Fitment notes: 12V auxiliary battery; main EV battery is 65 kWh lithium-ion traction battery
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Every control module on the 2022-2026 Chevrolet Bolt EUV — 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.
Drive Unit Control Module (DUCM)3.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Integrated with electric drive unit, front of vehicle under hood
🔧 GM SPS2 / Techline Connect
⚠️ Controls electric motor/generator; not a traditional ECM but serves equivalent role. Drive unit removal required for module access.
Battery Energy Control Module (BECM)2.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Under rear seat, mounted on top of battery pack
🔧 GM SPS2 / Techline Connect
⚠️ Primary powertrain controller for EV; manages battery pack, thermal system, and drive unit. Replacement requires battery isolation procedure and high-voltage safety protocols.
Heating Ventilation Air Conditioning Control Module (HVAC)2.5 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Behind center stack, integrated with HVAC unit
🔧 GM SPS2 / Techline Connect
⚠️ Controls electric heat pump system unique to EV. Calibration required for proper thermal management.
Electric Power Steering Control Module (EPSCM)2.0 hr R&Rsecurity gateway +0.5 hr▸ programming details
📍 Integrated with steering column assembly, below instrument panel
🔧 GM SPS2 / Techline Connect
⚠️ Steering angle sensor calibration required after replacement or steering system service.
📍 Under hood, near 12V auxiliary battery on right side
🔧 GM SPS2 / Techline Connect
⚠️ Manages DC-DC converter and 12V auxiliary battery charging from high-voltage system. EV-specific module.
Rear Vision Camera Module (RVCM)0.4 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Integrated with rear camera assembly, liftgate handle area
🔧 GM SPS2 or Autel
⚠️ Standard equipment. Camera calibration typically automatic; configuration may be needed for guidelines.
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 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD 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.