Lexus GX 2004-09 :: Rear Suspension Airbag - Height Control Is Inoperative
Dec 28, 2015
I own a 2004 GX470 and am recently having issues with my rear airbag. The height control is inoperative and the bags will not fill completely and lift the rear.
I went under the car and found the bumpstops are a few centimeters off the rear axle.
What could cause the height control to not function? Could it be the height sensor, airbag, etc? I could hear the air compressor turn on so do not think that is an issue.
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I took my 2003 GX470 for service (not a Lexus dealer), which included rear brake pads. After picking up my car, I realized there was a serious malfunction with the rear air suspension, and my "car height" was no longer working. I took it back to the mechanic immediately - he stated that the rear air bag deflated when they put it up on the lift (which is normal). However, they couldn't get it to inflate again, so had to order a new one. I'm wondering if this is the mechanic's problem or mine (the car has 101,000 miles on it).
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Air suspension stay on HIGH position, the SELECT button is showing on NORMAL. I try to push UP or DOWN, the green led indicator doesn't respond, just stay at NORMAL position and NO flash at all.
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I'm the owner of GX 470 2006 85 k miles, facing a problem of height control failure. The problem started some few months ago while starting the car. I there was a noise behind on the height compressor. Took it to my mechanical and the noise disappeared because the compressor wasn't well fixed to the body. Since then i'm not able to adjust the height of the car. The car remains at the height low level and jumping dangerously each time i drive it inside a hole. Decided to go back to the mechanical the following code error appeared during the diagnosis: P1445. How can this code be related to the height control system when we know that this code is related to the secondary air injection system switching valve?
I decided to change the 2 height sensors located on the R and L rear side of the vehicule and the VSV locate in the engine. The problem remains. Now the dashboard keeps the green light at N and the button to raise and low the height of the car is not responding. More the mechanic can't anymore obtain the errors code from his diagnosis device.
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So my rear air suspension just went out, I'm assuming that my air bags have a leak or a hole because the air compressor shut its self off. I'm thinking of just getting rid of the air system completely and just putting on some good shocks and leveling it out.
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I have a 2006 GX470. It has some sort of automatic rear suspension height adjustment. When it is malfunctioning the rear of the car is jacked up like I have pimped it out. I use the height adjustment button but when I resume driving the car moves back into the neutral position which is not neutral at all it is jacked to the top. I had the sensors replaced once for $1,000 but within a year it was doing the same thing.
Now the light flashes to lower the back end but the back end doesn't move. I am stuck in the jacked up mode.
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when to use this feature.
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I was driving today and noticed the ride was a harsh and bumpy. I stopped the car and try raising the car by pressing the up arrow on the height control switch, however, nothing happened.
The height control indicator is on "N" and it does not change when I press the height control switch either "UP" or "DOWN".
I found a few cases online where people stated that the "Height Control Button Off" button would flash. I have no flashing or warning lights in my dashboard.
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Picked up this one owner 2003 with 120k miles, last week! I couldn't be happier with the build quality, and comfort. Its one solid truck! Its by far the nicest most luxurious vehicle my family has ever owned.
There is a flashing "off" light under the height control display on the dash. The height control says it is in neutral however the truck is currently sitting at 3ft from fender to road. I'm going through the owners manual and hopefully will find a way to get this corrected.
The truck will be taken to Lexus here in Dublin, OH on Saturday for a full inspection and fresh fluids.
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Car has a little over 100K. How to replace the bushings on the suspension arms. Took my car in for the brake switch recall and was told my bushings were cracked. Not sure which ones, but I assume all of them. Looked online for a DIY, but not for the RX330. From some of the DIY's I've seen so far, it looks like a bit$! to replace those rubber bushings.
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My steering wheel controls on the lower half quit working last year , then the cruise control quit intermittently last month , then the air bag light starts appearing last week. Deciding this means a failed clock spring / spiral cable , I took apart my spiral cable housing, and found two obvious breaks in the electrical wiring . I first bought a salvage unit on Ebay, to find it arrived bound, didn't turn freely (and no returns from seller). I then bought one from the dealer and installed it last week and very happily have all symptoms fixed!
The replacement was easier than I expected, the steering wheel was not actually very tight, I doubt I needed the steering wheel puller I 'borrowed' from the parts store , could have just loosed the main nut, wiggled and tugged it loose. Just a note be sure to remove 12 volt power from the car, and mark the steering wheel center shaft to the steering wheel for reinstall .
