One problem related to ignition coils failure has been reported for the 2005 Saturn ION. The most recently reported issues are listed below.
2005 Saturn Ion. Consumer writes in regards to vehicle ignition switch recall notice and repairs. In September 2008, the ses light illuminated. The dealer replaced the ignition coil. In June 2011, the ignition switch was replaced. In may 2012, the ignition switch was sticking, and the consumer was unable to remove the key, the ignition switch and tumbler were replaced.