Denali Driver Power Assist Step

[Moose0814]

The toe kick button on the side of the running board no longer extends the step to the rear wheel, however I can have it extend through the button in the interior.

 

Also seems to be moving a bit slower when opening the door.

 

Any ideas to repair and improve functionality and performance?

[Glava2876]

Had this on my 2020 and had to have the switch replaced. Mine also started running slow and eventually reversing.

I found something on google that showed the same problem and it was a problem with corrosion at the pins -only 28k miles, but I live in central NY.

Followed the directions to take them apart, clean and lube. Totally fixed the problem and was pretty easy to do.

[Moose0814]

Just now, Glava2876 said:

Had this on my 2020 and had to have the switch replaced. Mine also started running slow and eventually reversing.

I found something on google that showed the same problem and it was a problem with corrosion at the pins -only 28k miles, but I live in central NY.

Followed the directions to take them apart, clean and lube. Totally fixed the problem and was pretty easy to do.

 

Thank you for the reply! I am in WNY. You replaced the toe kick switch on the running boards or interior? Could you share the link to clean? I would really appreciate it.

 

[Glava2876]

The switch was replaced on the running board.

Search “2020 Denali power running board fix” and I put the link on it.

pretty straight forward -good luck!

[KMP259]

Once you get the boards off…here’s what we did…

 

 

 

 

[KMP259]

[H60 Gunner]

GMC Sierra 1500 Denali package with electric running boards:  If you live in winter snow/ice conditions, consider keeping the running boards in the out position full time.  This is done by making sure the running boards are extended and then pulling the circuit breaker in the engine bay.  Justification is to prevent motor issues when extending in icing conditions.  I have don e this already on my Denali and am very glad I did.  Also will protect the truck from door dings by other cars.