Windows iceing up on inside

You just go to the link below, I'm sure you will get the solution of your problem

https://www.reliable-store.com/products/2005-hyundai-santa-fe-service-repair-manual-download

Possible cylinder head gasket or freeze out plug. Get the system pressure tested & properly diagnosed. Damage can result

usually you will see coolant levels drop and the spots appear under the vehicle. The water pump has a small hole in the area of the shaft called a WEEP hole. The coolant starts dripping out of it when the busing inside the pump starts to wear. If you have to you can look under the car and see if there is any coolant on the undercarriage too.

On a 2005 Santa Fe with a 2.7 L engine it is located on air breather side. Air breather needs to be removed to get to it.

I would be checking the intake for any leaks as far as vacuum leaks around intake gaskets injectors, pcv valve ect that is a lean code and even can set from exhaust leaks at flex pipe

Here are some possibilities: Faulty EVAP canister vent valve, EGR valve stuck open, intake manifold vacuum leak, fuel filter clogged, fuel pump weak, fuel pump inlet screen clogged due to ice crystals at bottom of fuel tank, throttle body gasket leak, idle air control valve faulty, MAP or MAF sensors faulty.

Is what the liquid plain water or coolant (water mixed with antifreeze). touch and smell the liquid, no smell = water, antifreeze smell and oily feel = coolant.
If plain water, could be Air Condition condensation dripping from condensation drain which is normal. (this drain is usually located near the center of the vehicle).
If coolant, could be leak(s) from: radiator, radiator hose, heater hose, water pump, engine freeze plug. A coolant system pressure test should show what is leaking.

Air filter check every month / replace when you can not see daylight though the air filter

Coolant 2 years or 24,000 miles

Oil 3 months or 3000 miles

Transmission 2 years or 24,000 miles

more frequent if you drive in dusty area or carry heavy load.

This is from the factory service manual of your car:
There is no onboard programming procedure for this vehicle. This vehicle requires special equipment be connected to the vehicle to program the keyless remote. Translation you need the dealer to do this.