See also:

Smart key
With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key. The functions of buttons on a smart key are similar to the remote keyless entry. ...

2011 Hyundai Sonata review by Sherrice Gilsbach
The 2011 Hyundai Sonata is a solid family sedan that offers gorgeous exterior styling and impressive gas mileage, but it lacks expressive drive-feel and is low on the fun factor. For many folks, g ...

Cooling system
Check cooling system components, such as radiator, coolant reservoir, hoses and connections for leakage and damage. Replace any damaged parts. ...