Please ID these things ...

[skag1T]

2018 4Runner SR5.

Tyrying to figure out what these components/things/ are.

First is located above the spare wheel - and looks like it's missing a bolt.

Second is under the hood in front of the radiator - looks like a check window of some sort.

Thanks !

 

[ProLee]

Top one is part of your fuel evap system and the bottom shows the oil in your AC system.

 

[Saker]

Yep,
1) evap canister and 2) refrigerant system window. (no bubbles should be present there. If your AC stops cooling, check for bubbles there)

 

[skag1T]

Awesome, thank you !

 

[vipergrhd]

Technical term

The first one is your Evap canister it's job is to store gas vapors and burn it later in the engine. The second one is a liquid sight glass of your HVAC system it's there to check for air bubbles in the system small amounts of air bubbles are normal when the system is running.