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 - Installation
INSTALLATION
1. Clean and inspect the battery case, terminal posts and battery cable clamps, Battery Cleaning and Inspection.
2. Position the battery (1) into the vehicle. Ensure that the battery positive and negative terminal posts are correctly positioned. The battery cable terminal clamps must reach the correct battery terminal post without stretching the cables.
3. Install the battery hold down (4) by sliding it back and downward in the battery tray slots (3). Install the battery hold down bolt (2).
CAUTION: Be certain that the battery cable terminal clamps are connected to the correct battery terminal posts. Reverse battery polarity may damage electrical components of the vehicle.
4. Connect the battery positive cable terminal clamp (8) to the battery positive terminal post. Tighten the terminal clamp pinch-bolt hex nut to 5.5 Nm (50 in. lbs.).
5. Connect the battery negative cable terminal clamp (4) to the battery negative terminal post. Tighten the terminal clamp pinch-bolt hex nut to 5.5 Nm (50 in. lbs.).
6. Apply a thin coating of petroleum jelly or chassis grease to the exposed surfaces of the battery cable terminal clamps and the battery terminal posts.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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