See also:

Engine cooling system
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once ...

First impressions mean a lot
At first glance, the Optima gives off more than a hint of a European vibe. A vast stylistic improvement over the namesake that it replaces, it sports larger dimensions than the outgoing model. Sur ...

Knowing your vehicle
Keys Remote keyless entry Theft-alarm system Immobilizer system Door locks Windows Seat Safety belts Air bags-supplemental restraint system Trunk Hood Fuel filler lid Mirrors Interior lig ...