I replaced 2013 Chevy Spark Ignition key!!!!
1. I bought a replacement key from replacemyremote.com
for $22.
2. I then had a locksmith cut it from the sole key I had.
3. Put existing working key in ignition and turned on until all of warning lights and gauges were on without starting engine. Leave in for 10 seconds.
4. Insert newly cut key and boom, we have ignition baby!
5. $22 for key $2 to cut. $24 out of pocket. Not bad!