I believe ATESSA is Nissan, no? The GX has a Torsen center differential.
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First question, can I punch this vin number in somewhere and see if its had any TSB work performed ?
I believe ATESSA is Nissan, no? The GX has a Torsen center differential.
You can register your VIN on Lexus Drivers and it'll show you any work done at a Lexus dealer.
Lexus Owners Site | Lexus Drivers
We should probably put a sticky together for this, as it gets asked frequently but there's no central repository of knowledge.
You can read up on year-to-year differences here: Lexus GX470
There are wiring diagrams and DIY's on ClubLexus: GX - 1st Gen (2004-2009) - Club Lexus Forums
Commonly found problems and other general information you should know:
- Test the center differential before you buy. The vast majority of GX's are soccermom pavement queens - if the actuator is frozen up, you want to know before you buy one and have a $1k+ repair.
- Driveshaft clunk (grease band-aids it, but the proper fix is updated parts per Lexus TSB)
- Radiators tend to leak around 100-150k (easy replacement)
- Dashboards crack (Lexus will warranty them until the end of May 2017, I believe)
- Nav is generally terrible. Get non-nav if you can (so you can install an aftermarket head unit -- factory nav only has one upgrade option, namely the Grom V-Line, which has not performed all that well). That said, I had nav in both of mine (07, because I found a Sport model and 07+ nav is much better so I didn't care -- and 05, because I found a KDSS model and it was $8k so I figured I'd get over it). 07+ also provides an auxiliary jack (not sure if this is for all 07's, or just nav and/or ML combinations).
- Mark Levinson speakers are not standard auto speakers. There are a few aftermarket speakers that will match up to the ML amplifier, or you can buy surround repair kits if your speakers start to fail.
- KDSS vs non-KDSS will spur endless debate. To sum it up, if you are not interested in long travel, KDSS will give you superior on and off road handling. It will get in the way for some things (you can't fit much larger of a spare, you can't get aftermarket lower control arms, and you have to be careful what sliders and skids you buy so they will clear the KDSS system). I have it on both of my trucks and I'm pleased. Others have gone long travel and ripped it out. I figure if mine ever fails, I'll pull it and go long travel with the money I would've spent to repair it.
- Airbags will eventually fail. A coil conversion is the most common fix, as it's better for offroad purposes and also cheaper.
- 2005+ will get you the VVT-i 2UZ-FE with about a 35hp boost. This adds some emissions complexity, namely an air pump that requires intake manifold removal to repair. There is a delete kit or an aftermarket Dorman part available to either remove or repair the system if it fails. This does not impact driveability at all, just cold-start emissions.
- CD changers sometimes fail, though with a pre-07 you don't have MP3 capability anyway so you might as well throw it out and install a bluetooth/aux adapter instead.
- Rear air conditioning only came with GX's ordered with the rear seat package.
- A transmission cooler is standard, whether or not you have the towing package.
- The inside rear door handle breaks on basically everybody's GX. You can get a new one online from Lexus for about 20 bucks, or fashion/buy something else out of paracord, nylon webbing, etc.
- Front differential supports were revised for 2006 (possibly 2007). If you have a 2003-2005, you will want to install the updated front differential supports from Lexus (at least the one big one; I'm not sure if the other two were also upgraded). Failure to do so may result in the differential support catastrophically failing, which is a really bad day for anything close to the differential (i.e. your oil pan, and consequently your motor).
GX470 FAQI was also unaware of the front diff support issue. Sound like it could be serious. Where i live the roads are super rough and huge potholes are almost unavoidable. Hurts when you hit a big one you don't expect or cant dodge. Is there some one with more detailed info on this subject? Maybe part numbers of the updated diff supports. I looked on Lexuspartsnow.com and found 3 diff support brackets from the 07 model, which is supposed to be the updated version of the part/parts?? not too sure. (i have the affected 04) Any help will be appreciated.

This is not a cheap replacement, you are looking at $380 for all three from LexusPartsNow.com![]()
I was also unaware of the front diff support issue. Sound like it could be serious. Where i live the roads are super rough and huge potholes are almost unavoidable. Hurts when you hit a big one you don't expect or cant dodge. Is there some one with more detailed info on this subject? Maybe part numbers of the updated diff supports. I looked on Lexuspartsnow.com and found 3 diff support brackets from the 07 model, which is supposed to be the updated version of the part/parts?? not too sure. (i have the affected 04) Any help will be appreciated.