The Tahoe is set up with a tire pressure warning device. The sensors for this system are part of the valve assembly on the wheel. If the new wheels do not have the sensors in the valves, the system will keep going off because it is not getting a signal from the wheels. The shop who sold you the wheels should have taken the factory valves/sensors out of the wheels and put them in the new wheels before mounting the tires on them. All of the wheels we have for the new Tahoes will work with the factory sensors/valves. I'd be headed back to the shop who sold you this package without switching out the sensors. They've disabled an important safety feature of the vehicle. I'm amazed they didn't warn you about this.