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2005 Pontiac Grand Prix GTP Sedan 3.8L - Doors Won't Lock

Hotsuma9

Member
118
0
16
South Carolina
2005 Pontiac Grand Prix GTP Sedan 4-Door - 3800 Series 3 (Grey)

I'm not sure when this started but the doors won't lock when I double press the master lock switch on the drivers side. I turn the car off, take out the key, open the driver's side door, and then double press the lock switch. Every door should then lock itself. This used to work just fine but now it doesn't. I have to manually lock all the doors. What could be the problem? Bad BCM?
 
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