Lexus VIN was not listed. Our Lexus Model/year was manufactured in 05/18 and that was within the production period of the recall, April 2015 to September 2018. I believe that Lexus not including our suv's VIN in the recall was an oversight. As a result, I reached out to Smithown Lexus in NY and they did not honor the recall and wanted $219 + tax just diagnose the problem. I also called Lexus Guest Experience Center at 1-800-255-3987 and thety also did not honor the recall. Since, I purchased and installed the door handle. Is there a way I can get get reimbursed for parts and labor of $450?

The fuel pump sensor electrically shorted. The assembly failed. (tube assembly, fuel suction w/ pump and gage), gasket, fuel suction tube set. It is available for inspection. The car could stall at any time because the fuel pump sensor cannot accurately determine the fuel level or how much fuel is being injected into the engine. There was a warning light. Lexus covered two other fuel pump safety issues for this make and model (2018 RX 450h), one under a manufacturer recall and one through a customer support program. This is a THIRD defect with the fuel pumps on these vehicles for which Lexus has NOT offered coverage or notified its customers.

iOS lite has come on for the second time. Sensor had to be replaced early this year. Cost $500.

Brake squack/barking noise when brakes are depressed.

I am writing to raise a serious concern regarding a issue with my 2018 Lexus RX450hL involving the brake actuator. Since purchasing the vehicle at 63,000 miles, I have noticed hissing, clicking, and squeaking noises when applying the brakes. As the mileage increased to 83,000, these noises have worsened, becoming unbearable. In addition, I am experiencing a shaky driver-side mirror and a rusting hood latch, both of which present safety concerns. For a vehicle under 5 years old , I believe these problems do not reflect the quality I expected, particularly given the premium price I paid. According to Lexus' Technical Service Bulletin (TSB) #L-SB-0032-23 Rev, issued in October 2023, which addresses squawk or knock noises from the engine compartment when the brake pedal is pressed or released, affecting models like the RX450hL. My vehicle exhibits symptoms similar to those described in the TSB. The vehicle was regularly maintained by the previous owner at Lexus of Thousand Oaks and Woodland Hills. Despite this, the major part like brake actuator has failed prematurely. Given Lexus' reputation as a luxury brand, it is unacceptable that such a critical component would fail before the vehicle is 5 years old or has reached 100,000 miles. The combination of the brake actuator defect, the shaky mirror, and the rusting hood latch is disappointing, especially for a vehicle of this caliber. When I initially contacted Lexus Customer Service, I was also dealing with rusting parts and a failing brake booster. Lexus of Cerritos provided a repair estimate of around $5,000 for brake actuator. I was advised to reach out to Lexus Customer Service after my request for a good faith repair was denied due to the inability to obtain the complete maintenance history. However, I have since confirmed with the previous owner and Lexus that the vehicle was regularly serviced. I am also aware that Lexus has issued brake actuator-related recalls for several models.

1. At [XXX] on [XXX], I was pulling into my gym's parking lot, when I stepped on the break to park my car, instead of stopping, the car accelerates rapidly and crashed through the other side of the sidewalk where there were light pole and cement walls, throwing me forward and backward with seat belt on, I was in total shock! 2. My insurance sent a field inspector to the body shop 2X in hope to repair my car but ended up declaring it a Total Loss. 3. Lexus said they would send a field tech to get the EDR (Event Data Recorder) data from my 2018 Lexus RX350 within 30 days, but the results won't be available for 30-45 days after that. Lexus's slow response to this accident concerns and disappoints me b/c it was a serious crash that Lexus should treat it seriously and promptly. 4. The disbelief of a 'young' car with only 12297 miles could have issues like this puzzled me and drove me to do a lot of online research, then I came across this site [XXX] which contains an article titled '10 Common Problems of A Lexus RX350'. Problem #5 described exactly what had happened to me: 'ONE RECURRING PROBLEM THIS CAR HAS IS THAT THE SYSTEM MALFUNCTIONS SEVERELY. THIS TYPICALLY HAPPENES WHEN THE DRIVER IS TRYING TO PARK THE VEHICLE. REPORTS PAINT THE SAME PICTURES REPEATEDLY: THE DRIVER IS PULLING INTO A PARKING LOT, THEY PUSH THE BREAK PEDAL, AND INSTEAD OF STOPPING, THE CAR ACELERATES RAPIDLY, WHICH RESULTS IN A CRASH." Based on this article, it seems that Lexus should have issued a recall, but no! 5. The strange thing was that NO airbags were exploded/activated, yet the vehicle was damaged to beyond repair, it makes me wonder if there was an issue with the airbags too. If this incident had occurred at an intersection, I dare not imagine the outcome...I could have been killed or critically injured along with other innocent people on the road. I am very traumatized by the whole experience and sadly, the feeling seems to have gotten worse as time goes. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

