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.
Inertia Switch
The inertia switch is located at the center rear of the spare tire well. The inertia switch components are contained in a glass filled polyester case. These components include a magnet ball target plate, movable electrical contact and a reset lever.
When impact forces exceed the magnetic force that retains the ball, the ball separates from the magnet and moves toward the target plate. When the ball hits the target plate, it triggers the movable electrical contact that opens the electric circuit. When this circuit is opened, the high and low pressure pumps no longer receive battery current and stops pumping.
With the fuel supply interrupted, the engine stops running and cannot be restarted until the inertia switch is manually reset. To reset the switch, open the liftgate and fold the floor covering back for access to the spare tire well. Press button on top of the inertia switch. See Fig 1 .
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.