2DN — Front tires: 7.50R16/D BL R/ST TL Highway. This code identifies the factory tire specification, application, or spare-wheel equipment. Browse RPO codes →
My 2025 Chevrolet Traverse did not appear to leave the factory with the setup identified by 2DN: “Front tires: 7.50R16/D BL R/ST TL Highway. This code identifies the factory tire specification, application, or spare-wheel equipment” I am considering adding it. Does the retrofit normally involve control-module programming, a different harness, or additional hardware?
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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 2DN.
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Some codes are reused across several brands, but that does not always mean the parts are identical. Model, trim, drivetrain, and production date can all matter.
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My experience has been positive, but the benefit depends on how the vehicle is used. I would treat 2DN as confirmation of the configuration, then evaluate whether that equipment matters for your driving.
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For a retrofit, check the modules, wiring connectors, software configuration, and compatible part numbers first. Installing the visible component alone may not make the feature operational.
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Some codes are reused across several brands, but that does not always mean the parts are identical. Model, trim, drivetrain, and production date can all matter.
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For a retrofit, check the modules, wiring connectors, software configuration, and compatible part numbers first. Installing the visible component alone may not make the feature operational.
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