Yes.
Equally likely is if the belt is much more than 3-4 years, the material is glazing over or hardening, which is another common cause of squealing.
It could be the presence of water on pulleys causing the belts to slip. If it is persistent then this is a sign of worn-out or misaligned belts.
LOW AIR PRESSURE IN YOUR TIRES loose accessory belts such as alternator can squeal
Check the belts. The most common cause of squealing is a worn or loose belt on the front of the engine.
The belts are loose or warn out,or its the bearings in the idlear pulley
Possibly loose belts slipping on the rotating pulleys. Need tightening which isn't a complicated job but need to be careful not to over tighten which could cause damage to the pulleys and the belts could break if old.
you need to replace your belts. Take it to AutoZone to have them look at it
lack of oil
no Yes, it can cause the belt to squeak and slip.
Are they new belts or old belts. If the belts are new they may need to be tightned or a belt tensioner may need to be replaced. If all are new and tight there may be a part that is failing and is sliping cause it very hard for the belts to trun it.
Check for a vacuum leak around the throtle body and intake manifold.
probably your neighbours cat is locked in the boot ANSWER: LOL, Either that or one of the belts needs to be replaced.
It could be a bearing in an idler pulley.