4QU — Primary exterior color: Digital Green, Metallic 2. This code identifies the vehicle's factory-applied main exterior paint color. Browse RPO codes →
My 2025 GMC Canyon has code 4QU, described as “Primary exterior color: Digital Green, Metallic 2. This code identifies the vehicle's factory-applied main exterior paint color” I understand the basic definition, but I am interested in the practical effect during normal driving, towing, or highway use.
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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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The dealer should be able to pull a VIN-specific equipment or parts record. Ask them to search by VIN rather than entering only the three-character code.
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I would avoid buying retrofit parts until the connectors and module support are confirmed. Returning electronic or VIN-programmed components can be difficult.
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The dealer should be able to pull a VIN-specific equipment or parts record. Ask them to search by VIN rather than entering only the three-character code.
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If you are documenting the vehicle, save both the original wording and the readable explanation. That preserves the factory terminology while making the record understandable later.
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The dealer should be able to pull a VIN-specific equipment or parts record. Ask them to search by VIN rather than entering only the three-character code.
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I would start by checking the original build sheet and then compare the physical equipment on the vehicle. A sales or option code confirms the factory record, but it does not prove that every original component is still installed.
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I would avoid buying retrofit parts until the connectors and module support are confirmed. Returning electronic or VIN-programmed components can be difficult.
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My experience has been positive, but the benefit depends on how the vehicle is used. I would treat 4QU as confirmation of the configuration, then evaluate whether that equipment matters for your driving.
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