2015 GMC Sierra 2500HD Paint Codes
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 | GBA | Solid |
| Summit White | GAZ | Solid |
| Stone Blue Metallic | G1K | Metallic |
| Iridium Metallic | GAN | Metallic |
| Quicksilver Metallic | GAN | Metallic |
| Fire Red | G7C | Solid |
| Cobalt Green Metallic | G6V | Metallic |
| Deep Ruby Metallic | G7P | Metallic |
| Bronze Alloy Metallic | G1M | Metallic |
| White Diamond Tricoat | G1F | Pearl |
| Emerald Green Metallic | G7J | Metallic |
| Sonoma Red Metallic | G7U | Metallic |
Where to find your paint code
For your 2015 GMC Sierra 2500HD, the paint code is located on the Service Parts Identification sticker in the glove box. Look for the "BC/CC" (Basecoat/Clearcoat) and "U" (Upper Body Color) codes. The paint code will be a three-digit code, often starting with "G".
Best touch-up paint sources
- Dupli-Color: Offers a wide range of popular colors in easy-to-use aerosol cans and pens.
- AutomotiveTouchup: Provides custom-mixed paints to match your exact factory color.
- Tcoat custom-mix: Another great option for custom-mixed paints, ensuring a perfect match.
- Dealer: Your local GMC dealer can provide you with factory touch-up paint.
How to use touch-up paint
- Clean: Thoroughly clean the area to be repaired with soap and water, then use a wax and grease remover.
- Primer: Apply a thin layer of primer to the area, allowing it to dry completely.
- Base: Apply the base coat in thin, even layers, allowing each layer to dry before applying the next.
- Clear: Once the base coat is dry, apply a clear coat to protect the paint and give it a glossy finish.
Color matching tips for pearls and tri-coats
Pearl and tri-coat paints can be tricky to match. Here are a few tips:
- Use a test card: Before applying the paint to your truck, test it on a test card to ensure it's a good match.
- Blend the paint: When applying the paint, blend it into the surrounding area to create a seamless transition.
- Use a high-quality clear coat: A high-quality clear coat will help to protect the paint and give it a professional finish.
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More specs for the 2015 GMC Sierra 2500HD
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
2014 Sierra 2500HD
2016 Sierra 2500HD
2017 Sierra 2500HD
2018 Sierra 2500HD
2019 Sierra 2500HD
2020 Sierra 2500HD
Maintenance & repair guides
2015 GMC Sierra 2500HD 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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