Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation.
See also:
Check battery and cables
Winter puts additional burdens on the battery system. Visually inspect the battery
and cables as described in section 7. The level of charge in your battery can be
checked by an authorized HYUNDAI ...
Performance
The Sonata Hybrid has a 166-horsepower, 2.4-liter four-cylinder engine and a
30-kilowatt electric motor that produce a combined 206 hp. This is a common
setup for a hybrid, though the Sonata Hybri ...
Tire traction
Tire traction can be reduced if you drive on worn tires, tires that are improperly
inflated or on slippery road surfaces. Tires should be replaced when tread wear
indicators appear. To reduce the ...