* The airbag sensor may have been damaged during the service. The airbag sensor is a small device that detects when the vehicle is in an accident and deploys the airbags. If the sensor is damaged, it may not be able to properly detect an accident, which could result in the airbags not deploying when they should.
* The airbag module may have been damaged during the service. The airbag module is a small computer that controls the deployment of the airbags. If the module is damaged, it may not be able to properly deploy the airbags when they should.
* The airbag wiring may have been damaged during the service. The airbag wiring is a series of wires that connect the airbag sensor, airbag module, and airbags. If the wiring is damaged, it may not be able to properly send signals between these components, which could result in the airbags not deploying when they should.
The cost to fix the airbag light issue in a 1998 Jeep Grand Cherokee will depend on the specific problem. If the airbag sensor is damaged, it will likely cost around $100 to replace. If the airbag module is damaged, it will likely cost around $200 to replace. If the airbag wiring is damaged, it will likely cost around $50 to $100 to repair.
In addition to the cost of the parts, there will also be a labor cost to install the new parts. The labor cost will vary depending on the mechanic, but it will likely cost around $100 to $200.