I got a 2010 Scion xD with 189k miles standard/ manual transmission and it sometimes squeaks early in the morning, so I want to know why it’s doing that and how reliable are those cars
Possible belt squeal or maybe 1 of the rubber bushings. Watch Scotty's video about AT-205 and try spraying that stuff on the bushings.
Spray some water on the serpentine belt when you hear a the squeak noise and if it goes away, it is time to change the belt.
They are reliable cars specially with the manual transmission which adds more fun to it. The only thing you need to keep in mind it to keep your eyes on the oil level since they’re cars tend to burn oil. Just add every now and the. To avoid ruining your engine.
If belt is in good condition go to the belt tensioner.