I know the drivers door can be unlocked with a key when the battery is dead, and the inside hood release will also work. (mechanics.stackexchange.com)
An incorrectly installed hood release cable assembly, which could result in the hood opening while driving (yourmechanic.com)
A push - button hood release on the car's nose is a smart idea as anyone who has ever fumbled for the secondary release on a hot hood can tell you. (articles.orlandosentinel.com)