Front Air Bag Sensor Control problems of the 2004 Chevrolet Silverado

I recently purchased a used 2004 chev. Silverado pick-up in 7-2005 from a car dealer in our area. Within a short time frame from the purchase the air bag light came on for no apparent reason. I took the truck to the dealer where I purchased it and they advised that it would cost approx. $550. 00 to replace an sdm module. I have spoken to several mechanics since and they advised that they have seen this same problem with the chev. Silverado pick-ups driver air bag. I believe that this is a safety issue that should be looked into. I believe that they have a defective coil spring in the air bag system which will not allow the steering wheel airbag to operate. Please check and advise. Thanks.

While driving the air bag light came on , and the computer read out, saying servicing air bag. The consumer took vehicle to the dealer, they placed it on the computer and stated it showed no defects, and warranty has expired.

The air bag light was on after being serviced on three occasions. The air coil, air bag module and module diag sensor sensor were replaced.