One problem related to alternator/generator/regulator has been reported for the 2014 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 GMC Acadia based on all problems reported for the 2014 Acadia.
A code p1682 -ignition switch circuit will pop up. I've had the problem for a year, the vehicle will seem like it doesn't have a lot of power at times. The engine light will come on, reduced engine power and traction control off. The battery voltage drops below 13 . I have changed the battery, alternator, throttle body, gas pedal sensory. It does all of that while driving, and starts to stall on me. That code popped up once last year and I took it to the shop and they said it wouldn't come up and it's doing it a lot more. I have did research and have seen many issues with a fuse block and ignition switch.