If you by mistake forget to put your car on Parking the transmission does not lock by itself creating a hazard of movement of the vehicule that can cause an injury's or even worse. That was reported to the dealer and dismissed the issue as normal.

The driver-side mirror shakes noticeably while driving making it hard to see what's on your left, specially at night. Even though I'm reporting in 2024 w/ 55k miles, I just bought this L-Certified CPO Lexus 1 week ago, so the problem was likely there before. There are a couple of other signs that this car doesn't handle the South Florida heat very well and my guess is the adhesive on the mirror has started to fail. There is a service notice on late model NX to address this that replaces the entire mirror assembly and they'll likely do this as well when I take it in, but it is a fairly simple issue to resolve yourself following some YouTube videos even if they're not specific to this make/model.

Two days ago, upon entering our vehicle, there was a smell of gasoline as we drove. Our fuel guage wend from 1/4 tank to EMPTY in minutes. I pulled into a gas station and when attached the nozzle, gas entering the tank was POURING out from underneath. I drove the car to the venue we were headed to and parked on a dirt/gravel spot so as to limit fuel runoff to nearby vehicles. We had the vehicle towed to Bob Tyler Toyota, the nearest Lexus type service center. I called service at Lexus of Mobile and the employer stated that there are no recalls. The free flowing fuel endangered not only my and my wife but anyone around the vehicle. No warning lights whatsoever. The tow driver concurred that fuel was POURING until the tank was emptied. I have not been contacted by the service department thus far.

The driver side indoor door handle no longer works. Despite my model being part of the special service campaign 20LC02, dealer says that my VIN number is not covered despite it being the exact problem described.

The contact owns a 2018 Lexus RX350. The contact stated at start-up there was raw a fuel odor entering the cabin of the vehicle. There was no warning light illuminated. The failure occurred on several occasions. The vehicle was taken to the dealer however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 42,548.

HVAC servo motor failure. There are many complaints on internet if you google. Multiple other lexus models have CSPs regarding same problem too..

Engine block #1 misfire , 02/gasoline ratio level problem

The contact owns a 2018 Lexus RX350. The contact stated while driving approximately 60 MPH, and as she was approaching a toll road gate, there were several lanes that were closed and marked with traffic cones. The contact stated that as she was turning the wheel to steer into an open gate she crashed into one of the traffic cones. The contact stated that her vehicle was equipped with front collision avoidance and that normally the vehicle would have automatically braked before crashing into any objects in front of the vehicle. The contact stated that the vehicle rolled onto its roof. The contact stated that all the air bags had deployed. The contact stated that emergency services and the police were on the scene. The contact stated that the police issued her a traffic violation ticket. The contact stated that she had bruises on her face and arms, shoulders, and chest. The contact refused treatment on-site and was not transported to the hospital. The contact stated that later that day her husband drove her to the emergency room. The vehicle was towed to an impound lot and was later declared a total loss by the contact's insurance provider. The manufacturer had not been informed of the failure. The failure mileage was approximately 27,000.

