2005 Nissan Sentra-Heater Only Works When Car is in DRIVE?

Ivrea

New Member
I have a 2005 Nissan Sentra with about 38K miles on it. As of late, I've noticed that my heater only works when the car is in Drive. Just as soon as I put it into park the heat starts to feel like cold air. I live in Chicago so, its very cold around this time of year. I just filled up on anti-freeze and I'm current with my scheduled maintenance. What should I do? Is this issue a simple fix or should I take my car in to be serviced? My car is not running hot and the A/C works fine......
 
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