The trunk latch of your Kia won’t be covered under warranty unless it broke due to manufacturer error. If you broke your trunk latch on your own, repairs won’t be covered under the warranty.
It’s worth mentioning that Kia had a huge trunk latch recall in 2021. The company recalled over 600,000 vehicles due to issues with their trunks sticking shut. If this problem sounds familiar, you may be able to get your trunk repaired as part of this recall! Talk to your dealer to learn more about your options.