Valve clearance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Explanation of scheduled maintenance items / Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation.
See also:
142,500 miles (228,000 km) or 114 months
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (142,500 miles (228,000 km) or 228 months) ...
Air bag inflation conditions
Front air bags
Front air bags are designed to inflate in a frontal collision depending on the
intensity, speed or angles of impact of the front collision. ...
Overdrive Switch
When the overdrive switch is turned on, the transaxle will automatically upshift
to the second, third and overdrive gears. When the overdrive switch is turned off,
the transaxle will not upshift ...