Lexus 2018 Rx450hl is known to have issue with brake actuator. A faulty brake actuator causes the car to fail sudden stop. It’s definitely a safety issue. Lexus have technical service information bulletin(tsib) for this issue since 2019. They never contact the owner to replace the faulty part. So if the car is under warranty they will fix the problem with no cost. But if the warranty pass the threshold, they are charging the costumer 3.5k to replace it. It’s an absolute horrible business practices. This part is a manufactured defect and it’s a safety issue.

This car just send me a warning light last night about the all wheel drive system and issues about the engine, I was in the dealer this morning and I tell them the problem with the car but they was charging me for everything and left the lexus repair shop I work in my car and this not supposed to be happen I care of my car really good but now I hace to stop working because all this issues with the car. Now the car just stop working and I'm stock in middle of the city without another way to work and I don't have money for nothing. Please help me!

Car displaying parking brake malfunction and and cruise control malfunction intermittent when using the parking break, seem that TSB (T-SB-0168-19) was open for Camay from 2018 to 2020 exhibiting the same issue but not for this car. This a safety concern since parking brake becomes disable, this issue resets after restarting the car again.

The slightly opened sunroof spontaneously exploded with shattered glass flying outward and some glass pieces falling on my husband while he was driving. The vehicle can be inspected; however, a Lexus dealership replaced the sunroof glass without charge, the next day after the incident. The unexpected loud explosion with flying glass startled my husband while he was driving. Fortunately, there were no cars around him at the time, because the fright caused by the explosion could have caused a multi-vehicle accident. A Lexus dealer inspected the sunroof damage, and though they would not acknowledge this was a manufacturer defect, they did replace the glass without charge, stating it was a "one-time goodwill gesture." The day before the repair, the damage was inspected by Senior Officer Sampson of the Maryland Transportation Authority (phone number 410-537-1197) on December 13, 2021 (not long after the incident). There were no warnings or symptoms of any kind that would have alerted the driver to the spontaneous explosion.

The car makes a "Brake Squawk" noise when the brake pedal is applied. The noise sometimes is unbearable. Dealer replaced the brake actuator. The noise came back after a few months.

I TRIED ACCELERATING ON THE HIGHWAY (PCH IN SANTA MONICA, CA) WHILE TRAVELING FORWARD AT ABOUT 45-50 MPH, BUT THE VEHICLE HESITATED. THIS IS THE FORTH TIME THERE HAS BEEN A HESITATION IN ACCELERATION SINCE OWNING THE CAR, BUT THIS TIME THERE WAS A MESSAGE ON MY DASH. THE MESSAGE STATED THAT THERE WAS "AN OBSTRUCTION WITH THE PEDAL AND ACCELERATION WAS RETARDED." I LATER LOOKED DOWN AT THE PEDALS FELT AROUND THE THEM, BUT FOUND NOTHING OBSTRUCTING. AT THE TIME, THE VEHICLE HAD LESS THAN A QUARTER TANK OF GAS BUT NOT LOW ENOUGH FOR THE LOW FUEL WARNING TO COME ON. AFTER DRIVING ABOUT 15 MORE MILES - THE LOW FUEL WARNING CAME ON. I HAVE ALWAYS PUT PREMIUM FUEL IN THE VEHICLE AND MY WIFE DOESN'T PUT GAS IN THE VEHICLE. A RECALL WAS RECENTLY PERFORMED PERTAINING TO THE FUEL PUMP AT THE DEALER - PERTAINING TO LOW

BRIDGESTONE TIRES, TX8A EC1, SIZE P235/55R20, ARE 2 YEARS OLD WITH JUST OVER 14000 MILES, AND ALL TIRE THREAD IS GONE. LOCAL TIRE STORE TELLS ME THAT THEY MUST BE REPLACED AND HE SUSPECTS MANUFACTURING DEFECTS. TIRES WERE ROTATED BY LEXUS AT 5000 MILES AND 10000 MILES.

