2026 Lexus RX 350 problems

“While driving my 2026 Lexus RX350h, the vehicle suddenly lost propulsion and would not respond to the accelerator. After coming to a stop, pressing the gas pedal did nothing. I had to shift to Park, press the brake, and press the Start button to get the vehicle moving again. A short time later, while making a right turn, the vehicle lost power again while still moving, forcing me to repeat the Park–Brake–Start sequence in the middle of the turn. This is a serious safety issue because the hybrid system appears to shut down unexpectedly, causing loss of propulsion in traffic. The vehicle was towed to the dealer, who stated the battery was “good,” but no cause was identified. This needs investigation because the vehicle can unexpectedly lose power and require a restart while driving.”

“On two occasions, while coasting prior to depressing the brake to come to a stop, the engine spontaneously reved causing the vehicle to lurch forward. At which time I had to dress the brake to keep control of the vehicle.”

“First incident. 71 mph, 101 degrees out traveling along a straight highway, I hit the seat cooler button and when I did, my car lost power. I could not get any response when I hit the accelerator. I tried several times. This was on XXX with around 500 miles on the car in the odometer. I had it less than a week. Second incident on XXX 25 mph, 105 degrees outside with 1300 miles in the odometer, I again, lost power and was unable to accelerate. I was on a windy road that required the use of both hands on the wheel. With this incident I lost the AC in the cabin. I had to pull over both times and turn off my vehicle and turn back on. There were no lights, or warnings or beeps letting me know that my car was going to lose or lost power. I took the vehicle to Crown Lexus in Ontario, they had it for 7 days and they could not find anything wrong with it. When they ran a diagnostic on it, there were no codes other than they said I put the car in neutral while driving. Which did not happen. My husband was with me both times. I then had the car towed to Lexus of [XXX] and we went for a test drive, as they wanted to see how I drive to rule out human error and to see if the…”

“The factory-installed front spindle grille and bumper assembly on this brand-new 2026 Lexus RX 350 suffered severe thermal material failure, resulting in extensive warping, bubbling, and physical melting under normal, predictable outdoor ambient daylight parking conditions. This thermal deformation poses an immediate safety hazard because the deformed exterior structure directly houses the vehicle’s critical front-facing Advanced Driver Assistance Systems (ADAS). This includes the pre-collision safety radar sensors, pedestrian detection cameras, and proximity sensors located right behind the front Lexus emblem and grille assembly. The physical distortion of the plastic mounting housing can cause sensor misalignment, resulting in unexpected automatic emergency braking, failure of the pre-collision warning systems, or sudden blind-spot radar failure while operating the vehicle at highway speeds. Lexus Corporate (Case #260917000986) officially inspected the vehicle and explicitly denied all warranty and goodwill safety repairs, formally stating the vehicle's body components are melting due to a "solar event" concentration. Furthermore, the authorized Lexus…”

“Technical Incident Timeline Suspected Unintended Acceleration Event 2026 Lexus RX 350h Premium+ (Approximately 96 Miles) Vehicle: 2026 Lexus RX 350h Premium+ Purchase Date: July 10, 2026 Dealer: Woodfield Lexus Incident Date: July 12, 2026 Approximate Time: 11:30 AM Vehicle Mileage at Incident: Approximately 96 miles ⸻ Event Sequence 1. Vehicle Startup * I entered the vehicle and started the vehicle normally. * The vehicle was in Park (P) at startup. * My right foot was on the brake pedal, as required to start the vehicle. * The accelerator pedal was not intentionally pressed. 2. Immediate Vehicle Behavior After Startup * Immediately after startup, the vehicle produced an unusually loud powertrain noise similar to a motorcycle engine. * The vehicle unexpectedly moved forward with strong acceleration without my intended input. * The acceleration was sudden and unexpected. 3. Loss of Vehicle Control * The vehicle traveled uphill at high speed. * The event occurred so quickly that I did not have sufficient time to react or take corrective action. * The vehicle became difficult to control during this period. * The front wheels climbed up the hill first. 4. Impact…”