One problem related to battery cable 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.
Our Tahoe has had an issue over the past 9 months. The engine unexpectedly stalls. This has happened twice while pulling out on to a busy highway. Very frightening. We first took this to the dealer on 8/15/17. They spent hours trying to diagnose and found nothing. The stalling continued to happen occasionally. Early December the stalling occurred while pulling in to our garage. We lost all power momentarily and it would not restart this time. I disconnected the negative battery cable and then reconnected it and everything worked fine again. We took it back to the dealer on 12/8/17. Iafter researching this more it seems numerous people are having the same issue. Traction control warning comes on when the stall occurs. This time I was more insistent that they fix this and explained my wife was scared to death to drive this. This time the dealer said that they have changed the negative battery cable on other customers vehicles and that has fixed the problem. My reaction was why didn't you tell us this last time and why isn't there a recall? so far this has fixed the problem. I contacted gm and they did not give me a straight answer on this proble. Basically they said we may have had a defective part.