Les Lex 2018

I checked the ducts on the 18 RX and I think you are absolutely right. The vent openings are 3/16” x 7/16” slots. This IS BIG enough to allow some rodents in. OK, then here is the fix. Go to Loews and have them run you off about 3 or 4 feet of their aluminum screen off the roll they use for this purpose. Open the hood. Just under the windshield wipers is a recessed bay that has 4 banks of grated opening (on the 2018 anyway). Cut out the screen to fit over each air bank. Then use silicone caulk around the rim to hold them over each of the banks. Let it dry. Cons: That may restrict some air flow but ask Lexus about that. Also, do mice like to chew on aluminum screen? When I had mice in the attic, they had me stuff scree into the air vent between bricks on the outside and that did keep them out. Really hope this helps.

You may have finished off the mice yourself if and when you left the car out somewhere on a hot day. Nothing or no one survives that. Call pest control - they are brilliant when it come to ways of eliminating rodents. Too quote my pest guy, “the only thing that attracts rodents is food, a warm place to stay, and privacy”. In other words, they are hungry, warm blooded animals that enjoy your crumbs, but don’t enjoy your company. Sound like they found one or two of those needs in your Lexus. As for vented seats, there is no air blowing thru the seat and the car is new. I’ll ask Lexus Support to define “The meaning of “vented” so I can troubleshoot it myself. The dealer consultant was no help by saying that it really doesn’t “vent” like you would think. Good luck with the pest control guy - you need one...

Aren’t those air vent intakes located in front of the windshield and already grated to prevent rodent/bird intrusion? Could be coming in from the inside and not via the vents. But not likely you or anyone would leave a Lexus outside with the windows or sunroof open long enough for a bird to build a nest and hatch a chick. So neither your scenario or mine makes much sence. Sorry, but no help.

Ventilated seats are a big let down. I went to setting/vehicle/ventilated seats and set the 0 (normal) to max cool (-2). set mode to S_Mode. Cranked down the AC and turned on the cooling to all high position (3-green LEDs. No air coming form the seats and the seat is warm except for the front 5 inches of the seat. Took it to the dealer and they verified that all setting were correct and that it was working because the front 5-inches of the seat was cool which the rest was ambient temp. Used a powerful LED flashlight to see if any light shines thru the seat anywhere and nothing so I don’t believe its designed to be “ventilated” BUT rather cold air blown under the seat where something is better than nothing. A true head scratcher in deed, Paul.

Actual Results taken today: 66 MPH indicating 27 MPG while on adaptive radar cruise = constant speed. Engine: 8th gear 1,800 RPM 20” tires. 10 MPH headwind. FWD These are roughfly the conditions you should be reading in an 18 RX-350 that is on auto-pilot.

The 18 RX has what I thought was a useless IPOD tray with a flip up cover. Its just big enough for a stack of ones and a coin purse. I like it and use it. F Sport console may not be the same.

My wife had knee replacements which made her shorter (believe it or not) and with the seat low, she still can not back into the seat. So I built her a 4 inch hi step with carpet and a handle to attach a cord. She stand on the step, sits down and pulls up the step by the cord and places it on the passenger seat. Works great. FYI: I traded a Camry because it was too low for her to get out of after surgery. Now she can’t get into the RX. She could not get into the RAV4 either. What the heck are you going to do.

Fill up the tank. Reset the [after fuel MPG]. Reset the trip A or B. Next time you get gas, does the Indicated MPG match what you calculate by using Trip divided by gallons put in the tank? If they match, that sez you have a real problem and not just a computer glitch. IF so, watch your tach rpm when you are going 65 MPH? IF the engine has warmed up and the tack is much higher than 2000, you may be in a lower gear than you should and that should only happen when you are using the paddle to force a lower gear, which I’m sure you don’t. Almost seems like your are not reaching 7th or 8th gear.

Thank you Paul! I’ll investigate your findings today and report back hopefully with similar results. So far, I’ve not seen any indication that the feature is working but the weather has been cool and I don’t leave the car out for long periods like you would if you used it for work so have yet to drive it on a hot day sitting in the sun. The RX only has 300 miles and I’m still testing all the features. Thanks for the added info. Did not understand after reading the book that the seat fan could be tied into the speed of the AC Fan.

Here are actual numbers on an 18 RX FWD: 29 MPG at 55 MPH Interstate. 27 MPG at 65 MPH Interstate. 26 MPG at 70 MPH Interstate. I can’t extrapolate 80 MPH but guess you are getting poor MPG at that speed. MPG to MPH is not a linear function. Drag gets a lot worse the faster you go. No reason to worry about how much fuel you have left in the tank unless you are trying for a record. I found that the driver’s bladder gets full long before the gas tank gets empty.

Same question in a new 2018. My guess is that if the driver is sitting on the seat, the air will be blocked. So the design is therefore to cool the leather seat, which in turn will then cool the driver indirectly. I will leave the RX in park with the air on and place a strip of paper on the seat to see if it moves around.

After 4.5 years driving the Camry 2.5 H and trading up to the V6 RX-350, I can tell you the following: Best Camry H MPG was in the suburbs always hit rated at 43. Second best is 50 MPH on state divided highway, 45 MPG where you can run under 60 MPH. Worst was city under 7 miles distantly from point A to B - 38 MPG Next worst is Interstate running at 70 to keep from getting run over. Contrast: My RX-350 non-H gets only 21 mixed town/suburbs and 26 on the interstate. Based on size, weight and engine size differences, no complaints or surprise there. The H is perfect for someone with long commute times in heavy traffic. Freeway fliers? Not so much better than a non-H.