2016 Lexus RX

I am reporting a safety issue with a 2016 Lexus RX350, VIN [XXX], with about 60,000 miles. The vehicle is registered in [XXX] and was being driven to [XXX] when it suddenly overheated on XXX near [XXX]. The warning lights appeared while the vehicle was traveling at highway speed. The driver immediately took the first available exit within about one minute. The failed system appears to be the engine cooling system, specifically the water pump. The vehicle is currently at Kendall Lexus of Eugene and should be available for inspection. This failure created a safety risk because it happened suddenly on a major highway. The driver had to exit quickly and the vehicle became disabled far from home. A sudden coolant-loss or overheating event at highway speed can leave drivers stranded in unsafe locations with very little warning. Kendall Lexus of Eugene inspected the vehicle. Their Service Manager stated in writing that the technician found a leaking water pump, misfires in every cylinder, and a 95% leak in cylinder #6 through the exhaust valves. She stated that the water pump failure caused the vehicle to lose coolant, overheat, and suffer internal engine damage requiring engine replacement. Lexus Customer Relations has been notified under Case #XXX. Whether Lexus corporate has physically inspected the vehicle is unknown. Before the incident, there were no known warning signs. The warning lights appeared five hours into the road trip when the overheating occurred. After exiting, the

*Driver-side entry failure = primary access point compromised * Could trap occupants if internal handle fails or after an accident * Emergency responders rely on driver-side access first * This is not normal wear and tear—it’s a safety-related failure.

The electronic screen on dashboard that displays map, HVAC, etc. turns pink then black and disappears for several minutes. One then has no control over the various functions displayed on the screen. I've done a hard reset by disconnecting the battery for several minutes...to no avail. Thank you.

The contact owns a 2016 Lexus RX 350. While the contact was inside the building where she worked, the hazard lights were flashing unintendedly. When the contact arrived at the residence, the hazard lights were flashing again. The vehicle was not diagnosed or repaired. Additionally, the contact stated that the air bag warning light was illuminated. The contact stated that on a separate occasion, there was an abnormal vibrating sound coming from underneath the brake pedal. No warning lights were illuminated. The manufacturer was not made aware of the failure. The failure mileage was approximately 98,000.

Both sides of the black wheel guides have popped off causing damage to the front bumper and wheel fenders.

As I was driving southbound on I five in the state of Washington in Stanwood area 8:00 AM my sunroof exploded, causing me to swerve into other lanes and a distraction for other drivers There were no warnings. The sunroof was in a close position, not being used. The vehicle went into repair today being August 1. We did take pictures. Had there been cars directly on either side of me accident would have occurred.

I was driving and pressed the button to close the sunshade on the panoramic sunroof when I heard this like a grinding noise. The cloth sunshade stopped moving. Then I heard a pop noise, and the sunshade came down, and it hit me more on the back of the neck. Then I heard something fall on the floor behind me in the back seat area. I couldn't pull over right away, stopped at a store, and there was a black, plastic and metal piece that was on the floor in back. The sunshade itself was partly hanging off the ceiling where it came from. It didn't hurt but of course it startled me. This happened on Friday going to work 7/18/2025. I haven't used the sunroof for a while because it has been too hot but Friday I wanted some natural air, and opened it up. Researching I see that it is supposed to be all one piece, and everything which includes the entire panoramic sunroof to be replaced which is close to $3,000. I found online that a lot of people have the same problem for years 16-22 on the RX. I found out where the dealers are telling people excessive heat melts the glue holding these adapters in place, and it eventually give way and break. Most people including me park outside, I don't have a garage, and it's summer, this is defective, and it should be covered my Lexus. Since it just happened yesterday, the vehicle wasn't inspected by nobody, there were no warning signs that this was happening either. The safety issue is when it hit me on the back of the neck while I was driving. Than

Timing Cover gasket leak. Apparently this is very common problem with 2016 Lexus RX 350 due to a bad design by Lexus. Lexus is quoting ~7000 to fix

I am formally submitting a vehicle defect complaint regarding my 2016 Lexus RX 450h, which is experiencing premature and extensive paint degradation, including clear coat peeling, flaking, and fading. This issue is not due to environmental exposure or neglect, but rather a clear indicator of a factory defect related to substandard paint application and adhesion failure. This concern directly aligns with known and previously acknowledged factory paint failures affecting both Lexus and Toyota vehicles. Numerous Customer Support Programs (CSPs) and Technical Service Bulletins (TSBs) have been launched by Toyota Motor Corporation to address: •Faulty clear coat adhesion •Improper surface preparation during manufacturing •Delamination and premature degradation of factory-applied paint, particularly in white pearl and other finishes Despite wide acknowledgment of these issues in prior campaigns (such as CSP ZKC and others involving Lexus RX, ES, and LS models), my vehicle’s VIN was not included—despite exhibiting identical symptoms. Given the extensive documentation of these defects, I am requesting the following: 1.A formal investigation into the paint failure affecting my Lexus RX 450h. 2.Written acknowledgment of this known issue and confirmation whether this VIN has been or should be included in past or upcoming CSPs. 3.Immediate corrective action including paint restoration or full vehicle repaint at no cost. 4.Clarification on why Lexus has failed to expand prior paint-related

The inside driver door handle broken.

