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Hybrid TechnologyUnique topics related to the 2010 - 2015 RX450H model hybrid drivetrain and other features/options found only on the RX450H. Please use the main forum for discussion about shared components with other third generation RX models.
Somehow I might have guessed that prices for this kind of thing have not gone down .
You can get your own "code" reader from a variety of online sources. Not particularly expensive (under $50). Then you can keep track of your own codes. The problem with dealers is they have figured how monetize the act of enslaving you legally, and they do it. Just do what you can, to NOT play into their diabolical plan for world domination.
But I digress.
One thing about aftermarket battery professionals, (and I mean professionals, not fly-by-night junkyard scavengers), because of this BS with the dealer always starting with saying you need a new battery, well, the aftermarket providers want to make dang sure you really do actually need a new battery, not some other stupid dealer **** stuff like "Hybrid System Failure" which as we know from reading this thread above, can mean just about anything, and probably does not mean you need a new battery. These aftermarket battery professionals don't want to sell you a new battery if it does not fix your problem. Otherwise, you'll drive the car and it will fail and you will blame the aftermarket battery professional, then you want your money back and all that. They are not interested in this scenario. So what they do is require you to diagnose your car, and they require that the diagnosis reveals the exact code for "Hybrid Battery Failure." That is different from "Hybrid System Failure."
Now you got me soliloquizing. But you get the point. I learned all this by actually going through the process. Those folks at Green Bean Battery are the real deal and I recommend them. Did I mention they bring it out to your car and do the swap at your place at a time that is convenient for you? You got quoted $7750 at the dealer. I paid Green Bean $2750. No I don't work for them. I am just a satisfied customer.
FWIW I did not get a breakdown cell-by-cell of the condition of my failed battery, and I do not think getting that data was critical. I didn't know you could even get it, short of testing each cell yourself.
I've been making some calls to hybrid "specialists" around my area and not getting a very, shall we say, reliable answers. Two shops passed on the repair saying that they have enough Priuses to work on. Anyone know a good hybrid battery shop in greater Los Angeles area?
Try this script: At the end of each question like, if they say no, ask if they know any shop that can help you.
Hi I have 20?? RX 450 H with the displayed message ".....". Do you guys repair this problem?
Do you replace faulty cells or replace the whole battery?
Would I need to take the vehicle to the dealer for any calibration work after your repair is done?
What sort of warranty do you provide?
When or how soon can you work on the vehicle? Estimated time of repair [I have to make arrangements to have it delivered to you etc]
What is the estimated cost of repairs .. flat labor + cost per cell. <= Shop may choose to break it down or not.
The sensor related to this error is built into the motor generator, so there is no replacing the sensor, only the entire motor. Hopefully the dealer would have cleared the error to see if it came back, and was not just an intermittent glitch. From what I understand, the purpose of this sensor is to measure the temp of the transaxle fluid and if too hot, will limit the load on the motor to prevent overheating. That said, if the code is persistent, maybe a shot in the dark would be to change out the fluid. It would be a very long shot but a lot cheaper.
In the long run, if nothing works to fix the sensor, and the vehicle seems to continue to run normally (specifically the traction battery stays charged the power is normal), I guess the choice is run it and see if anything changes and hope nothing else bad happens. Just me though, $6800 is a lot of money so I'd try it, but your call.
On my 2011 RX450h, I started seeing, intermittently, the "Check Hybrid System" warning light about a month ago. Error code PA0AA6-526. This points to the hybrid transaxle assembly, which cannot be serviced. Replacement with a new transaxle assembly is not economically practical, and at some point the hybrid battery would also need to be replaced. It still works fine, but the car is 12 years old with 225,000 miles. The warning light resets itself within a day or two each time. Fuel consumption and hybrid battery energy displays continue to show normal operation. Last week, for the first and only time. lots of warning lights appeared on trying to start the car--Check Hybrid System, Brake System, Power Steering System, Check Engine, and maybe some others. The car started normally (A/C running normally, etc.), but would not move in forward or reverse. No power steering, and brakes spongy. Brand new Lexus 12v battery. had it towed to the dealer. Same error code. But this morning when I picked the car up at the dealer, it started and ran normally. Any ideas??
There can be multiple issues being flagged, but before acting on any one of them, the common item is the 12v being provided by the battery. If multiple unrelated issues are showing up the likely cause is bad 12v battery [or charging system ... 12v-inverter in hybrid]. In fact the 12v supply should be confirmed before reading the codes.
In this case, after the 12v battery was replaced the error codes will take a bit to reestablish.
Having the dreaded "Check Hybris System" message with my car. In my case (it has happened twice so far... one year apart; once with my son driving and once with me). In both cases, the message comes up, I noticed these things...
1. First time with my son... the say was hot, he was driving on the highway at around 80-85 mph, message came on and he says the car got to the point that no matter how much throttle was given, the car kept slowing down so he pulled over and had it towed home. The car sat for a couple of weeks until I was able to look at it. Made sure all fluids were at the correct level, started and it drove fine. Not a problem for around one year of mostly my wife driving it to and from work (10 miles each way on flat terrain and stop and go traffic).
2. Last week, we was driving in the mountains, on tarmac, cool day but spirited driving. The message came up again plus the yellow triangle with exclamation point (red symbol never displayed). I drove a bit mostly trying to fine a place to pull over but noticed that the engine was revving but the car was moving slower and slower until I stopped. Had the car towed back home; waited a day, made sure all fluids looked good. Started it and took it for a drive and it has no problems once again. Note, in both cases, I have the Blue Driver Code Reader and was able to clear all codes.
There has to be enough diagnosing information here to come up with a remedy, I hope! Both cases... codes P2601 and P3000 came up. Unfortunately, these are generic codes that do not tell me much.
The idea that it might be the transmission oil pump going bad is intriguing. How else can this be verified?
This is the part number for a transmission oil pump and not for the inverter coolant pump... to clarify.
Originally Posted by Bradan
My RX450H 2010 display warning: Check Hybrid System. I took it to Lexus they give me Error code: P2603 and said Hybrid Oil pump is bad need replace. quote for $1300 part and labor.
I order the part online for $585 shipped and have my brother installed. Part number
35300-48011 - Genuine Lexus PUMP ASSY, OIL W/MOTOR
We made sure that the filter grille areas by the rear passenger's feet remained clear during this last instance and the filters were cleaned out last summer.
The dealer charged a lot for diagnostics, but didn't fix anything. The error code was P0AA6-526. There was no secondary code indicating the location of the source of the error code. The best article on this problem that I have found is in the Toyota Tech publication link shown below:
08-16-23 | 12:47 PM
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