1. none, luckily I was accelerating from a dead stop when the part seemed to pop out of gear. The car seemed to be running not quite as smooth 2 weeks prior so I had it checked @ the Lexus dealership. They found nothing wrong. If this part were to malfunction @ high speed I may not be able to issue this complaint. 2. once, I will request old part if desired but expect Lexus to try to keep the part. Will NHTSA have it picked up from the dealership? 3. car is in repair shop now. Nothing done yet. Hybrid inverter w/ converter quoted to be replaced with a different part #G92A0-48090, indicating to me that the manufacturer knows that the original part is defective.

- Cranberry Twp., PA, USA

The contact owns a 2006 Lexus Rx400H. The contact was driving approximately 30 mph and proceeding through an intersection when the vehicle stalled without warning. The contact was unable to restart the vehicle and it was towed to the dealer. The dealer diagnosed the failure as being the hybrid inverter battery which caused the vehicle to stall. The vehicle was repaired. The VIN was unavailable. The failure mileage was approximately 79,000.

- Laporte, TX, USA

The contact owns a 2006 Lexus RX400 hybrid (na). While driving approximately 70 mph, the power system shut down suddenly with no power brakes or power steering. The vehicle was towed to an authorized dealer who stated that a new hybrid system needed to be installed. The vehicle was repaired. The failure mileage was approximately 70,000.

- Atlanta, GA, USA

Dead starter battery - 1. since the vehicle was new (we are original owners) the starter battery would be dead if we did not drive the car for 4 or more days (obviously not being able to take it anywhere where it would sit without a charger nearby like to an airport). Lexus has replaced the battery 3 times but just 1 month ago replaced it again and now after a 1 week trip to cancun battery was dead again. Lexus pretends to not understand the problem but many people complain of this same problem that is often much worse where the car shuts down when driving. Many people that have had this same series of problems ultimately need to have the inverter replaced which is a $9K plus part (so far it seems when its proved to Lexus they do this at no charge -- but mine is now out of warranty). 2. problem always occurs if the car sits without being started for more than 4 days. 3. they have replaced battery 3 times. We are afraid that our problem will escalate and my wife will be driving with our 8 & 10 year old children and the battery system will fail causing the entire car to shut down and she is not strong enough to steer to safety when brake and steering are not working. It is unfair for us to potentially have to sell the vehicle at a huge loss to avoid this potential issue (and then someone else will have the problem).

- Plano, TX, USA

The contact owns a 2006 Lexus Rx400H. The contact stated that while driving 70 mph, the vehicle stalled but he was able to coast it to a stop on an exit ramp. The hybrid system light illuminated after the failure. The vehicle was towed to an authorized dealer who stated that the hybrid battery was the cause of failure. The contact planned to have the vehicle repaired. The VIN was unavailable. The current and failure mileages were approximately 70,000.

- Atlanta, GA, USA

While driving a 2006 Lexus 400H the engine, power steering, lights, everything! just quit and the car had to be maneuvered off the road with no power what so ever. It was very dangerous. The car's inverter had failed. This car has been maintained and serviced by the dealer for its entire life and has had no indication of a problem prior to the failure. The new inverter costs $8300! we will probably sell the car for salvage as its way too much money and who knows what will go out next! apparently this failure has occurred in other hybrids by Lexus and Toyota. Its a miracle that there was not an accident when the engine failed.

- Austin, TX, USA

The contact owns a 2006 Lexus Rx400H. While driving approximately 75 mph the vehicle stalled. The vehicle would not restart. The vehicle was towed to an authorized dealer where the contact was informed that the inverter failed which also caused the computer and engine to fail. The inverter was replaced by an authorized dealer. The failure did not recur. The failure mileage was 60,000 and the current mileage was unknown. Updated 10/15/10 bf updated 10/19/10

- Fairport, NY, USA

I read on the edmunds site for Lexus 400H, many owners are complaining about the failure of the electric inverter on the model year 2006. I own this car and I have not experienced any problem. I believe your Agency should be looking into this situation as it appears that owners are reporting that Lexus is not admitting to this situation. One owner reports that Lexus knew about the problem in 2006 and changed to a different inverter starting with VIN #'s greater than 60036526. My car's vi # falls below that cutoff and I am very worried. When the inverter fails, all power to the vehicle fails and the driver is in serious trouble. Thank you for your concern for my safety while driving. Updated 06/02/11

- Lake Worth, FL, USA

The contact owns a 2006 Toyota Lexus Rx400H hybrid. While contact was driving 30 mph all of the warning lights in the vehicle were illuminated. An alarm warning light was also illuminated on the instrument panel. She was able to drive the vehicle onto the emergency lane. The vehicle was towed to an authorized Lexus dealer who performed a diagnostic test. The mechanic stated that the skid control was malfunctioning and needed to be replaced. The steering wheel also became difficult to control due to the computer which was also repaired. The vehicle was repaired and it cost her a total of $2,106.19. Nothing was covered under warranty. The Toyota manufacturer was not notified. The contact was concerned about the safety risk. The failure mileage was 50,000 and the current mileage was 56,560.

- Lookout Mountain, GA, USA

The contact owns a 2006 Lexus Rx400H. While driving 70 miles per hour the warning lights on the dashboard began to flash. The contact stated that the vehicle also lost power while driving. The contact was advised that the inverter was defective and that she would have to pay $700 to have the part installed. The failure and current miles were 140,000.

- Tres Pinos, CA, USA

While driving on highway, car shut down totally.

- Stockton, NJ, USA