Car has a continuous gas smell after start up. When a/c or heat is turned off the car cabin smells of gaslione. I have taken to the car to lexus dealership repeatedly and have been advice car operates as intended. There is also a hissing noise coming from the rear driverside tire area near the gas tank.

Upon parking after 20-mile drive, severe leak of transmission oil from transmission oil cooler area, no warning messages/lights or fault codes present. No evidence of leak at starting point for drive, was sudden failure internal to transmission cooler with no evidence of impact/vibration damage or corrosion; failure was perhaps at welds of fins to tubing. Leaking oil creates fire and slip hazard, lack of any kind of warning to driver would have allowed continued driving until transmission failed except for luck that this was short trip. Vehicle has never been damaged in a crash, has been carefully inspected and maintained since purchase new. This is not a wear item and should never fail without external damage or corrosion, certainly not at 45,000 miles. Difficult to believe that this anything other than a manufacturing defect on this early production (VIN ending 002034) vehicle. Repaired by Lexus dealer with Lexus covering half of cost as “goodwill” (cost to me at ~$1,050 incl. towing), although dealer attempted to return vehicle without having reinstalled air duct and lower shroud.

The hood latch and cable malfunctioned three times in one year. Once in January 2024 (I replaced the latch); once in July 2024 (the dealer recommended to eventually replace the cable, but was able to fix it); and most recently on [XXX] (the dealer identified the cable was faulty and needed to be replaced). The hood would close but not all the way and the hood release had no tension. There was prior warning or symptoms prior to the hood lock failure. All the records for this is with the service department of Pohanka Lexus in Chantilly, VA. I attached the most recent service visit. I took it to the Lexus dealer service center each time. I am getting it fixed this weekend by another service shop (because Lexus charges too much). This was extremely dangerous because if the hood is not secure, it could open at any time while driving and cause an accident, especially at high speeds. There is the potential that if the hood does not lock when closed after it opens, that it could possibly fly open while the car is in motion. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Good Afternoon, This is in relation to Customer Support Program (20LE02) - Rear Inside Door Handle May Become Inoperative. The Rear right inside door handle of my Lexus 350 became inoperative recently, but I never received a notice regarding 20LE02.

Timing chain cover oil leak is a wellknown issue for Lexus/Toyota V6 engine for more than a decade. The company is still reluctant to provide a long term solution. This 2016 Lexus RX350 F Sport was first discovered Timing Cover oil leak at 49166 miles and was resealed on [XXX] 2021. One year later, on [XXX] 2022, valve cover gasket oil leak was found at 57608 miles. Two months later, on [XXX], 2022, Timing Cover oil leak was discovered again at 58821 miles. Then two months later, on [XXX] 2022, oil leak was discovered again at 59864 miles. [All above was repaired by Thompson Lexus in Doylestown, PA under Lexus Powertrain Warranty.] Now, two years and 15000 miles later, the car is currently developing the same oil leak again at 76500 miles. The car is out of warranty, the repair will cost $7000. Toyota/Lexus should provide a longterm sustainable solution for this problem instead of advising repair shop to merely reseal the cover, which will eventually leak again. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Lexus RX350 has Timing Cover Gasket issue. My car is manufactured in 2016 and had only 59,757 miles on it but late last year the dealership discovered the leak after an oil change. The cost for repair is estimated $6500+ I am an engineer and researched the issue. I noticed that many people reported on Timing Cover Gasket issue in RX350 cars. I even learned that the next design flaw in RX350 is the water pump. I contacted the Lexus company and reported on the issue. They offered me $2000 discount. This means they are aware of the issue. I believe Lexus shall fix this issue since it can turn into a safety hazard. If customers don't notice the leak, or leave engine oil leaks unchecked, the engine could seize up, or even catch on fire. Please make Lexus to recall Lexus RX350 Timing Cover Gasket, (and water pump). Thanks and be safe, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Loss of power brake assist. The Lexus dealer diagnosed a failed vacuum pump. This is common with the 2016/2017 RX 350's. Lexus has admitted a manufacturing problem with the pumps and has a service bulletin (L-SB-0010-18) and a safety recall on the 2017's (JLD J2D). The recall should be extended to the 2016's. There are tons of people posting on the internet about failed vacuum pumps and resultant safety issues.

The contact owns a 2016 Lexus RX350. The contact stated while driving at an undisclosed speed, the moon roof independently fractured. The contact stated no object had struck the moon roof to cause the fracture. The vehicle was taken to the dealer and the contact was informed that the moon roof needed to be replaced. The vehicle was being repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 37,000.

There is oil leak from timing belt casing. Only have 71000 miles on the vehicle.

The vehicle sustained water damage due to Hurricane Ida in September 2021 and was repaired at the dealership. In February 2023, the battery needed replacing for a third time since then and I was told that the front and rear carpeting was soaking wet, again, and it was due to the moonroof rails being clogged. The vehicle is currently at the dealership being assessed and repairs should be borne by the dealer/manufacturer; NOT THE CONSUMER. If this is specific to my vehicle only, then I have a lemon. If it has happened to others, then it should be recalled.