As a rural mail carrier I deliver mail out of my prius with the window down, traveling about 5 hours a day on dusty ,sand roads in Kansas. The car interior gets dusty and this caused the failure of the spiral cable.
Pic's of the old failed unit, the new one comes with some lubricant, white perhaps lithium grease for the ribbons/ wheels, mine had dryed up patches of grease, some I cleaned off the ribbons before the pictures where taken. I'll check the new one in a year, may regrease , cleaning it out to try to prevent this from happening again. I did add some plastic under the airbag to improvise a dust shield for the new spiral cable. Car has 197k bought it with 106k , now has around 60 k from driving on the route.
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Is there a way to re-program the tailgate/rear door height? Or even manually adjust? Just purchased a 2012 RX 350, and my garage is about 4 inches too short. Now I realize I can disable the electronic lift, but it's a shame not to be able to use this feature. I'm sure others have had this problem, but I've googled with no success.
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In my Driveway, many times I notice my GX in the rear is sagging. I measured it from the center of the wheel up . when it appears normal it is 21". When it is sagging it measures 18". So there is 3" difference.
What is causing this, I know some will say it maybe a airbag leak. I dont think thats the case and I MAYBE wrong. Because, when I park the car with with no sag at night and the height is 21" it stays like that in the morning.
I know there are lots of idea of doing a change over to regular struts. What is the best method out there?
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I have a question regarding the rear air suspension. After driving the vehicle for a short or extended period of time, I hear the rear passenger airbag/air-line loosing air as I turn off the ignition. I wanted to ask if this is normal or if I have a leak somewhere..
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I have a 2004 GX470. Been a great car. Has 310k miles and very little in repair. My current problem is the rear air suspension leaks down. The problem is not 100% of the time but probably 80% when the car is left parked and off, over a few hours the air is released and the rear is sitting on the bumpers. My theory is it is not the air bags as if one leaked it would be doing this every time the car sits.
My hunch is it is either the component that releases the air is not sealing up every time after it releases the prescribed air when the car is parked. ( That sound it makes when you get out and it lowers the car a little each time) ... Or the sensor tells that component to let more air out and it does not tell it to stop.
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I have a 2007 GX 470 that I use to tow a boat ~3500 lbs. Typically, when I attach the boat to the trailer hitch, the rear end of my GX 470 will lower ~1.5", then the air suspension will activate and bring the rear end back up to a nearly level position. Lately, the air suspension has quit working.
I've taken it to my dealership, they've checked it out and told me that the system is working fine. When I brought it home and attached the boat, the air suspension is still not working. I've got an appointment on Monday to haul the boat up to the Lexus dealer and show them the problem. I can use the air suspension switch to raise the the rear end and the pump seems to work just fine.
I'm thinking that, although the "system" is working fine, somewhere there has to be a sensor or switch that tells the system to work - that isn't working.
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Here's the problem with my 1994 Ford Aerostar 3.0 engine. As many have mentioned here, I'm getting the 5 chimes syndrome, indicating an issue with the airbag system. My specifics are:
The Airbag light does NOT light, even when the key is first turned on. You would think the light might be burned out, but I removed the instrument cluster and tested EVERY bulb. After hooking the instrument cluster back up, the light still wouldn't light, but I still get the 5 beeps.
The horn works (haven't tested the cruise control).
I'm not sure where to begin troubleshooting. I have the basic Chilton manual, but it's not troubleshooting the SRS. I understand the cautions when working on the SRS system, but would like to troubleshoot it myself. Unfortunately, I got laid off, and I can't afford to go to the Ford Shop.
1994 Aerostar XL w/3.0 engine, 144K miiles
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My rear air suspension keeps dropping. Sometimes my suspension goes down all the way when parked, but not all the time. When I start the car it goes back up. It's a 2003 GX470.
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Does this sound normal that sometimes the rear suspension with move/adjust itself after I turn off the car and then get out? One side appears to be slightly lower than the other as well, but both of the height adjusters underneath appear to be at the same level.
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I was driving along and all of a sudden it felt like the rear suspension was just not there it actually felt like it was bouncing on the frame. then it went away. I recently in the last year had the rear shocks changed with OEM shocks.....
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OK so I know that my rear suspension no longer operates the way it should...with 230K miles and owned since 03....time has taken its toll. So I was wondering if any parts list to repair the rear air suspension so that I can take it directly to my toyota dealer to install. I can tell that the air suspension is trashed simply because I would normally hear the car lower when I parked in the garage etc...now it doesn't do anything.
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