One problem related to check engine light on has been reported for the 2014 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 GMC Sierra 1500 based on all problems reported for the 2014 Sierra 1500.
When driving recently, my check engine light started flashing along with my stabilitrak light coming on. The vehicle started vibrating. The vibrating was especially rough while idle. The vibration was also rough while in lower gears and while braking. When brought in for service I was told it was a corroded ignition coil. This is the second time this has happened. I bought the vehicle new and it currently has about 37,000 miles on it.