2014 – 2018 Silverado / Sierra – HUD Retrofit Harness


Retrofit HUD (Head-Up Display) to your 2014 – 2018 Silverado Sierra Truck. read more
Chevrolet, GMC
.6875 lbs
9 × 6 × 1 in
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1 review

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For those that want to add HUD (Head-Up Display) to your 2014 – 2018 Silverado / Sierra Truck (K2XX), this is the harness you’ll need.

HUD is a feature that GM introduced into the SUV platform trucks (Suburban, Yukon).  HUD projects information you want to keep track of right onto your windshield in color.  This helps you keep you eyes on the road.

There is a comprehensive process to successfully retrofitting HUD to your Silverado / Sierra Truck.

This product is just for the harness portion of the retrofit.

Parts List:

NOTE:  If you have a Denali Truck, you WILL need to send your factory cluster to WAMS to get the HUD enabled on your cluster.

Prior to purchasing your cluster, confirm fitment with WAMS.    

  • HUD Windshield:  This is needed to eliminate the ghosting effect that occurs on a non “Laminated” windshield.

GM Parts:

  • Part #23474646:  HUD Projector
  • Part # 22758784:  HUD Projector Trim Ring
  • Part # 23193704:  HUD Switch

Dash Modification:

You will need to cut your speaker/defrost cowl to fit the HUD  Projector unit and trim ring.  This cuts needs to be pretty precise to align/mate with the HUD Projector.  The HUD Project will mount underneath and secured by some bolts.  


In order to mount the HUD Projector Unit, you will need to cut the Driver Side Windshield Defrost Piping in the dash (you will lose the driver side window defrost).  This is the defrost vent next to the headlight switch.


You need to modify your bezel to accommodate the HUD Switch as shown.  A dremel is used to cut the opening.  

You can see the ghosting effect here with a Non – Laminated Windshield.  You’ll want a Laminated HUD Acoustic Windshield.

Laminated (HUD Acoustic) Windshield

Much clearer/crisper projection

For more information on this retrofit, please visit GM-Trucks’ Thread Here –

Additional information

.6875 lbs
9 × 6 × 1 in

Reviews (1)

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  • Ferree

    I had been reading this 2017 BLOG on GM-TRUCKS about doing a 2016 Denali Cluster upgrade and added a HUD. I have a 2015 Tahoe LT and wanted to do the same, since we’re keeping it rather than trading it in. So, I ordered everything on WAMS, and the various parts to complete project. Harness Dr is the the only firm willing to make this particular harness to marry the HUD unit, HUD switches, and the new Cluster. The directions – while daunting at first – were actually fairly straightforward. When I had questions – Phil (owner) was very kind to offer me feedback.
    Honestly – I’m not someone who typically works on cars – never actually, So, if I can do this – you certainly can!

    HOW TO: