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Every control module on the 2024-2025 GMC Sierra EV Denali Edition 1 — 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.
Battery Energy Control Module (BECM)8.5 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Inside battery pack enclosure, center of underbody between frame rails
🔧 GM SPS2 via MDI 2
⚠️ Ultium battery management system. Requires battery pack removal for access. VIN and battery serial pairing mandatory.
📍 Integrated within each headlamp assembly (left and right)
🔧 Autel MaxiSys or GM SPS2
⚠️ LED matrix headlamps with adaptive lighting. Aim calibration required after replacement.
Seat Control Module (SCM)0.5 hr R&Rrelearn only +0.1 hrwith power seats▸ programming details
📍 Under driver seat (left) and front passenger seat (right)
🔧 GM Tech 2 or Autel
⚠️ Memory seat positions stored in BCM; relearn procedure via scan tool.
Fuel Pump Control Module (FPCM)no coding
📍 Not applicable
⚠️ Battery electric vehicle; no fuel system.
Transmission Control Module (TCM)no coding
📍 Not applicable
⚠️ Single-speed reduction gear; no traditional TCM. Shift logic integrated into TPIM.
Transfer Case Control Module (TCCM)no coding
📍 Not applicable
⚠️ Dual-motor AWD system; no mechanical transfer case. Front/rear torque distribution managed by TPIM.
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 2024 GMC Sierra EV Denali Edition 1 Dual Motor Electric and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.