NHTSA Complaint #11478294 — 2017 GMC SIERRA 1500

This complaint is about the automatic extending/retracting foot steps on my GMC Sierra. The step is supposed to extend outwards when the door is opened and retract back under the truck when the door is closed. Instead, when the door is opened the step extends and at random will retract back inwards. Aside from being annoying this is actually dangerous as the other day i was exiting my truck with one foot on the step and the other reaching down to the ground when the step started retracting. The foot on the step was pulled under the truck and got stuck in the step. This threw me off balance and the other foot hit the ground at an angle and twisted my ankle. I called a local gmc dealership about it and they said they have seen a lot of trucks come in lately with the same issue and would have to replace the entire step for $1800. I brought it to an independent shop and they cleaned and greased the hinges so it happens less often now but it is still a problem. There are no warning lights or messages on the vehicle. It will also extend and retract at random when the truck is parked and off. This began happening around March of this year.