Lexus GX 2004-09 :: Rear Air Suspension - Car Height Was No Longer Working
Jun 29, 2011
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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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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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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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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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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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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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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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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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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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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when to use this feature.
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Noticed this rear suspension noise on their RX330's. Every time I go up a slanted driveway (driving into a driveway at an angle, not head on), there is a clunking noise coming from the right rear of the car. The sounds it makes is almost as if I the spare tire is lose hitting on the right side of the car. This only happens if I am driving into a driveway coming from the right side, the sounds does not happen if I am entering my driveway from the left side.
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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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I've had the stiff ride issue with my 2005 gx470. Took it to three lexus dealers and finally the vehicle is fixed. Hats off to Lexus of Maplewood, St Paul, MN. Their shop foreman persisted and found after several days troubleshooting; a speed sensor was the culprit. My ride is much smoother over speed bumps without the need to cycle through the height adjustment.
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How to fix rear air suspension from dropping down to bump stops ...if I reset it every night it is fine but if not it will be down on bump stops by morning.
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I just had the rear air compressor suspension replaced, but when it activates it sounds pretty noisy. It doesn't sound normal. What the heck is going on?
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I am having a problem with my rear suspension. The indicator lights on the dash (for the rear suspension control) are working correctly as are the controls on the center console, however the rear of my vehicle is stuck in a high position.
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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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