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.
Reverse Lockout Control
The reverse lockout system is a safety device that prevents an inadvertent shift from a forward or neutral gear into reverse. The system consists of the following components:
- Reverse lockout solenoid.
- Dash Integration Module (DIM).
When the ignition switch is turned to ON position, battery voltage is supplied to the feed circuit of the reverse lockout solenoid. The DIM supplies the ground for the control side circuit. When the DIM determines that the ignition is ON and the vehicle has been traveling at over 5 MPH for 15 seconds or longer, it grounds the control circuit of the reverse lockout solenoid. This energizes the reverse lockout solenoid and mechanically prevents the gearshift lever from being moved into the Reverse position.
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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.