When the Safety Restraint System light stays on, this means there is a problem with the airbag system. If the SRS light only blinks when the car is first turned on, this is completely normal. The SRS light blinks upon starting to indicate that the system is checking for malfunctions in the supplemental restraint system.
The most common cause of an SRS light staying on is a problem with an airbag. Take the car to a dealership so that a diagnostic test can be done to find out which part of the system is malfunctioning. The SRS light also will come on any time a car seat is disconnected from the electrical system. When a seatbelt has been replaced, the car should be taken to a dealership to have the SRS system reset.