Can of chicken left in hot car - okay or trash
Referencing Shelf-Stable Food Safety, from The Food Safety and Inspection Service in the US.

There are several factors that limit the shelf life of canned foods. First, cans can rust over time. Shipping accidents, where cans fall and dent or are crushed, also cause container problems.
Then there’s can corrosion. In all foods, but especially in high-acid foods like
canned tomatoes, natural chemicals in the food continually react with the
container. Over several years, this can cause taste and texture changes, and
eventually lower the nutritional value of the food.
High temperatures (over 100 °F) are harmful to canned goods too. The risk
of spoilage jumps sharply as storage temperatures rise. In fact, canned goods
designed for use in the tropics are specially manufactured.

The exact determination here depends on exactly how hot the interior of your glovebox was getting on particularly hot days, but that's impossible to know. Personally, I doubt that the temperature ever reached dangerous levels and would just enjoy my can of chicken.
However, you may have different tolerance for risk levels than I would, so I hope that the information I've provided is sufficient for you to make a decision of your own. The absolute 0% risk determination would be to simply throw it away. It's your choice.