general problems of the 2007 Lexus Rx400h

While driving from florida to fairfax, CA the vehicle stalled ~10 time unexpectedly with loss of power brakes and power steering, making a very dangerous situation. The "check hybrid system and check vsc system" showed on the dash. Clearing the codes restarted the vehicle. I stopped in denver, CO at kuni Lexus of greenwood village, whom road tested the vehicle for 30 miles but were unable to duplicate the fault. Obdii dtc p3105 was read on my scanner before arrival. I have researched the failure more and found out on Lexus tis system; on 01/15/2014, Lexus of miami claimed to have completed safety recall 13v396000 (intelligent power module (ipm) solder failures) but they only diagnosed some other problems and did not have time to perform this recall, neither did the inform me of it! I stopped at Lexus of tacoma at fife, wa and they denied diagnosis due to minor body damage on the rear quarter panel where they claim water came in. This is not the location of water intrusion! the location is due to body seam cracks above that plain of the quarter panel damage, near the rear gate struts and hinges (see l-sb-0019-09), but they wouldn't look at that either and told me to go to their sublet body shop where the manager agreed with me that the water leaks into the high voltage battery pack/controller area was from the l-sb-0019-09 and not the quarter panel area. I sealed up all possible water intrusion areas and disassembled the hv battery pack area to see how much and where the water was (many photos) and dry it out with several days of sunshine here in fairfax, CA. I informed Lexus corp about the relative recall/sb and they denied to complete it! the vehicle is back together and I am waiting on your response. I can be reached by email (I don't carry a cell phone) thank you!.

Accumulator leak. Driving. Effects braking system.

The contact owns a 2007 Lexus Rx400h. The contact stated that while driving at 40 mph, the brake pedal was depressed and felt abnormally soft. The contact stated that there was no warning light illuminated. The vehicle was taken to harvey Lexus located at 2550 28th st se, grand rapids, mi 49512, (616) 949-1010, to be diagnosed. The contact was informed that the computer control module failed and needed to be repaired. The contact stated that the vehicle was repaired. The vehicle was included in NHTSA campaign number: 13v396000 (electrical system). The manufacturer was not notified of the failure with the vehicle. The approximate failure mileage was 110,000.

I was approaching a stop sign at about 10 miles per hour and stepped on the brake pedal to stop. The car braked normally at first, then the car either free-wheeled or lurched forward for about half a second, but as I continued to press on the brake the car came to a stop but a little further than I wanted. I have noticed this about 10 times in the last 6 months but have not had any accidents. I finally contacted my dealer about the problem and he said that this was normal operation of the brakes on this model. He said that what I was sensing was the interval when the car switches between regenerative brakes and hydraulic brakes. He said that there is an order to fix the hs 2010 models so that the interval is minimized or eliminated but none for my model car.

I have a 2007 Lexus Rx400h that I purchased new in December 2006. Ever since first taking ownership, I have noticed at speeds less than about 25 mph that the regenerative braking sometimes releases the brakes without warning and the hydraulic brakes do not immediately engage to take up the desired braking function. The resulting feeling is one of lost brake control and a slight surge forward by the vehicle. I first reported this to the dealer at the 10,000 mile service check (09-18-2007) and was told that the braking system was performing normally. "cannot verify customer concern. " I have several times since asked the Lexus dealer about this problem that I continue to experience, and each time have been told that my brake system is operating normally. The dealer has said that it must be that I'm not used to the regenerative braking system action, despite the fact that I've now driven the car over 55,000 miles. I've also been told by the dealer that they've had no other complaints of this type with my model vehicle. I've known all along that I wasn't imaging this problem and after all the publicity regarding the prius brake and accelerator problems I realize that Toyota / Lexus has been ignoring this issue.

I recently purchased a used 2007 Lexus RX 440h with 22,000 miles on the odometer. Immediately (and several weeks prior to learning of potential Toyota and Lexus acceleration and braking issues) I noted that when braking from a low speed, say 20 mph at a stop sign, the brakes would initially take hold in a normal manner and then, for a very brief time, it felt as if the car was sliding, then the brakes would continue to take hold and bring the car to a normal stop. Typically this has occurred on a snowy or icy surface, but I have not detected the abs kicking in at any time. The abs has operated normally under other circumstances. At first I attributed this to the hybrid technology and regenerative braking system on the car. However, it now sounds exactly like the experience those driving prius and Lexus 250h automobiles have described that has been reported in the media. This braking anomaly occurs exactly the same way every time it occurs and it occurs frequently. So far I have owned the vehicle for less than one month.

May 2008: purchased 2007 Lexus 400h SUV. Car great except brakes. Something was odd. June 2008: sent the car to the dealership to check brakes. They insisted everything was fine. My discomfort was due to my inexperience with the regenerative braking system. I tried to get used to it. It seemed to get worse over time. At around 10 mph, the braking momentum changes suddenly. The car floats briefly then surges a little. It was unclear if it happened all the time, or only with gradual braking, or only when stopping from a slow speed. July 22, 2009: accident. Brakes suddenly stopped working as I turned the car into a parking space behind another car. I panicked when the car didn't stop at the expected point. I slammed on the brakes, my foot slipped and I hit the accelerator. I hit the car in front of me sending it toward three other cars. This would not have happened if the brakes worked properly. August 2009 -reported accident to the dealership. I was told to talk with Lexus headquarters in California. They arranged for a field agent to go to the local dealership. September 30, 2009 - car at the dealership for everyones review. Afterwards, told by phone that no problems were identified and the car was safe. I wasn't comfortable with that decision. On November 27, 2009, I took the car in again, insisting there was a problem. I drove with the service manager. He admitted he felt the floating/slight surge. He claimed it was the moment between the end of the "regenerative" braking system and when the conventional braking system kicked in. Not happy with the explanation. The floating/surge means you're not quite sure when you will stop. On January 6, 2010, I received a letter from Lexus. Their field technician inspected my car, found nothing wrong and the accident could not be related. I do not agree. Now I hear about Lexus hybrid brakes problems and I assume its what I've complained about all along.

Brake fade during slow and steady application on Lexus 400h 2007 dealer has not responded well to this complaint this is an ongoing problem.

While driving at low to moderate speeds in my Lexus Rx400h, there is a hesitation in the brakes. It seems to occur in the change over between hybrid regenerative braking and normal hydraulic braking. I rear-ended a car in stop and go traffic due to this issue. I reported this to my local Lexus dealer on two occasions, but they found no problems.

I have a 2007 Lexus 400h hybrid. I was coming up behind a car coming off the interstate. The car ahead of me slammed on their brakes. I slammed on my brakes. The brakes worked at first then they let up and then kicked in again, but that delay in between caused a lunge into the car ahead of me causing an accident. I have been complaining to Lexus about this issue for a year. They say my brakes are fine, but now that I see all of these recalls I realize they may be trying to cover up the issues with their hybrid brakes. I think that all of their hybrid brake systems need to be examined for this delay between the two brake systems.

Inconsistent brake feel during slow and steady application of brakes when going over a bump in the road. This scares the heck out of me.