So I had my car serviced recently 60k service, and while working on the engine bay I noticed my coolant reservoir is at the lowest point.

Just under the low mark, now is this normal? or should the dealers have topped that up to max?

The engine wasn't hot, this is how it looks after sitting overnight:

I can't see any coolant leaks around either.

 

Mine looked like that 2-3 months ago but I refilled it and haven't had a drop in level since, if I were you I would try the same and if it drops below again check for the valley plate leak.

 

No need to worry. Even on the low mark in the reservoir the car has plenty of coolant. You can top off for peace of mind.

 

Could possible be the valley plate leak, which you won't be able to see. If that's the case it'll be covered under the powertrain warranty. Just bring it to the dealer and tell them your coolant levels have been dropping and tell them you want them to check under the powertrain warranty.

My level was under low, when I had this issue diagnosed.

https://www.clublexus.com/forums/is-...ley-plate.html