Why does my car only have heat while driving?
Why does my car only have heat while driving? When your vehicle is in motion and driving down the road, then engine coolant temperature tends to get hotter on the engine before it gets to the radiator, so the heater will naturally heat up more when driving around. Top off the coolant if its low. Why is there no heat on the passenger side? Could be a control panel issue. It's most likely not anything related to the heater core since you're getting heat on the passenger side. Just like thenaaks said, the door actuators might have gone bad. Small...