Every control module on the 2020-2026 Chevrolet Corvette — 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.
Transmission Control Module (TCM) 3.0 hr R&R security gateway +1.0 hr ▸ programming details
📍 Rear compartment, integrated with 8-speed DCT transmission
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ 8L90 DCT (dual-clutch); Security Gateway locked; extensive adaptive relearn required
Electronic Brake Control Module (EBCM) 2.0 hr R&R security gateway +0.8 hr ▸ programming details
📍 Front compartment, passenger side near brake master cylinder
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Integrated ABS/Traction/Stability/Performance Traction Management; brake bleeding and calibration required
Electric Power Steering Control Module (EPSCM) 2.0 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Front compartment, steering column area
🔧 GM SPS2 via MDI2
⚠️ Steering angle sensor calibration required; may require alignment after replacement
Heating Ventilation and Air Conditioning Control Module (HVAC) 2.0 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Behind center stack, integrated with climate control interface
🔧 Autel IM608/MS919 or GM SPS2
⚠️ Dual-zone climate control; basic configuration possible with aftermarket tools
Infotainment Control Module (ICM) 1.8 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Center stack, behind 8-inch or 10-inch touchscreen
🔧 GM SPS2 via MDI2
⚠️ Chevrolet Infotainment 3 system; VIN programming required; Bose audio integration
Body Control Module (BCM) 1.8 hr R&R security gateway +1.0 hr ▸ programming details
📍 Front trunk (frunk), driver side
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Security Gateway locked; VIN programming required; controls all body functions
Surround Vision Camera Module (SVCM) 1.5 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Front trunk, integrated with camera system
🔧 GM SPS2 via MDI2
⚠️ Multiple cameras (front, rear, side); camera calibration and alignment required
Instrument Panel Cluster (IPC) 1.5 hr R&R security gateway +0.8 hr ▸ programming details
📍 Instrument panel, behind digital display
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ 12-inch digital display; VIN programming and mileage transfer required
Door Control Module (DCM) 1.5 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Inside each door panel (left and right)
🔧 Autel or GM SPS2
⚠️ Controls windows, locks, mirrors; basic configuration with aftermarket tools
Engine Control Module (ECM) 1.5 hr R&R security gateway +1.0 hr ▸ programming details
📍 Rear compartment, driver side near engine
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Security Gateway authentication required; LT2/LT6 engines; VIN and theft deterrent programming mandatory
Gateway Module (GMLAN Gateway) 1.5 hr R&R security gateway +0.8 hr ▸ programming details
📍 Front trunk, center area
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Security Gateway function integrated; manages all CAN network communication; critical security component
Forward Collision Alert / Adaptive Cruise Control Module (FCA/ACC) 1.5 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Front fascia, behind grille (center)
🔧 GM SPS2 via MDI2
⚠️ Radar sensor; requires precise alignment and calibration; ADAS functionality
Sensing and Diagnostic Module (SDM) 1.2 hr R&R security gateway +0.8 hr ▸ programming details
📍 Center tunnel, below center console
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Security Gateway locked; VIN programming required; disable SRS before removal
Fuel Pump Control Module (FPCM) 1.2 hr R&R aftermarket tool +0.2 hr ▸ programming details
📍 Rear compartment, near fuel tank
🔧 Autel or GM SPS2
⚠️ Controls fuel pump speed; basic relearn with aftermarket tools
Magnetic Ride Control Module (MRCM) 1.2 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Rear compartment, passenger side
🔧 GM SPS2 via MDI2
⚠️ Magnetic Ride Control 4.0; Z51 package; damper calibration and ride height sensor relearn required
Remote Control Door Lock Receiver / Theft Deterrent Module (RCDLR) 1.0 hr R&R security gateway +0.8 hr ▸ programming details
📍 Front trunk, passenger side
🔧 GM SPS2 via MDI2 + Security Gateway unlock
⚠️ Key fob programming required; theft deterrent relearn; Security Gateway locked
Headlamp Control Module (HCM) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Front compartment, integrated with each headlight assembly
🔧 GM SPS2 via MDI2
⚠️ Separate modules for left/right; LED matrix headlights; adaptive lighting calibration required
Parking Assist Control Module (PACM) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Front trunk, center area
🔧 GM SPS2 via MDI2
⚠️ Front and rear ultrasonic sensors; sensor calibration required
Seat Control Module (SCM) 1.0 hr R&R aftermarket tool +0.2 hr ▸ programming details
📍 Under driver and passenger seats
🔧 Autel or GM SPS2
⚠️ Controls power seat adjustment, heating, ventilation; memory seat programming
OnStar Vehicle Communication Interface Module (VCIM) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Front trunk area, near BCM
🔧 GM SPS2 via MDI2
⚠️ 5G capable (2024+); OnStar and connected services; subscription reactivation required
Wireless Charging Module (WCM) 0.8 hr R&R no coding
📍 Center console, integrated with charging pad
⚠️ Plug-and-play; no programming required
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?
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