2020 GMC Yukon Paint Color Codes & Touch-Up Guide

Whether you are fixing a small door ding, touching up a rock chip on the hood, or doing a larger panel repair, getting the exact paint match for your 2020 GMC Yukon is crucial. GMC offers a range of stunning colors for this full-size SUV, from the deep Onyx Black to the premium White Frost Tricoat.

To help you get your Yukon looking brand new, we have compiled the ultimate paint code guide for the 2020 model year.

Quick reference

Below is the complete list of factory paint colors offered for the 2020 GMC Yukon. Note that General Motors often uses two codes for the same color: a three-digit RPO (Regular Production Option) code and a "WA" code. Both will get you the exact same color.

Color Name	Paint Code (RPO / WA)	Type
Onyx Black	GBA / WA8555	Solid
Summit White	GAZ / WA8624	Solid
Quicksilver Metallic	GAN / WA636R	Metallic
Satin Steel Metallic	G9K / WA464C	Metallic
Dark Sky Metallic	GJI / WA626D	Metallic
Smokey Quartz Metallic	GSK / WA73XP	Metallic
Crimson Red Tintcoat	G1E / WA405Y	Metallic / Tintcoat
White Frost Tricoat	G1W / WA140X	Pearl / Tricoat

Note: If you are uncertain about your specific color, we highly recommend confirming via your VIN at a local GM dealer or through your paint supplier.

Where to find your paint code

Finding the paint code on a 2020 GMC Yukon is straightforward, but General Motors made a transition in where they place these codes.

For the 2020 Yukon, look for the Service Parts Identification (SPID) label or the newer GM QR code label.

1. Driver's Side Door Jamb (B-Pillar): Open the driver's side door and look at the sticker located on the B-pillar or the door edge. On modern GM vehicles, this sticker features a QR code. At the bottom of this label, you will see a code starting with "BC/CC" (Basecoat/Clearcoat) followed by the "U" (Upper body) and a WA-code (e.g., U 8555).
2. Glove Box: On some Yukon configurations (carrying over older SPID label locations), a silver/white sticker inside the glove compartment lists all the RPO codes. Look at the very bottom line for a code starting with "BC/CC U" followed by your WA number.

Best touch-up paint sources

When it's time to buy paint, you have several reliable options depending on the size of your repair:

• AutomotiveTouchup: Highly recommended for precise OEM color matching. They offer custom-mixed paint in pens, half-ounce bottles, aerosol cans, and ready-to-spray pints/quarts for larger spray gun jobs.
• Dupli-Color: A great, readily available option for common GM colors like Onyx Black and Summit White. You can find their Exact-Match aerosol cans and 2-in-1 scratch fix pens at almost any local auto parts store.
• Tcoat Custom-Mix: Excellent for comprehensive kits that include primer, color, clearcoat, and blending solutions.
• GMC Dealership Parts Department: Going directly to the dealer ensures you get genuine ACDelco touch-up pens. This is often the safest bet for complex colors like White Frost Tricoat.

How to use touch-up paint

For minor scratches and chips, following a strict process ensures a durable and invisible repair:

1. Clean the area: Wash the repair area thoroughly with soap and water. Follow up with a wax and grease remover or rubbing alcohol to ensure no contaminants are left in the scratch.
2. Apply Primer: If the scratch goes down to the bare metal or plastic, apply a light coat of primer. Let it dry completely (usually 30 minutes).
3. Apply Base Coat: Shake the touch-up paint vigorously. Apply the color base coat in thin, light layers. Wait 10 to 15 minutes between coats until the scratch is fully covered. Do not glob the paint on.
4. Apply Clear Coat: The base coat provides the color, but the clear coat provides the gloss and UV protection. Once the base coat is completely dry (wait at least 30-60 minutes), apply 2-3 thin layers of clear coat.

Color matching tips for pearls and tri-coats

If your Yukon is painted in White Frost Tricoat (G1W/WA140X) or Crimson Red Tintcoat (G1E/WA405Y), be aware that these are complex multi-stage paints.

Tri-coats require a base color, a translucent pearl/tint mid-coat, and a protective clear coat. When touching up a tri-coat, apply the base coat first until the dark spot is covered. Then, apply the mid-coat very carefully in extremely thin layers. The more mid-coat you apply, the darker and more yellow/red the finish will become. Practice on a piece of scrap metal or cardboard first to gauge how many mid-coats are needed to match the factory finish on your Yukon.

If the damage is larger than a quarter, aerosol cans and touch-up pens will rarely yield a perfect result on a pearl or metallic finish. For larger scrapes, professional blending into the adjacent panels is required.

Find a trusted body shop on Repairius.