One problem related to starter relay has been reported for the 2003 Chevrolet Blazer. The most recently reported issues are listed below.
The contact owns a 2003 Chevrolet Blazer. The contact stated after several attempts starting the ignition, the engine failed to operate. The vehicle was towed to the residence. The vehicle was diagnosed by a certified mechanic, who informed that the starter relay switch would need to be replaced. The vehicle had not been repaired. The manufacturer was not notified of the problem. The approximate failure mileage was 115,000.