See also:

Changing the engine oil and filter
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Why didn’t my air bag go off in a collision? (Inflation and non-inflation conditions of the air bag)
There are many types of accidents in which the air bag would not be expected to provide additional protection. These include rear impacts, second or third collisions in multiple impact accidents, ...

Corrosion protection
Protecting Your Hyundai from Corrosion By using the most advanced design and construction practices to combat corrosion, Hyundai produces cars of the highest quality. However, this is only part of ...