How do you replace 2017 GMC Brake Light and Turn Signal Bulb? I have the quick flashing left turn signal now and brake light is out.

Also, I bought a 921LED and 7440LED bulb, but based on other posts I am not sure I should use an LED bulb?

2017 Limited or +2017 to 2019?
It's not advisable to use LED replacement bulbs for turn signals or brake lights unless the Acadia came with LED bulbs in those locations. Besides having to add a resistor to make them work, it is a risk to cause a fail to the Body Control Module $$$ and other issues from running your battery down to other systems.

Here is a video and other info that may help. Access to the Back Up Lights is via two removable panels in the interior lift gate that have to be pried off.

Tail Light Replacement on 2017 GMC Acadia SLE 2.5L 4 Cyl.

Get complete instructions for replacing a burnt-out tail light bulb on your 2017 GMC Acadia SLE 2.5L 4 Cyl. with our free how-to video.

www.carcarekiosk.com

 

2017 Limited or +2017 to 2019?

It's posted as a Denali. That would be a 2nd Gen C1XX-platform Acadia.