One problem related to ignition switch has been reported for the 2015 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Chevrolet Tahoe based on all problems reported for the 2015 Tahoe.
The vehicle has a problem with the interior courtesy lights flashing or pulsation when you engage the brake and /or use the turn signal. See general motors bulletin number pi1268b,dome lights/ flicker on/off when operating brake pedal or turn signal,2014-2015 cadalliac,Chevrolet,GMC. The vehicle are a hazard to lift and limb to drive. The bulletin states this is not a safety issue,believe that. The ignition switches weren't a safety issue ,yet people were murdered by gm's problem.