It would be highly unlikely that all four motors (five if the rear door is inop) are bad. Most likely it would be the CPU, which might be the covered as a "Major Component".
Good Luck
I use the following hand operated vacuum pump, this thing is great. Has the power to pull power steering fluid through the steering rack from the reservoir.
Hand-Operated Vacuum Pump - Lee Valley Tools
I had the same issue, 5 to 6 lbs breakway preload using the maximum nut torque setting. I attributed this to using synthetic wheel bearing grease. I left it at the maxium nut torque setting and rechecked it after 5000 miles, there was no change in the breakway preload. It has been fine for the...
Had my LX windshield crack in Montana while relocating from San Franciso to Montreal. Insurance allowed the used of OEM but my $250 deductible was applied. They would have waived the deductible if I went with a non-OEM windshield. Since my US insurance would only do the work in the US, I drove...
I requested a quote from Bobby Rahal Lexus in Harrisburg PA for a Timing belt/Idler bearings and water pump replacement. They came back at $1500, when questioned they indicated it was the 90K service + the idler bearings/water pump.
When I clarified that I just wanted the timing belt/Idler...
I replaced the motor on my driver's door using the motors from eBay. A couple of notes, I used a Raychem heat gun (hi temperature used for solder sleeves) to facilitate release of the adhesive to separate the clam shells. The motor failed as it was full of corrosion preventative (Metropolitan...
I get the same noise but it is more of a feeling in the the seat of your pants. It only happens when I have the drivers seat completely low. If I raise it up slightly the noise/feeling goes away. I had it checked by the dealer under warranty but they did not find anything. I lowered the seat...