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.
2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Battery System - Description
DESCRIPTION
This vehicle is equipped with a single 12-volt battery. All of the components of the battery system are located within the engine compartment. The battery system for this vehicle covers the following related components:
- Battery (5) - The storage battery provides a reliable means of storing a renewable source of electrical energy within the vehicle.
- Positive Battery Cable (8) - The positive battery cable connects the battery positive terminal post to the vehicle electrical system, starter and alternator.
- Negative Battery Cable (4) - The negative battery cable connects the battery negative terminal post to the vehicle electrical system through body, chassis and engine grounding points.
- Battery Holddown (6) - The battery holddown hardware secures the battery in the battery tray in the engine compartment.
- Battery Tray (7) - The battery tray provides a secure mounting location in the vehicle for the battery and an anchor point for the battery holddown hardware.
For battery system maintenance schedules Maintenance. Service and Repair for the proper jump starting procedure. The battery must be fully-charged before any battery system diagnosis or testing procedures can be performed.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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