See also:

Air conditioning refrigerant
Check the air conditioning lines and connections for leakage and damage. ...

Traction control system (TCS)
(If installed) On slippery road surfaces, the traction control system (TCS) limits the drive wheels from spinning excessively, thus helping the car to accelerate. It also helps to provide suffic ...

Vacuum, Crankcase Ventilation Hoses
Inspect the surface of hoses for evidence of heat and/or mechanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasions, and excessive swelling indicate deterioration. Particular att ...