3CarSeatDad

Can someone confirm if the GM order workbench terminal is able to validate a custom build sequence: 1) Initialize the Allocation Base: Open a new vehicle build queue, select the 2026 Chevrolet Suburban 4WD, and pick the High Country (3LZ Preferred Equipment Group). 2) Select the Diesel Powertrain: Go directly to the engine configuration screen and choose RPO code LZ0 (3.0L Duramax Turbo-Diesel). Ensure it maps to the MHS 10-speed automatic transmission. 3) Deploy the Seating Swap: Navigate to the Interior Options screen and enter RPO code ATT to replace the standard captain's chairs with the power-release 60/40 bench seat. Because you are not trying to force a separate luxury or air-suspension bundle, the standard, premium D07 Fixed Floor Console remains active. The system will accept this change immediately without triggering a warning message. 3)Apply Heavy-Duty Hauling Capability: Input RPO code NHT (Max Trailering Package). The commercial terminal will automatically bundle the required trailering hardware and software modules to support the diesel engine's maximum towing capacity. 5) Layer the Premium Tech and Glass: Separately add code C3U (Panoramic Power Sunroof) and code UKL (Super Cruise) to the order screen. 6) Run the Final Validation: Click the "Validate Order" button at the bottom of the interface.

Thank you for sharing! I reached out to the dealer of the cars you highlighted. They said the same thing. You cannot have 8 seater bench and MagRide/Adaptive suspension both.

I'm trying to confirm whether a 2026 Suburban 4WD can be factory-ordered with the second-row powerfold bench seat option (in place of standard captain's chairs) while keeping the standard Magnetic Ride Control. Multiple dealers have said the option isn't visible on their tools. Has anyone here either successfully ordered this config, or found an authoritative RPO code that confirms availability? Bonus points if you can post a build sheet or window sticker showing this combo.