MY WIFE WAS DRIVING DOWN I-75 ON A VERY RAINY DOWNPOUR. SHE TURNED ON THE WIPERS AND THE PASSENGER SIDE WIPERS DID NOT WORK. SHE ARRIVED HOME AND TOOK THE CAR THE NEXT DAY TO A LEXUS DEALERSHIP. THE BOLTS WERE LOOSE. THERE SHOULD BE A FAIL SAFE TO PREVENT THIS FROM HAPPENING. OF ALL THE CARS WE HAVE OWNED..........THIS HAS NEVER HAPPENED BEFORE.(INCLUDING A 2007 LEXUS WE ALSO DRIVE).

WHILE TRAVELING NORTH ON INTERSTATE 95 IN THE MIDDLE LANE AT APPROXIMATELY 60MPH AFTER SWITCHING INTO LEFT LANE SAW BRAKE LIGHTS AHEAD AND STEPPED ON BRAKE PEDAL. HEARD SLIGHT POP SOUND, BRAKE PEDAL WENT IMMEDIATELY TO THE FLOOR. CAR DID NOT STOP OR SLOW DOWN. SWERVED TO LEFT TO AVOID DIRECTLY HITTING CAR IN FRONT OF ME BUT HIT JERSEY WALL AND THE CAR. MY CAR KEPT GOING ANOTHER COUPLE HUNDRED YARDS BEFORE IT FINALLY STOPPED. CAR WAS TOTALED.WITHOUT FUNCTIONING BRAKES ADAPTIVE CRUISE CONTROL OR FORWARD COLLISION BRAKING WERE USELESS.

DEAR CUSTOMERE SERVICES, I GOT A NOTICE FOR RECALL FUEL PUMP MAY FAIL 1- I MAKE AN APPOINT WITH LEXUS OF LAS VEGAS FOR A RECALL ON MAY 06, 2020 LATER ON THE LEXUS OF LAS VEGAS CANCELED MY AN APPOINTMENT DUE TO THE PART WAS NOT AVAILABLE ' 2- I MAKE ANOTHER APPOINTMENT TO BRING MY CAR FOR A RECALL WITH THE SAME ISSUE AFTER 1 DAY THEY SEND ME AN EMAIL TO CANCELED MY SERVICES DUE TO THE PART IF THE PART NOT AVAILABLE OR LEXUS NEED TO RECALL FOR SAFETY IF THE VEHICHE STALL OCCUR WHILE DRIVING, THIS COULD INCREASE THE RISK OF CRASH LEXUS DO NOT NEED TO SEND THE RECALL NOTICE TO THE CONSUMER AND LATER THE LEXUS DEALER CANCEL THE SERVICES DUE TO THA PART NOT AVAILABLE

NOTHING YET; THIS IS A PRECAUTIONARY COMPLAINT TO BE NOTIFIED ASAP WHEN REPLACEMENT IS AVAILABLE

TL* THE CONTACT OWNS A 2018 LEXUS RX350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V012000 (FUEL SYSTEM, GASOLINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CALLED KEYES LEXUS (5905 VAN NUYS BLVD, VAN NUYS, CA 91401, (818) 538-2990) WHERE IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT STATED THAT SEVERAL ATTEMPTS WERE NEEDED TO START THE VEHICLE ON SEVERAL OCCASIONS. ADDITIONALLY, THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE FAILURE WAS INTERMITTENT. THE CONTACT ALSO STATED THAT WHILE DRIVING UPHILL THERE WAS RATTLING SOUND COMING FROM THE REAR OF THE VEHICLE. THE APPROXIMATE FAILURE WAS 21,500. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

TL* THE CONTACT OWNS A 2018 LEXUS RX350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V012000 (FUEL SYSTEM, GASOLINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. NALLY LEXUS LOCATED AT 2750 COBB PKWY SE, SMYRNA, GA 30080 AND THE MANUFACTURER WERE MADE AWARE OF THE ISSUE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

