Two problems related to check engine light on have been reported for the 2012 Subaru Legacy. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Subaru Legacy based on all problems reported for the 2012 Legacy.
The check engine light goes on and then causes the brake, traction and cruise lights to flash. The lights will go off after some time, not consistently. Spark plugs replaces two (2) coils replaced still no resolution.
The check engine light goes on and then causes the brake, traction and cruise lights to flash. The lights will go off after some time, not consistently. No authorized Subaru dealer has been able to identify the cause or even record the event.