Fitment notes: H6 group may also fit; AGM required for start-stop system
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Every control module on the 2020-2026 Cadillac XT6 — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
📍 Engine compartment, driver side inner fender area, integrated with ABS hydraulic unit
🔧 GDS2/Techline Connect
⚠️ Brake system bleed required after replacement; automated bleed procedure via scan tool mandatory
Active Chassis Control Module (ACCM)1.8 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Under vehicle, mounted to frame rail or subframe, near front suspension
🔧 GDS2/Techline Connect
⚠️ Integrates adaptive cruise, magnetic ride, and stability control; multiple sensor calibrations required
Infotainment Control Module / Cadillac User Experience (ICM/CUE)1.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Behind center touchscreen display, accessible after removing center stack trim and screen assembly
🔧 GDS2/Techline Connect
⚠️ 2020-2021 use CUE system; 2022+ use updated ICM with wireless CarPlay/Android Auto; VIN and audio system configuration required
Body Control Module (BCM)1.5 hr R&Rsecurity gateway +1.2 hr▸ programming details
📍 Behind center stack, above transmission tunnel, accessible after removing center console trim
🔧 GDS2/Techline Connect + Security Access
⚠️ Controls all body functions; replacement requires VIN programming, option configuration, and all accessory relearns (windows, seats, mirrors, lighting)
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2026 Cadillac XT6 3.6L V6 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.