Adding equipment to or modifying your air bag-equipped vehicle
Hyundai Sonata / Sonata 2011 Owners Manual / Safety features of your vehicle / Air bag non-inflation conditions / Adding equipment to or modifying your air bag-equipped vehicle
If you modify your vehicle by changing your vehicle's frame, bumper system, front end or side sheet metal or ride height, this may affect the operation of your vehicle's air bag system.
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Brake hoses and lines
Visually check for proper installation, chafing, cracks, deterioration and any
leakage. Replace any deteriorated or damaged parts immediately. ...
Tire replacement
If the tire is worn evenly, a tread wear indicator will appear as a solid band
across the tread. This shows there is less than 1/16 inch (1.6 mm) of tread left
on the tire. Replace the tire when ...
Spark plugs
Make sure to install new spark plugs of the correct heat range. ...