GMC Repair: airbag sensor location, chevrolet tahoe, airbag module

Question
I have a 1999 Chevrolet Tahoe LS 4x4 that had an accident and the airbags deployed I have replacement bags, I would like to know where the sensors are located so I can check to see if I need to replace them,Do they have to be replaced or will they reset when the new airbags are installed. Thanks

Answer
Hi
You'll need to replace any deployed airbag module. You'll need to replace the SDM (Sensing and diagnostic module) which is located under the left front seat.
The Front end sensor is located under the front of the vehicle, mounted under the radiator.
I hope this helps