general problems of the 2006 Lexus Rx400h

Five problems related to engine and engine cooling have been reported for the 2006 Lexus Rx400h. The most recently reported issues are listed below.

1 Engine And Engine Cooling problem

Failure Date: 11/18/2018

Check hybrid system lights came on and the vehicle failed to start. This is the second occurrence. The inverter was replaced following the first occurrence in 2011. The vehicle was moving during the first occurrence.

2 Engine And Engine Cooling problem

Failure Date: 07/31/2018

The hybrid battery failed, power inverter, locking up power steering and my car was not able to operate on the road. I was quoted 7500$ cost. I have read of similar problems occurring. I would like help repairing from Lexus.

3 Engine And Engine Cooling problem

Failure Date: 05/16/2017

Driving on the interstate between 60-70 mph, the car completely shut-off. Lost all power and "check hybrid system" lights came on. Was able to restart the vehicle. Notified and took the vehicle to local Lexus dealer who checked the vehicle and said they can't find anything wrong with it and returned it to me. Same problem again a week later with same results. Lexus continues to say they can't find anything wrong with the vehicle nor can they find any recalls. But car continues to shut down at least once a month.

4 Engine And Engine Cooling problem

Failure Date: 07/28/2013

Dear sirs! the car was bought Feb 2009 from ira Lexus in denver MA with 17k miles on it. Now the car has 65k mi. It did die on the street about two weeks ago mechanics did check the car and did write a report, that the problem is due to the manufacturing issue which was a reason for the recall. I have recall info and report, can email. I did not receive the recall notice. The Lexus dealer says that the car should be fixed by them, but need a Lexus approval. The cost is about $10k I did contact Lexus and received a call that they won¿t pay for the repairs. The problem in the car ¿ inverter went bad and the reason for that ¿ a small part inside, which was on the recall. Lexus say that the recall was for a small part and they do not want to pay for the whole thing. And I believe that since I did not receive the recall letters - they should fix the car.

5 Engine And Engine Cooling problem

Failure Date: 04/01/2012

Traveling down the interstate between 75-80 mph, the car completely shut-off. Lost all power and "check hybrid system" lights came on. Was not able to restart the vehicle. It turns out that the inverter on this car was recalled in June 2011 and I was not notified. I took my car in for service in November of 2011 at the dealership where it was purchased, and they did nothing to resolve the problem. Saline kirkland at Lexus of mobile (service manager) said she found out about the problem one week ago.


Other Engine And Engine Cooling related problems of the 2006 Lexus Rx400h



Rx400h Service Bulletins
Rx400h Safety Recalls
Rx400h Defect Investigations