4A5 — Interior trim: Jet Black/Shale. This code identifies the factory upholstery material, color combination, or interior trim specification. Browse RPO codes →
Two similar GMC Acadia build sheets use different codes for what appears to be the same feature. Mine uses 4A5, described as “Interior trim: Jet Black/Shale. This code identifies the factory upholstery material, color combination, or interior trim specification” Can anyone explain how these variations are normally handled?
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A window sticker is helpful for customer-facing option names, while the build sheet is usually more detailed. If they disagree, the vehicle-specific dealer equipment list can help connect the sales name to 4A5.
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The safest interpretation is the one tied to the exact VIN, model year, platform, and market. In general, 4A5 matches “Interior trim: Jet Black/Shale. This code identifies the factory upholstery material, color combination, or interior trim specification” but the included hardware can vary between applications.
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My experience has been positive, but the benefit depends on how the vehicle is used. I would treat 4A5 as confirmation of the configuration, then evaluate whether that equipment matters for your driving.
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A clear photo of the build label, VIN report, and the relevant component would help. Do not post the full VIN publicly; the last eight characters are normally enough for a parts-counter discussion.
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A window sticker is helpful for customer-facing option names, while the build sheet is usually more detailed. If they disagree, the vehicle-specific dealer equipment list can help connect the sales name to 4A5.
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Good point about not posting the full VIN. I will compare the part number and connector before deciding on the retrofit.
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