Turn signal stops working while pressing the brakes

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your Altima. It sounds like your turn signal issue is tied to an electrical problem, likely involving a short or ground issue within the wiring. When you press the brake pedal, it might create a short that interrupts the turn signal circuit. The fact that your gear indicator on the dash also goes off suggests a connection issue, possibly a loose ground wire, or a fault in the wiring harness. Checking the connections in the tail light assemblies and under the dash might help pinpoint the problem. These problems can get a little complex, so it may not be a bad idea to consult a trusted shop for diagnosis. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!