ON APRIL 15 2020, WAS ENTERING A PARKING SPACE IN FRONT OF A SPROUTS SUPERMARKET AT 12500 WESTHEIMER RD., HOUSTON, TEXAS 77077. THE LEXUS RX350 (2018) FAILED TO STOP AND CRASHED INTO A LARGE BUILDING SUPPORT COLUMN WHICH DID SERIOUS DAMAGE TO THE LEXUS AND TO THE COLUMN. THIS IS AN EXPENSIVE CAR AND CAME EQUIPPED WITH THE EMERGENCY CRASH SYSTEM. THIS FEATURE DID NOT WORK TO STOP THE CAR FROM HITTING THE BUILDING. IN THE PAST IT HAS STOPPED THE CAR BUT ONLY MOST OFTEN IT DOES NOT WORK...NO ONE WAS INJURED NOR WERE ANY PEOPLE ON THE PARKING AREA AFFECTED. *TR

TL* THE CONTACT OWNS A 2018 LEXUS RX350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V012000 (FUEL SYSTEM, GASOLINE) HOWEVER THE PART NEEDED FOR THE REPAIR WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER HILTON HEAD LEXUS LOCATED AT (540 NEW RIVER PKWY, HARDEEVILLE, SC 29927), AND MANUFACTURER WAS MADE AWARE OF THE ISSUE AND INFORMED THE CONTACT THAT PART WAS NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

TL* THE CONTACT OWNS A 2018 LEXUS RX350. THE VIN WAS NOT PROVIDED. THE CONTACT STATED THAT WHILE DRIVING ABOUT 75 MPH, THE REAR DRIVER'S AND REAR PASSENGER'S WINDOWS EXPLODED WITHOUT IMPACT. THE VEHICLE WAS TAKEN TO THE LEXUS OF PEMBROKE PINES DEALER, LOCATED AT 16150 PINES BLVD, PEMBROKE PINES, FL 33027, WHERE IT WAS STATED THAT THE FAILURE WAS DUE TO AN IMPACT. THE CONTACT STATED THAT THE FLORIDA STATE PATROL FILED A REPORT WHICH STATED THAT THERE WAS NO IMPACT. THE MANUFACTURE WAS MADE AWARE OF THE FAILURE AND STATED THAT AN INVESTIGATION WOULD BE OPENED AND SHOULD BE COMPLETED WITHIN FOUR TO SIX WEEKS. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. CONSUMER WOULD LIKE TO BE RELEASED FROM LEASE OBLIGATIONS.*JB

CAR HAS LOW PRESSURE FUEL PUMP THAT IF IT FAILS MAY RESULT IN CAR NOT RUNNING, WHICH COULD BE VERY DANGEROUS SHOULD IT HAPPEN WHILE ON FREEWAY. A RECALL WAS ISSUED IN JANUARY BY LEXUS, AND NOW AT THE END OF JUNE, THERE IS STILL NO FIX FOR THE PROBLEM. *TR

TL* THE CONTACT OWNS A 2018 LEXUS RX350. THE CONTACT STATED THAT THE HEADLIGHTS PROJECTED APPROXIMATELY 75 FEET AHEAD OF THE VEHICLE, WHICH MADE IT DIFFICULT FOR THE DRIVER TO SEE ANYTHING CLOSE UP. THE VEHICLE WAS TAKEN TO NEWPORT LEXUS (949-482-6122, LOCATED AT 3901 MACARTHUR BLVD, NEWPORT BEACH, CA 92660) TO BE DIAGNOSED, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER SENT A REPRESENTATIVE TO INSPECT THE VEHICLE WHO STATED THAT THE MATTER WOULD BE RESEARCHED. THE CONTACT WAS NOT CALLED BACK. THE FAILURE MILEAGE WAS APPROXIMATELY 15,000.

