BritRom

Hi there, Thank you for your reply. I believe I found the problem - my RX400H is currently at the dealership for a recall. Copying and pasting below, a post to the general forum, that I hope is a help to anyone else who has a used 400h and has not checked into this! Thanks again. ---------------------------- THERE HAVE BEEN TWO MAJOR RECALLS RELATED TO THIS PROBLEM. The first in 2011, the second in 2013. Both are related to the inverter module inside the hybrid system. IT IS A SERIOUS PROBLEM! So, if you are like me and have an older Lexus hybrid, I advise you to call your Lexus dealership REGARDLESS OF WHETHER YOU ARE HAVING THIS ENGINE DYING/SYSTEM FAILURE PROBLEM OR NOT! Ask if your vehicle has ever had this recall done. All they need is your VIN number. This recall DOES NOT EXPIRE!!! Take a look at this link and it explains everything in more detail: https://www.cars.com/research/lexus-rx_400h-2006/recalls/ I hope this is a help to someone!! God bless you and stay safe.

To anyone having this problem...... Engine & whole system including power steering DIES AS YOU ARE DRIVING! There is no pattern, it doesn't matter what speed you're doing etc. Dash lights up like a Christmas tree, "check engine light," "Check Hybrid System" come on and all kinds of other problems. You may have tried replacing the 12v battery - this helps reset the system but does NOT solve the problem. You may have tried the simple reset on the dash display hoping that will do something - it does NOT solve the problem. This is a dangerous situation! BUT, you may be driving a car that has never had this recall done. THERE HAVE BEEN TWO MAJOR RECALLS RELATED TO THIS PROBLEM. The first in 2011, the second in 2013. Both are related to the inverter module inside the hybrid system. IT IS A SERIOUS PROBLEM! So, if you are like me and have an older Lexus hybrid, I advise you to call your Lexus dealership REGARDLESS OF WHETHER YOU ARE HAVING THIS ENGINE DYING/SYSTEM FAILURE PROBLEM OR NOT! Ask if your vehicle has ever had this recall done. All they need is your VIN number. This recall DOES NOT EXPIRE!!! Take a look at this link and it explains everything in more detail: https://www.cars.com/research/lexus-rx_400h-2006/recalls/ I hope this is a help to someone!! God bless you and stay safe.

This recall DOES NOT EXPIRE!!! To anyone having this problem...... Engine & whole system including power steering DIES AS YOU ARE DRIVING! There is no pattern, it doesn't matter what speed you're doing etc. Dash lights up like a Christmas tree, "check engine light," "Check Hybrid System" come on and all kinds of other problems. You may have tried replacing the 12v battery - this helps reset the system but does NOT solve the problem. You may have tried the simple reset on the dash display hoping that will do something - it does NOT solve the problem. This is a dangerous situation! BUT, you may be driving a car that has never had this recall done. THERE HAVE BEEN TWO MAJOR RECALLS RELATED TO THIS PROBLEM. The first in 2011, the second in 2013. Both are related to the inverter module inside the hybrid system. IT IS A SERIOUS PROBLEM! So, if you are like me and have an older Lexus hybrid, I advise you to call your Lexus dealership REGARDLESS OF WHETHER YOU ARE HAVING THIS ENGINE DYING/SYSTEM FAILURE PROBLEM OR NOT! Ask if your vehicle has ever had this recall done. All they need is your VIN number. Take a look at this link and it explains everything in more detail: https://www.cars.com/research/lexus-rx_400h-2006/recalls/ I hope this is a help to someone!! God bless you and stay safe.

Any help gratefully received... I have a 2006 RX400h. 130,000 miles. 4 months ago, I was running 72mph on the interstate and the whole car shut down - shifter, engine, lost steering, EVERYTHING! Read several reviews, I changed the regular battery under the hood, everything re-set and all was well for 5,000 miles. Now it has just happened to me again twice within 2 weeks. The new battery is only 4 months old. I guess something could be draining the 12 volt battery, but is it possible that the hybrid battery could already be bad? What codes do I need to be looking for? Don't want to be taken for $1,000s of dollars needlessly... Any help or advice gratefully received. Thank you!

Hello! I have a 2006 RX400h. Need to change the brake light switch. Looks like I have to remove the plastic air duct to get anywhere near it, but can’t see beyond that. Any advice gratefully received! Thanks sincerely!

Hi, I have a '06 RX400h. I have the same problem - my dash is cracked, falling apart in places. I believe there was a recall by Lexus during this run of vehicles for substandard material for the dash. Unfortunately, if I also understood right, the recall ended in 2017. HOWEVER, I have found a couple of options - it depends if you're satisfied with a dash cover, or a fitted dash-skin. I just ordered a brushed suede dash cover (link below). I have not fitted it yet, but will send a picture if you are interested. Let me know if you want. I also found a skin for $170 (link also below). I cannot comment on the quality - I do not know. But maybe this will help you. Dash Cover: https://www.dashdesigns.com/i-31635433-2006-lexus-rx400h-dash-cover.html Dash Skin: https://dashskin.com/amfinder?find=lexus-rx350-2007-1068&sid=b2vy6jR9RB Take care & God bless, BritRom

Hello! Any help thankfully received! I have a 2006 RX400h. Need to change the brake light switch, looks like I need to remove the plastic air duct to get anywhere near it, but can’t see beyond that. Could you help me with how to get to it please? Thanks sincerely!