See also:

SIX-SPEED AUTOMATIC AND MANUAL TRANSMISSIONS
Hyundai's commitment to making the Hyundai Sonata extremely fuel efficient continues with a six-speed automatic transmission with SHIFTRONIC manual control or a standard six-speed manual transaxle ...

Engine
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Adjusting the height up and down (If Installed)
To raise the headrest, pull it up to the desired position (1). To lower the headrest, push and hold the release button (2) on the headrest support and lower the headrest to the desired position ...