I GOT INTO ACCIDENT AND NO AIRBAG DEPLOYED EVEN AT HIGH IMPACT AND OTHE OTHE VEHICLE FLIPPED OVER.

I WAS TRAVELING ON A 4 LANE DIVIDED HIGHWAY AT 60MPH. WEATHER CONDITION WAS SUNNY AND 10DEG. SUDDENLY I HEARD A LOUD CRACKING NOISE THAT WAS STARTLING. FORTUNATELY THERE WERE NO OTHER CARS AROUND AND THE INTERIOR SHADE WAS CLOSED. I ARRIVED AT MY DESTINATION TO FIND THE SUNRROOF HAD SHATTERED AND THERE WAS GLASS SHARDS ON THE INTERIOR SHADE. I HAVE ONLY HAD THIS CAR 5 MO., AM THE ONLY DRIVER. THE CAR IS PARKED IN THE GARAGE OVERNIGHT AND I HAVE NEVER OPENED THE SUNROOF OR THE INTERIOR SHADE. I RETURNED THE CAR WITHIN TWO HOURS OF THE EVENT FOR REPAIR ASSUMING IT WAS A DEFECTIVE SUNROOF. I'VE BEEN TOLD THAT IT IS NOT UNDER WARRANTY AND THAT IT WILL COST $960 PLUS TAX TO FIX. SINCE MY INSURANCE DEDUCTIBLE IS $1000, THIS IS AN OUT OF POCKET EXPENSE! I HAVE REPORTED THE EVENT TO THE LEXUS GUEST EXPERIENCE CENTER AND THE REP SAID THAT THEY WILL REVIEW BUT THERE IS NO PROMISE OF REIMBURSEMENT. I AM ALSO REPORTING THIS TO CONSUMER REPORTS. SINCE EXPLODING SUNROOFS HAVE BEEN A PROBLEM FOR YEARS WITH DIFFERENT MAKES AND MODELS, I FEEL IT IS IMPERATIVE THE NHTSA DO MORE TO REGULATE THE MANUFACTURERS.

WHEN STEPPING ON THE GAS PETAL ONE OF THREE THINGS HAPPEN. 1. NORMAL ACCELERATION WHICH YOU EXPECT AFTER 60 YEARS OF DRIVING AND WHICH WE OBTAIN FROM A 2014 LEXUS RX350 THAT WE OWN. 2. HESITATION OF BETWEEN 1 AND 5 SECONDS BEFORE ACCELERATION BEGINS. 3 EXCESSIVE ACCELERATION ( SURG OF ACCELERATION MUCH MORE THAN EXPECTED). THIS EXCESS ACCELERATION MAY HAPPEN AFTER THE HESITATION OR THERE COULD BE "NORMAL" ACCELERATION AFTER THE HESITATION AND HAPPENS WHEN ACCELERATING AFTER BEING STOPPED.. THE HESITATION AND EXCESS ACCELERATION CAN BE FROM A STOPPED POSITION IE STOP SIGN OR TRAFFIC LIGHT OR WHILE MOVING AND NORMAL SPEEDS. THERE SEEMS TO BE A CONSISTENT HESITATION AT THE 60 TO 65 MPH WHEN ATTEMPTING TO ACCELERATE ON HIGHWAY. AT 70 MPH EVERYTHING SEEMS TO WORK AS EXPECTED. THE SURGING AND HESITATING SEEMS TO BE AT LOWER SPEEDS AND AND WHEN MAKING TURNS IN CITY STREETS AND MOVING UP OR DOWN HILLS AND IN PARKING LOTS WHEN MOVING OUT OF PARKING SPACES, BUT IT HAPPENS AT ALL SPEEDS UP TO 65 MPH. THE CARS HAS ACCELERATED WITH OUT DEPRESSING THE ACCELERATOR - THIS COULD HAVE BEEN A DELAYED ACCELERATION AFTER PRESSING THE ACCELERATOR A HALF BLOCK BEFORE. THIS HAPPENED WITH A LEXUS REPRESENTATIVE WAS IN THE CAR WITH ME - I WAS DRIVING SO HE COULD NOT TELL IF THAT ACTUALLY HAPPENED OR IF I ACCELERATED. STARTING IN EARLY 2019 WE HAVE TOLD LEXUS WHEN THE CAR WAS SERVICED( TWICE YEARLY THAT THE CAR BEHAVED IN THIS MANNER. EACH TIME THAT HAVE TOLD US THEY DID NOT RE-CREATE THE DESCRIBED BEHAVIOR AND THE CAR WAS PERFORMING AS DESIGNED.

