Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Chevrolet Volt L4-1.4L ElectFACTORY OEM SERVICE PROCEDURE
Battery Control Module: Locations
Wheels/Vehicle Underbody Component Views
Underbody - Hybrid/EV Battery Pack Assembly Components
1 - S15 Hybrid/EV Battery Pack High Voltage Manual Disconnect Lever
2 - A28 Hybrid/EV Battery Contactor Assembly
3 - E54 Hybrid/EV Battery Pack Coolant Heater
4 - B204A Hybrid/EV Battery Pack Coolant Temperature Sensor 1
5 - B204B Hybrid/EV Battery Pack Coolant Temperature Sensor 2
6 - K16 Battery Energy Control Module
7 - F115 Hybrid/EV Battery Pack Fuse Cover
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.