Same issue just recently, everything happened the same way with no warning and now Toyota wants $6k to fix my engine damage, I have a case number with Toyota and I know they know about this problem, this car was bought brand new from Toyota and all maintenance has been performed at Toyota, I will not pay for their Incompetentance. I posted everything below on their corporate Facebook page and all over my own, if I don't get the answer I want by Tuesday 28 June 2016 I will email president of Toyota in the US and located in NY as well as going to my local news station to do an investigation and I will obtain as lawyer, I will not lose this battle and will update as things go along.
I have a 2008 Toyota Highlander and my (rubber) oil line ruptured and oil leaked out of my car completely. A warning on the screen popped up really quick saying low oil pressure and it quickly went away. It came on again a few minutes later saying the same thing and went off quickly again (no check engine light) and the third time it stayed on so I could read there entire warning that said pull over immediately. The engine didn't seize but only because I was just around the corner from my mother in law's home when that final message stayed on for me to read it in full. I checked the engine oil and the motor was bone dry, nothing on the dipstick, all the oil was underneath the car and on the back side, I had it towed to a mechanic and he found that the rubber oil line had failed causing all the oil to quickly drain from the vehicle, my mechanic changed out the line with an all metal line. Good to go right, no, after picking up the vehicle and driving it for about an hour the check engine light came on spit out a bunch of codes that are a direct cause of the oil line failure. Now my vehicle is at Toyota not being repaired because I now have a case# in order to have Toyota pay for my now $6k engine issue because of a problem Toyota already knew about and didn't inform all customers about (which is explained below), I had the original oil line replaced but that was literally a band aid for the bigger issue and should have been replaced with the all metal lines:
UPDATE AS OF SEPTEMBER, 2011
The primary purpose of this site was to force Toyota to do a recall of the 1.6 million Toyota and Lexus vehicles affected by a poorly designed oil line "assembly" that was causing unexpected engine damage or failure. The body of this site has not been edited since March 2010 once Toyota issued the hoped for recalls, albeit with many flaws. If you are here in this site and think you have an issue with the defective oil line, here is a summary of where it stands now:
Problem: A defective design of the VVT-i oil line is a rubber hose which routes a high pressure flow of hot engine oil outside the engine block. The rubber deteriorates over time and miles and can unexpectedly break or rupture causing engine oil to rapidly drain from the engine. This can happen anywhere from about 20,000 to over 100,000 miles and can lead to very expensive repairs. Most owners report getting no warning from the from the oil or check engine lights before they realize they have a problem.
Vehicles affected: Any 2005 - 2009 Toyota or Lexus with the 3.5L V6 2GR-FE engine manufactured worldwide prior to April, 2008.
Manufactuing fix: Replace the defective metal & rubber oil line "assembly" with an all metal oil line.
Recall fix: Change out faulty rubber hose in the oil line "assembly" with a higher stregnth rubber hose. The rubber hose was not replaced with an all metal oil line as was done in the manufacturing fix was becasue in some but not all vehicles afftected, the job is very labor intensive if the engine compartment is a "tight fit" which could (but not in all cases) require removal of the power steering pump, sepentine belts, etc depending on how "tight" the engine compartment is.
Key problems with Toyota/Lexus recall notices: (1) The cheap "band-aid" fix (one rubber hose replaceed by another ) may not last the life of the rest of the car, (2) The recall was VIN specific and due to apparent glitches in Toyota computer systems, not all affected vehicles received the recall notice (3) The USA version had no sense of urgency attached to it (unlike the Canadian version) so many owners paid no attention to it. In the USA, the letter says essentially "offer good until March 2013" with no mileage limit specified while in Canada, the letter essentially said "bring it in right away." To make USA matters worse, the notices came in the same envelope - unattached - as the "sudden acceleration" recalls and could easily be ignored by the recipient, and most important - (4) although implicit in the wording of the USA recall, all post 60,000 mile warranty repairs for ancillary engine damage should be covered, although treatment amongst dealers is inconsistent and many have to "fight" to get repairs covered, especially where there is severe engine damage.
Since this site was created there have been hundreds of more posts in assorted forums and blogs citing the same problems already noted. If you follow the links provided or just do Google searches using the key words that apply to you, you can probably find a way to get your issue resolved. The most important thing to note here is that Toyota will pay for ancillary and/or post warranty repairs relating to engine damage (there are already several cases noted in the body of this site). While some are wating for a class action lawsuit or otherwise trying to get relief from Toyota. The latest evidence that such repairs will be paid for by Toyota can be found in the third generation Avalon forum where Toyota has paid for damage to the engine that occurred after the expiration of the standard 5 year 60,000 mile powertrain warranty - even in cases where the oil line broke during the factory warranty but the ancillary engine damage did not show up until after the factory powertrain warranty had expired. The person who started the following thread in that forum asked for help finally got his problem resolved finally ..... and there are others other who had gotten refunds, too.
Everything I read about this issue just is infuriating, this vehicle since being bought was maintenanced by Toyota, my mother in law bought it new from Toyota in Arizona and sold it to her daughter and me. All oil changes are from Toyota and never was this issue brought to our attention, this is a failure to let customers know the truth. Toyota must accept responsibility for its failure to make this a recall under safety because if this happens on a freeway going 70mph and the engine happens to seize it could inevitably injure or kill someone. I will happily change my rating and change this post if Toyota takes responsibility for this known issue, to makes matters worse I am military and literally moving to a new duty station, I had my family in the vehicle driving from Maryland to Arizona before going on to San Diego and just had the vehicle in the Toyota shop. This could have easily happened in the middle of nowhere with no cell service, again I have notified Toyota and have a case# but am waiting till Tuesday for a reply, so right now my car is sitting at Toyota waiting on a 5 day $6k engine rebuild simply for a faulty oil line that Toyota knew was in need of all metal lines.
Do the right thing Toyota!