Welcome, I am Chris (aka-Moose)
On the traction control light, I would need you to get it scanned to see which codes are stored to diagnose that concern.
The door locks and courtesy lamps are related to the door ajar sensor. At the VSM vehicle security module behind the right side of the glove box. Unplug connector A and OHM test the black/yellow pin 4 wire to ground. Drivers door closed the circuit should be closed. Door open the circuit should be open. If it does not change state, this means this wire is shorted to ground most likely in the door jam or the switch on the latch is stuck.
Below is the connector diagram link and auto lamp diag.
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