Lexus RX stalling problems

Filed Aug 21, 2026 · Transmission · VA

The vehicle exhibits a severe, load-based mechanical transmission whine strictly during active acceleration. The pitch of the whining sound rises and falls in direct proportion to the engine's RPMs. This vehicle utilizes the Toyota/Lexus 8-speed automatic transmission architecture, which has a well-documented manufacturing flaw involving internal bearing wear, gear misalignment, and fluid starvation.This mechanical defect poses an immediate and severe safety hazard. The continuous internal wear and gear friction create an unpredictable risk of sudden transmission lock-up, unexpected dropping out of gear, or complete engine stalling while operating at high highway speeds. A sudden loss of motive power on a fast-moving highway leaves the driver completely unable to accelerate out of harm's way, creating an imminent risk of a severe rear-end collision or a catastrophic traffic accident. The manufacturer has failed to issue a safety recall for this known powertrain failure."

Filed Aug 19, 2026 · Engine · 10,637 miles · CO

The contact owns a 2023 Lexus RX 500h. The contact stated that while driving at an undisclosed speed, the vehicle started shaking abnormally and stalled. The contact stated that several unknown warning lights were illuminated during the failure. The failure was a recurring failure. The vehicle was towed to the dealer; however, the dealer was unable to duplicate the failure, and the vehicle was not repaired. The manufacturer was made aware of the failure, and an engineer was sent to inspect the vehicle; however, the contact was informed that the vehicle had passed the inspection; however, the failure persisted. The failure mileage was approximately 10,637.

Filed May 27, 2026 · Engine, Fuel system · MD

While driving the engine stalls. It has jolted back-and-forth at times and had to be taken to a dealer. It’s still stalls when trying to slowly accelerate especially uphills. Low gas mileage barely getting 18 miles per gallon. Warning lights flickering while car stallling. It’s like it’s having a seizure. This has happened a few times.

Filed Mar 17, 2026 · Brakes, Electrical · OK

I purchased this vehicle on January 5, 2026, from a family-owned dealership in Broken Arrow, OK. The vehicle was purchased “as-is” with a guarantee of sale and a Carfax report. After purchasing the vehicle, I drove it home and it remained parked until January 8, 2026. On Thursday, January 8, 2026, the vehicle experienced an unexpected engine stall while I was driving. At the same time, the slip indicator light and traction control appeared to engage. I contacted the dealership immediately to report the issue, and the vehicle was towed back to JT Wholesale Auto Sales on Friday, January 9, 2026. On Tuesday, January 13, 2026, I was informed by the dealership that the vehicle had undergone a complete inspection and that no mechanical issues were found. Relying on this representation, I retrieved the vehicle and drove it home. However, after retrieving the vehicle, I continued to have concerns regarding its condition. On Thursday, January 15, 2026, I took the vehicle to Stellar Auto Service located at 2209 N. Yellowood Ave., Broken Arrow, OK 74012 for an independent inspection. Stellar Auto Service specializes in Lexus and Toyota vehicles. During their inspection, they identified the following issues: • Engine timing chain cover leak • Worn drive belt Stellar Auto Service was informed of the slip indicator light activation and the engine stalling that I had experienced. However, at the time of their inspection, they were unable to identify or reproduce any issues related to the slip indicator light or the stalling concern that I reported. On Sunday, February 15, 2026, the slip indicator light illuminated again, and the vehicle stalled while in operation. I was forced to safely pull off the roadway. I turned the car off, waited, restarted the vehicle, and drove home. The same issue occurred again on Sunday, March 8 and 15th, 2026. While driving, the slip indicator light illuminated and the vehicle stalled. I pulled off the road turned the vehicle off, restarted it.

Filed Jul 3, 2025 · CA

*Three Lexus Dealership Service departments are unable to diagnose the stalling problem so I am unsure what component or system failed or malfunctioned. Yes it is available upon request for inspection. *The stalling happens while engine is cold and at a certain temperature. *The vehicle has been to three dealership service departments and two independant service departments and nobody can find out why it is stalling. *Yes No, No warning lights or messages just stalling. It first appeared a year ago and nobody can detect the problem.

Filed May 17, 2025 · Fuel system · IL

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.

Filed Mar 2, 2025 · Brakes, Electrical · CA

There are multiple recalls on my vehicle and I am experiencing all of the recalls Inverter Failer vehicle stalls out alot. Crank shaft pulley is leaking oil and belt from the power steering maybe detached causing vehicle to stall. Inverter Assembly causing the vehicle to stall and become non drivable. Floor carpet cover and retention clips. And my brake master cylinder leaking fluid causing major break problems. Every item i mentioned is recalls for the vehicle i have

Filed Nov 26, 2024 · Electrical, Engine · FL

For some unknown reason the car will suddenly display multiple warning lights, check engine, service needed, traction control off/inactive then the car will go into reduced engine power mode which prevents acceleration and causes the car to feel like it’s going to stall or shut off. This has happened several times on major high speed highways causing other cars to slam on their breaks, drive recklessly to avoid my failing car. My daughter has been in the car several times when this happened and it took everything in my power to not collide with another vehicle. We have taken the car to the Lexus dealership every time and they have tried to fix the car over a dozen times but it keeps happening. They don’t seem to know the issue or cause, trying several different solutions. How can a car manufacturer not know what is wrong with their own car not how to fix it? What am I supposed to do, just keep driving it and pray an accident never happens? There is no warning when this happens and no way to keep the car from swiftly decelerating or keep the car from using “minimal engine power” which I’m to,d is to protect the engine but I’m more worried about us. The date below is for the most recent incident.

Filed Oct 24, 2024 · Engine, Fuel system · CO

- Uknown: 2023 RX 500H Performance hesitates or stalls when gas is applied to accelerate. When vehicle final start moving after 2-4 seconds, engine revs really high. This is believed to be an issue in the power train and specifically Transaxle issues and ECU programming issues. More on this issue can be found on Lexus service bulletin Record ID #4807268. Yes, vehicle is available for inspection. - Yes, with the vehicle stalling out in cross traffic, it has almost caused me, my wife and child to get t-boned on multiple instances. Lexus corporate and the Lexus dealer had been made aware of this concern on multiple occasions. - No, Dealer has not been able to reproduce after multiple reviews. I do have video proof of the car doing this taken after final attempt for Lexus to review. This video has been sent to Lexus corporate and Lexus Dealer. - Vehicle has been inspected by Lexus dealership as a representative of Lexus corporate. My Dealer has looked at it multiple times and can never duplicate and will not help. I worked with Lexus directly and also were not able to help. Lexus corporate has now turned my case over to their Lemon Law department for review on 7/8/24 due to this issue and many more issues with car. I provided requested information to Lexus Corporate Lemon department on 8/12/24 and have not hear back as of 10/24/24. - Unknown: Issue occurs few time a week since purchased the car on 2/4/2023, but do not recall first experience. Issue occurs more after the car has been sitting for a while on a hot day or not drove in a few days, and will stall out mostly on a left hand turn. The issue feels like the battery is dead and the gas engine has to take over for it causing a lag. When the engine does finally take over it seems to rev really high too. After it does it once or in some cases twice at the beginning of the drive it is typically okay the rest of the drive.

Filed Sep 28, 2024 · Engine · CA

It has the same engine failure problem as the recall for 2022 and 2023 vehicles. The engine just stalls when it wants with no check engine light or error codes. Then restarts just fine when put in park. Lexus repair could not even find a issue. Have documents to prove it.