🌍 International coverage, work in progress. This European-market vehicle is part of our hand-curated international catalog. We are filling in labor times, torque specs and fluids as fast as we can verify them, so some numbers may be missing or marked estimated for now. Do you work on these vehicles in the EU, Russia, or the JDM scene? Help us get it right: send real shop times or corrections to [email protected], or request the data you need and it joins the verification queue.
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Every control module on the 2020-2026 Cadillac CT4 — 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.
Electric Power Steering Control Module (EPSCM)2.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Integrated into steering column assembly or steering gear
🔧 GM Techline Connect + MDI2
⚠️ Steering angle sensor calibration required; may require column removal depending on configuration
Body Control Module (BCM)1.8 hr R&Rsecurity gateway +1.2 hr▸ programming details
📍 Behind instrument panel, driver side kick panel area
🔧 GM Techline Connect + MDI2
⚠️ Controls all body functions; replacement requires extensive configuration of options and accessories
⚠️ Memory seat positions lost; customer must reprogram preferences
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 CT4 2.0L Turbo I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years.