In 1997, over 900 cars were damaged by bears in the park and most of these incidents were caused by improper food storage. If your car will be parked in Yosemite after dark, it must not contain any food or related items (see storage instructions in following sections).
• Bears have damaged cars for as little as a stick of gum or an empty soda can, so thoroughly search you car and remove all potential bear attractants. Bears can clearly smell any food in a car, even when it's stored in the vehicle's trunk!
• Bears recognize ice chests, grocery bags, and other food-related supplies. Such items, even when empty, have residual odors. Remove them from vehicles and store them securely. Also remove drinks, garbage, and scented articles such as soap, sunscreen, and toothpaste from vehicles. Don't forget to check the glove compartment!
• Clear your car's interior of clutter. This will reduce the chances of a bear mistaking an article for food, and increase the chances that you will find any stray french fries or other overlooked food. Child car seats should be removed from vehicles since they often have residual food smells.
• Remove all trash and place it in animal-resistant trash cans or dumpsters