HESITATION UPON ACCELERATION. THE ENGINE DOES NOT RESPOND IN A LINEAR MANNER WHEN PRESSING THE GAS PEDAL.

1.CONSTANT JERKING SENSATION OCCURS BEFORE VEHICLE SHIFTS INTO LOWER GEARS WHILE AT RELATIVELY LOW SPEEDS AND THROTTLE SETTINGS (25-45 MPH, STOP AND GO CITY DRIVING, MAINTAINING SPEED). 2.WHEN MINIMAL INCREASE IN POWER IS NEEDED OR A MILD GRADE IS ENCOUNTERED, ADDITIONAL THROTTLE PRESSURE SEEMS ONLY TO RESULT IN LOSS OF POWER UNTIL THE TRANSMISSIONS SHIFTS INTO SOME LOWER GEAR. THE VEHICLE THEN ACCELERATES TOO RAPIDLY, FOLLOWED BY THE NEED TO REDUCE THROTTLE PRESSURE ' OR APPLY BRAKES - WHICH IN TURN CAUSES THE TRANSMISSION TO SHIFT BACK TO A HIGHER GEAR. THE SEQUENCE THEN REPEATS ITSELF. 3.NOTE: POOR DRIVABILITY ISSUES ARE REDUCED WHEN THE ENGINE IS COLD. ALSO KEEPING RPM ABOVE 2000 HELPS. 4.DEPENDING ON DRIVING CONDITIONS, THE VEHICLE WILL ACCELERATE WELL WHILE SHIFTING UP THROUGH THE GEARS BUT SEEMS TO LOOSE POWER AS RPM DROPS, FORCING A DOWNSHIFT OR INCREASED THROTTLE POSITION. 5.WHEN UNDER SLIGHT ENGINE LOAD, THE SUSPENSION SEEMS TO AMPLIFY ROAD BUMPS, TO THE EXTENT OF FINDING BUMPS WHERE THERE ARE NONE. THIS CONDITION IS REDUCED WHILE AT IDLE THROTTLE SETTINGS AND COASTING. 6.A RECENT DRIVE THROUGH THE MOUNTAINS PROMPTED ME TO RESORT TO MANUALLY SHIFTING THE TRANSMISSION TO IMPROVE DRIVABILITY BECAUSE OF HILLS AND CURVES. 7.I FREQUENTLY RESORT TO DRIVING IN S4 EXCEPT FOR INTERSTATE DRIVING SO AS TO KEEP RPM ABOVE 2000 TO IMPROVE DRIVABILITY. 8.FREQUENTLY THE ENGINE FEELS TO BE MISSING, RESULTING IN VIBRATION THROUGH STEERING WHEEL AND ACCELERATOR PEDAL. 9.ON FOUR OCCASIONS SINCE OWNERSHIP THE RX HAS SUDDENLY AND EXPECTANTLY ACCELERATED FOR UNKNOWN REASONS, FORCING EMERGENCY BREAKING. THIS IS AN EXTREME SAFETY ISSUE. 10.WHEN USING CRUISE CONTROL (~65 MPH) AND IF THE SET SPEED IS REDUCED A COUPLE OF MPH, THE RPM JUMPS TO 6,000. 11.TRANSMISSION SLOW TO CHOOSE A GEAR WHEN ACCELERATING INTO TRAFFIC.