abdullad

did you replace the steering wheel?

Is the Gas Cap closed Tightly??

Check the mounting surface on the axle side. You may have seen some scratches, nicks, or a non-flat surface causing leak, even with the seal in place.

check the brake pads if they need to be changed or the tiers all the best

Change all 4 for best performance and saving hassle and labor cost to change other 2 after few months.

If car is too old its better to change all four at once and save the hassle after few months and yea. If you intend to sell the car soon or low on budget you can change only which is squeaking and not all and wait for others to fail.

Get to AC mechanic and ask him to check the lower vent while lying on the floor if its working. More than sure it wont be working thats why on auto or leg/face setting you feel hot in leg area.

Get the altnator and battery checked either of one is dying and dimming the lights. Or check the dash dimming light option too, may be it got changed by mistake.

My QX56 2005 model GCC specs, sometime not starting immediately after i shut off engine. Otherwise everyday in morning or night after long break it starts instantly without fail. This problem happening since last week or so. Is it spark plug dying? or Battery dying? Please help.