I know that this is a controversial subject, but 10k oil changes are a joke. You'd be lucky to get an engine to 200k miles with those sorts of intervals. Lexus recommends in-between services every 5k, but the in-between checks are mostly BS that any idiot can do (inspect, rotate tires, yada yada). I don't care how good the oil was that went into it, the oil can only hold so much crap in it before it starts to become overwhelmed. I'm not talking about big stuff that gets caught in filters, it's all of the small stuff like sulfur, soot, and carbon. These little particles (especially the sulfur!) love to wreak havoc on wear items, most notably rings and timing chains where there is not a large oil film present. There are additives present in oils to trap them and contain them within the oil, but eventually the additive gets all used up and the oil gets saturated with contaminants. Oil is cheap. Engines aren't. You'll never blow an engine by doing too many oil changes.
On the flip side, air filters are something I do extend my change intervals on. It's a common misconception that a clean air filter means getting the cleanest possible air in to the engine. Paper/fiber air filters (oiled filters are a different story entirely, but I won't get into those nightmares) actually filter the most debris out when they are dirty, not when they are clean. As the filter traps dirt, that dirt and paper combination clog up the holes that the air flows through. This, in turn, actually traps smaller and smaller debris as the filter is used. Modern intake systems are designed exceptionally well. They're all true cold-air intakes now and the filters are very robust. These days the aftermarket 'Cold Air Intake Kits' are actually detrimental to performance and usually do nothing except make the intake louder by removing baffling and resonance chambers. We're actually starting to see this in the diesel world that I worked in. Instead of a published maintenance interval, engine OEMs were just saying to run them until, "a noticeable loss in performance is observed. I kid you not, we'd see filters that caused 18-20 inHg of restriction come in that barely hurt their performance, but their turbocharged engines let them run that much restriction without affecting power too much. We would notice a performance drop well before that with our NA engines, and nobody should really let a filter get that bad before changing them out. However as far as filtration goes, the filter doesn't care what's sucking in air. It'll trap more as it ages, so the same rule applies to us.
If you plan on towing or off-roading, plan on upgrading the trans cooler. Change the trans fluid at the latest every 100k miles, sooner if you're really leaning on it. It may be best to have the dealer do it because fluid changes on these are finicky at best. Better to have the dealer swap a trans on their dime than yours if the change isn't done correctly.
Otherwise I'm pretty OK with the rest of the maintenance manual. I'm of firm belief that these maintenance manuals were written by marketers and not engineers, to use them as a selling feature for new cars. "Look at how little you have to spend on maintenance while you own this!" as you're burning a quart of oil every thousand miles.
I'm sure that everyone's going to have their own opinion on this, and there's probably going to be people that think I'm full of crap. However with all of my vehicles I've never lost a major component, save for the POS trans that was put in my Miata (don't buy a first model year vehicle, almost all of the rev 1 ND manuals have exploded at this point).
