> I just picked up my new LX 600 and the heat soak through that massive windshield is no joke. I’m looking for a premium ceramic tint to keep the cabin cool and protect the leather interior.

Congrats on the new rig! So, basically, the LX has a massive Greenhouse area, and that windshield is basically a giant solar oven. For high-end ceramic, the Total Solar Energy Rejection (TSER) is the spec you gotta watch.

I'm running XPEL PRIME XR PLUS on mine and honestly, the heat rejection is insane... like 98% Infrared rejection. I went with 70% on the windshield—it’s basically clear so you don't get pulled over, but it KILLS the heat soak. For the front windows, I used 20% to match the factory rear privacy glass. It's not a perfect 100% match cuz factory glass has a slightly different hue, but it's pretty dang close. 3M Crystalline is also top-tier, but it can sometimes have a weird blue/brown tint depending on the angle. Personally, I’m super happy with the XPEL. Definitely worth the premium price to save that leather! gl!

> I’m looking for a premium ceramic tint

I suggest 3M Crystalline Window Film over XPEL Prime XR Plus. 3M has better clarity and less haze, making it safer for the windshield, though it's usually more expensive.

Ok so, I’ve been a bit of a DIY guy with my cars for like forever, but I really gotta warn you about trying to tint that LX 600 windshield yourself or even going to a shop that doesnt specialize in high-end SUVs. That massive greenhouse is a total beast to work with and can go wrong fast. A few things to watch out for regarding the install:
- Electronics: There is sooo much sensitive tech tucked behind the rear-view mirror and under the dash. If the installer uses too much slip solution (basically soapy water), it can literally drip down and fry your sensors or cause weird electrical ghosts in the infotainment.
- Heat shrinking: Because that glass is huge and has a complex curve, it takes a lot of heat to get the film to lay flat. If theyre not careful, they can actually stress the glass or melt the rubber seals around the pillars.
- Gap at the top: Make sure they tuck it properly; otherwise, youll see a light gap that is super distracting given how high up you sit in this truck. Basically, dont let some budget shop touch your Lexus just to save a few bucks. Tbh, even though I usually do my own work, I took mine to a pro because I was worried about the moisture getting into the dash electronics. Its 100% worth paying for someone who uses soak ropes and dash covers.

Late to the party here but I'm basically in the same boat. I'm super paranoid about messing anything up on a car this nice, so I've been doing a deep dive into the technical side of things before I even think about touching it. Quick question tho, does your LX 600 have the Head-Up Display? The reason I ask is that some ceramic films can actually cause this weird ghosting effect with the HUD projection on the windshield. If you want something super safe for visibility, I'd check out Huper Optik Ceramic Series 70 for that big front glass. It's known for being one of the clearest films out there and it uses a different tech than most ceramics, so it doesn't get that low angle haze that people complain about with other brands. For the side windows to match the factory rear, maybe look at Autobahn i3 Ceramic 20. It's a multi-stage ceramic that handles heat really well. I'm still debating if I should try to DIY the side windows to save money or just pay a pro, but honestly with all the sensors and the leather in the LX, it feels risky. If you do go the pro route, just make sure they use plenty of protection for the dash electronics like soak ropes and towels!

Seconding the recommendation above for ceramic on that windshield. If you want the best performance for the price, look at XPEL Prime XR Plus. It's high-end but honestly cheaper than 3M Crystalline and blocks 98% of IR heat. Just a tip: if you want to match the factory rear privacy glass, you'll probably need 20% on the front windows. Anything lighter looks off... just my 2 cents!

I went through this last year with my LX and, honestly, the IR heat was killing me. Ceramic is basicly a must-have for that windshield. I tried out the LLumar FormulaOne Stratos after hearing it has slightly better clarity than the XR Plus. Technicaly, the TSER is similar, but it made a HUGE difference on my leather. I went with 80% on the front to stay legal-ish and it's actually invisible but blocks so much heat!!

TL;DR: Ceramic windshield tint SAVES the interior. Look into LLumar FormulaOne Stratos 80 or Suntek Evolve as solid alternatives.