I would try this first method here and then method 2. Method 3 last

To reset the TPMS on a 2011 Traverse, you can follow one of the following methods12345:

• Method 1: Park your vehicle, turn the ignition key on, but keep the engine off. Press the engine start/stop switch for about five seconds to set your vehicle to Service Mode. Scroll to the Tire Pressure menu using the steering wheel’s Driver Information Center (DIC) buttons. Press and hold the V button to activate the relearn process.

• Method 2: Turn the radio off. Push and hold the center of the dial that changes the station (the big knob). Hold it down for 10 seconds, or until the menu comes up on the radio display. You can scroll through the menu til you find the tire monitor relearn.

• Method 3: Set the parking brake. Turn the ignition to ON/RUN with the engine off. Press the Remote Keyless Entry (RKE) transmitter's LOCK button and then the UNLOCK button. Slowly deflate the driver side front tire for 5-30 seconds. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.