My truck is pulling to the right, and causing some wear on the tires. I had it aligned, and the tires balanced...they said as far as they could tell, everything was right...but it's still pulling. The tech said to have the electronic steering checked. Is electronic steering a "real thing"...I hate to sound like a girl, but I've asked several men and no one has ever heard of that and I don't want to take it to the dealer unless absolutely necessary, our local dealership is not known for their quality work. It's a 2015 GMC Sierra 2500HD Denali, 4wd.

 

I have had the same symptoms after putting on new tires. After alignment and balancing the truck pulled and it turned out to be a bad tire. Slipped belt or something like that. You could swap the front tires and it it's a bad tire, it should pull the other way. Good luck.

BTW It does have electric assist on the steering but I can't see how that would cause your problem. I have a 2014 with the same system.

 

Tracey,

Are you still under warranty? If so you may want to drive to a nearby town and let a dealer have at it.

Also, post up some pics