Check a vehicle VIN check Latest recalls Latest complaints Common problems Rankings Compare vehicles Recall roundups All makes Guides Share your experience
Theme

Engine & cooling

Lexus RX 350 Engine problems by year

3 complaints filed with NHTSA about the Lexus RX 350's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20263100

Latest RX 350 engine complaints

2026 Lexus RX 350Acceleration & cruise controlEngine & cooling

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.

Filed Incident Vehicle speed control · EngineNHTSA 11775699
2026 Lexus RX 350Transmission & drivetrainElectrical systemEngine & cooling

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...

Read the full complaint

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.

Filed Incident Power train · Electrical system · EngineNHTSA 11773204
2026 Lexus RX 350Electrical systemEngine & coolingFuel systemCrash

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...

Read the full complaint

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 With Tree Trunk * The vehicle continued uphill and shortly thereafter struck a tree trunk. * After the impact, the vehicle changed direction toward the right. * The vehicle continued moving at high speed after the impact. 5. Attempt to Stop Vehicle * After the vehicle changed direction and continued moving, I recognized the need to stop the vehicle before it reached a concrete structure with a Jewel-Osco sign. * I applied the brake pedal again. * At this point, the brake responded and the vehicle stopped. 6. Resulting Damage * The collision caused significant damage to the vehicle, including damage to the driver's side. * No warning lights or dashboard alerts appeared during the event.

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 11750381

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

Owners helping owners

Know before you drive.

Every experience you share - good or bad - shows on that vehicle's page and helps the next owner and buyer. Two minutes, anonymous.

Share your experience