Interior light

Do not use the interior lights for extended periods when the engine is not running. It may cause battery discharge.

See also:

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, ...

2010 TUCSON 61 POUNDS LIGHTER THAN THE OUTGOING MODEL DESPITE BEING THREE INCHES LONGER
World-class weight efficiency was one of the program targets for the Hyundai Tucson engineering team. In fact, the 2010 Tucson leads all of its competitors in weight efficiency. Hyundai engineers ...

Immobilizer system (if equipped)
Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use. Your immobilizer system is comprised of a small transponder in the ignition key ...