If the service is free, take advantage of the fluid changes. I doubt they would cover AHC. You can do that yourself. It's about $80-$100 for the Toyota AHC fluid. Takes a few hours in your driveway to bleed out old fluid and add more behind the passenger tire wheel well area. Easy enough. Just be patient when it's all done and you are trying to get it to go up/down. Some guys will bleed a corner and start the vehicle back up to make sure it's pulling fluids throughout. I actually had a vacuum lock and was not able to bleed one corner. I took the same pump to add fluid and hooked it up to AHC drain line. It took some work to get the AHC fluid drained. That is kind of rare. Although others have mentioned if you are getting chocolate milk AHC fluid, it's got air in the lines. Regardless, It's worth the effort. Look at the color of my fluids from two different corners. This was at 89,000 miles. AHC had never been serviced. I replaced the globes while I was at it for around $400 - shipped from Japan. Toyota accumulator globes. Makes a big difference in ride quality. You should be ok until you approach 100,000 miles. Good luck.
LX570 AHC “Basics” - Added as sticky thread for AHC Issues
- Thread starter longranger
- Start date
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Yeah, I guess I’m coming here to assuage my fears. Up until us buying it was maintained exclusively at the dealership we bought it from and it’s survived them, the PO was the feather of one of the employees there so maybe they got the special trestment… idk. I’d rather not make that drive and I have a lead from another Mud member on a good dealer who is local.
But yeah, I’m really afraid that I’m falling prey to the free service temptation here.
According to the paper work and the service manager, the CPO comes with what’s in the service manual for the next 4 services for free. Here is the page for the service I’m considering having them do:
Informing them that we tow should then trigger the diffs, T-case, and tranny, this is according to the service manager from the selling dealership. I would make sure this is the case before going to the servicing dealership. I’ve done all this myself on our cruiser but I have not done a AHC before. However, it doesn’t look difficult. All that to say that the cost of the fluids is what’s temping me. This would wipe out my entire stock of fluids so I’m visiting dealership regardless.
How difficult would the AHC service be with a LRA?
I would be surprised if they do it for free. At 60k the dealer did a bunch of stuff on mine under the Certified Lexus warranty service, including spark plugs (which I didn't think were even due) and brake fluid, but not the AHC fluid.
That’s wild that they’d do the spark plugs that aren’t even required and not the fluid.
it's easier than bleeding brakes. Leave the rig on, make sure the fluid stays topped off in reservoir, attach a hose to the nipple, crack it open, drain some fluid for a few seconds, close the nipple, let AHC pump relift the rig, repeat until you're happy. Don't let dealer touch the AHC.
24LRA has no impact on AHC service.
Dealers may kill more…but they have to fix what they kill for free. No cost.
Owners on here have been known to make things worst too that required days/weeks/month and $$$$$$ thru eBay to get it right.
He is getting it FREE from Lexus dealer. It is a no-brainer! Are you guys serious?! That is the worst advice ever!
Based on experiences. Botched dealership jobs that take months to resolve or don’t because they seem to often work harder at denying they botched it than performing the work properly.
We are just showing our trauma
I’ve seen/experienced dealers do worse. For free, under warranty fluid changes, sure, go to the dealer. Just ask them about their experience servicing AHC before letting them do anything with it. Get things in writing, where necessary.
Worst over complicated, rust prone components, and expensive suspension system I have seen in my life 
. Dealer quote $36,000 parts only 
. Independant 8gs OME Ahc delete$1,300 for parts do the math .
. Dealer quote $36,000 parts only . Independant 8gs OME Ahc delete$1,300 for parts do the math .
You can find the parts online much much cheaper and get this whole thing fixed. I forget where the parts are---they may even come from Japan but they are out there. I think I found it in this thread so read the whole thing.Worst over complicated, rust prone components, and expensive suspension system I have seen in my life
I have a 2020 LC HE and bought a 2017 LX570 for my wife recently when I decided her 2021 4runner wasn't great quality vis-a-vis the 200s. I researched this issue a lot before I purchased as the dealer that sold me the car was trying to scare me in to some warranty option. I've got a Toyota/Lexus specialist I use for everything I don't do myself and I took it to them for a pre-purchase inspection prior to buying and expressed my reluctance about this system. They are adamant that the AHC system is a great system and should just be left alone as a closed system. What I found in my research was that if it DID need to be repaired I could get it done for a reasonable cost---nothing like the $8 or $10k the dealer quoted me.
Just my own experience. I hope you can figure out an economically viable solution. Sorry you're dealing with this!
Dealer quoted 36gs. I have all the parts and intention was to install them, but with rust being so bad on the hardware it's consuming way too much time. Going with OME 200 series suspension.
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My understanding is that certain years can't be easily converted to traditional shock/strut suspension, if at all, because of electronics. If yours can that's the obvious choice. I called Slee Offroad on this and they won't do it to a 2017.Dealer quoted 36gs. I have all the parts and intention was to install them, but with rust being so bad on the hardware it's consuming way too much time. Going with OME 200 series suspension
Of course they would say this...then when system goes bad, they will take you to the back and have their way with you....
AHC is just horrible. Questionable benefit on-road or off-road...but maintenance nightmare.
I’m not saying it’s a great system but they had no reason to game me. I hadn’t even bought the car yet. If anything they would’ve said yes we should service it regularly and change the fluid regularly rather than waiting for it to potentially go bad in another 150k miles.
Lx has 130,000 on it! Lexus should own this! Components are crap but frame looks new WTF!
Look at frame perfect, look at bracket for hydralic line and hardware and top of shock! If we lived in South West this would'nt happen. It's inferior material and Lexus should own it. Should've been stainless steel like the exhaust that is still fully intact at 130,000 miles on a 300,000 mile truck
Look at frame perfect, look at bracket for hydralic line and hardware and top of shock! If we lived in South West this would'nt happen. It's inferior material and Lexus should own it. Should've been stainless steel like the exhaust that is still fully intact at 130,000 miles on a 300,000 mile truck
It will go bad sooner than 150k….
nwfl4runner
GOLD Star
No it won’t. There, we’ve balanced out hyperbole
Maybe yours went bad because you said so many bad things about it. I bet if I talk nice about mine it will treat me well. About 88k miles now. I’ll check in at 150k which, with the way my wife drives, will probably be late summer.
nwfl4runner
GOLD Star
Easy to convert if you want to, easy to maintain if you want to keep it. A lot of us push the AHC and with a fluid flush and globe replacement it’ll last assuming you don’t have rust. It’s a fun system