2020 GMC Sierra 1500 Paint Codes
A complete guide to all the factory paint colors and codes for the 2020 GMC Sierra 1500.
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference
| Color Name | Paint Code | Type |
|---|---|---|
| Onyx Black | GAZ | Solid |
| Summit White | GAZ | Solid |
| Cardinal Red | G7C | Solid |
| Satin Steel Metallic | G9K | Metallic |
| Quicksilver Metallic | GAN | Metallic |
| Carbon Black Metallic | GCI | Metallic |
| Dark Sky Metallic | GJI | Metallic |
| Pacific Blue Metallic | G6M | Metallic |
| Red Quartz Tintcoat | GS7 | Pearl |
| White Frost Tricoat | G1W | Pearl |
| Brownstone Metallic | GMW | Metallic |
| Smokey Quartz Metallic | GS6 | Metallic |
Where To Find Your Paint Code
To find the paint code for your 2020 GMC Sierra 1500, look for the "Service Parts Identification" sticker, which is usually located in the glove box. On this sticker, you'll find a list of three-character codes. Look for the code that begins with "WA" or "BC/CC U". The four-digit number that follows is your paint code. It will be listed next to a "U" for upper body color.
Best Touch-up Paint Sources
- Dupli-Color: Offers a wide range of colors for many domestic and import vehicles, including the 2020 GMC Sierra 1500. Their Scratch-Fix All-in-1 touch-up tool is a great option for small chips and scratches.
- AutomotiveTouchup: This company can provide you with the exact color of your truck in a variety of formats, including paint pens, brush-in bottles, and aerosol cans.
- T-Coat Custom Mix: For a perfect match, a local T-Coat custom mix paint supplier can use your truck's VIN to mix a batch of paint that will be an exact match to your truck's color.
- Dealer: Your local GMC dealer can also provide you with touch-up paint that is a perfect match to your truck's color.
How To Use Touch-Up Paint
- Clean the area: The first step is to clean the area you're going to be painting with a wax and grease remover.
- Primer: Next, apply a thin layer of primer to the area. This will help the paint adhere to the surface.
- Base Coat: Once the primer is dry, apply a thin layer of the base coat. This is the color coat.
- Clear Coat: Finally, apply a thin layer of clear coat. This will protect the paint and give it a glossy finish.
Color Matching Tips For Pearls And Tri-Coats
- Pearls: Pearl paints have a special effect that can be difficult to match. The best way to match a pearl paint is to use a spray-out card. A spray-out card is a small card that you can spray with the paint to see how it will look in different lighting conditions.
- Tri-Coats: Tri-coat paints have three layers of paint: a base coat, a mid coat, and a clear coat. The mid coat is a translucent layer that gives the paint its special effect. The best way to match a tri-coat paint is to use a spray-out card. A spray-out card is a small card that you can spray with the paint to see how it will look in different lighting conditions.
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More specs for the 2020 GMC Sierra 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2020 GMC Sierra 1500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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