Neutral Safety Switch (Inhibitor Switch)
The neutral safety switch only lets the engine start in park or neutral.
What is Neutral Safety Switch (Inhibitor Switch)?
It is found on automatic transmissions. Faults stop the engine from starting. It may also control reversing lights. If the engine only starts in neutral but not in park, the switch or selector cable adjustment is a typical suspect. The switch is often combined with the transmission range sensor on modern cars.
How it works
The switch reads the selector position.
Why it matters for your car
Adjustment may help. Do not bypass it.
Other terms
- API Oil Specification
- Automatic Transmission
- Booster Seat (Child Booster)
- Car Alarm
- Carbon-ceramic Brakes
- Centre Of Gravity
- CO₂ Emissions (G/km)
- Diagnostic Trouble Code (DTC)
- Dual-mass Flywheel
- eCall (Emergency Call)
- Horn
- Misfuelling (Wrong Fuel)
- NOx (Nitrogen Oxides)
- Paint Etching (Bird Dropping And Sap Damage)
- Readiness Monitors
- Remote Engine Start
- Shock Absorber
- Sunroof Drain
- V Engine (V6, V8, V12)
- Valet Mode