Inspect the belt for cracks or damage. If the belt is cracked or damaged, replace it.
Check that the position of the auto-tensioner indicator (A) is within the standard range (B) as shown. If it is out of the standard range, replace the drive belt.

Online Reference Owner's Manual
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
This owner’s manual covers all models of your vehicle. You may find ...
Spark Plug Inspection
Remove the ignition coils and the spark plugs.
Inspect the electrodes and the ceramic insulator:
Burned or worn electrodes may be caused by these conditions:
...
Power Windows System Description
Anti-pinch Power Window OperationThe system is composed of the power window control unit (built into the power
window master switch) and the driver's power window motor.
The driver's p ...