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    Paint Color Codes

    2024 GMC Sierra 2500HD Paint Codes

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    Quick reference

    Color NamePaint CodeType
    Onyx BlackGBASolid
    Summit WhiteGAZSolid
    Cardinal RedG7CSolid
    Pepperdust MetallicG7QMetallic
    Dark Walnut MetallicG6MMetallic
    Marine Blue MetallicG1KMetallic
    Titanium Rush MetallicG6NMetallic
    Volcanic Red TintcoatGNTMetallic
    Sterling MetallicGXDMetallic
    Downpour MetallicG8FMetallic
    White Frost TricoatGD1Tri-coat

    Where to find your paint code

    For most 2024 GMC Sierra 2500HD trucks, the paint code can be found on a sticker located on the glove box door or the driver's side door jamb. This sticker will typically provide a wealth of information, including the VIN, gross vehicle weight rating, and of course, the exterior paint code. The paint code is usually a two- or three-digit alphanumeric code, sometimes preceded by a "WA" or "BC/CC" designation. Always confirm the code on the sticker itself to ensure accuracy.

    Best touch-up paint sources

    When it comes to keeping your 2024 GMC Sierra 2500HD looking its best, touch-up paint is an essential item for minor scratches and chips. Here are some of the best sources:

    • Dupli-Color: A widely available brand, Dupli-Color offers a variety of touch-up paint options, including paint pens, brush bottles, and aerosol cans. They often have color matches for popular GMC shades. Check their website or local auto parts store.
    • AutomotiveTouchup: This company specializes in custom-mixed touch-up paint that is formulated to precisely match your vehicle's factory color. You can order directly from their website using your paint code or VIN. They offer various product types, including small bottles, aerosol cans, and even larger quantities for more extensive repairs.
    • Tcoat Custom-Mix: Tcoat is another excellent online resource for high-quality, custom-matched touch-up paint. They similarly use your specific paint code to create an accurate color match, especially helpful for metallic or pearl finishes that can be tricky to replicate.
    • GMC Dealership: Your local GMC dealership is a reliable source for authentic factory touch-up paint. They can typically order the exact color match for your Sierra 2500HD, ensuring the best possible result.

    How to use touch-up paint

    Achieving a seamless touch-up requires a bit of patience and attention to detail. Follow these steps for the best results:

    1. Clean the area: Thoroughly clean the chipped or scratched area with soap and water, then wipe with rubbing alcohol to remove any remaining wax, grease, or contaminants. Allow it to dry completely.
    2. Apply primer (if necessary): For deeper scratches that expose bare metal or plastic, apply a thin coat of primer. Allow it to dry according to the product instructions. This helps with adhesion and prevents rust.
    3. Apply base coat: Shake the touch-up paint thoroughly. Apply thin layers of the base coat, allowing each coat to dry for the recommended time before applying the next. Build up the color gradually until it matches the surrounding paint. For metallic or pearl colors, pay attention to the flake consistency.
    4. Apply clear coat: Once the base coat is fully dry, apply one or two thin layers of clear coat. This protects the base coat and provides a glossy finish that blends with the factory paint.

    Color matching tips for pearls and tri-coats

    Pearl and tri-coat paints, like White Frost Tricoat, consist of multiple layers that contribute to their unique depth and shimmer. Matching these colors can be more challenging:

    • Layering is key: The base color, pearl mid-coat, and clear coat all play a role in the final appearance. When using touch-up paint for these finishes, it's crucial to apply each layer according to the product instructions, ensuring proper drying times between coats.
    • Metallics and flake orientation: Metallic paints achieve their sparkle from tiny metallic flakes. When applying touch-up paint, try to mimic the original paint's application direction to ensure the metallic flakes align correctly, minimizing visible differences.
    • Test on a discrete area: Before applying touch-up paint to a highly visible area, test it on a hidden spot or a paint swatches card. This allows you to evaluate the color match and practice your technique.

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    More specs for the 2024 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

    Maintenance & repair guides

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