Why are my parking lights not working, but my brake lights and turn signals are?

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. For a 2023 Ram, I would imagine you are underneath the 3 year, 36,000 mile factory warranty - unless you are over 36,000 miles. As a result, see your local dealership for assistance likely covered. In the event you are over 36,000 miles - you can seek guidance at a local shop near you, see below. Things I would wonder about would be if there is a wiring harness to a trailer hitch installed, and how that has been wired. Also, when you say "parking lights" are you speaking of the turn signal lights front and rear being illuminated without the headlights -- or with the headlights also? More information would help, but ultimately, hands on inspection will be needed. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.