Skip the auto shop - Our mechanics make house calls

Q: How do I change modes with the engine start/stop switch?

asked by on

How do I change modes with the engine start/stop switch?

A: If your car is equipped with the smart key ...

If your car is equipped with the smart key system, it means that you have a start/stop switch rather than a conventional ignition switch. This allows you to crank the engine from all positions by pressing the button (with your foot on the brake). However, you still have all the regular ignition switch positions. To change modes/positions, just press the start/stop button briefly. Here’s what each mode does:

  • Off: The engine is off and no accessories can be used other than your hazard lights.

  • Accessory: In this mode, you can listen to the radio and some other components can be used. The light on the start/stop switch should be amber.

  • On: In this mode, all of the car’s electronics will activate. The light on the switch should be amber.

Tips

  • Press the start/stop button with your foot on the brake to crank the engine in any of these modes.

  • If you don’t put the car in park before shutting off the engine, the start/stop switch will default to accessory mode.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Water pump

The 5.7 L engine on the 2007 Toyota Tundra has a timing chain, and the 4.7 L engine has a timing belt. If you have the model with a 4.7 L engine, you will want to purchase a timing...

Q: Car died, but restarts immediately

Many different faults can cause the vehicle to shut off while running like this. The most common problems for this is the ignition switch, battery cables, intermittent electrical issue, wiring fault, or the battery itself. These kind of issues can...

Q: What does the service due Warning Light mean?

The service due Warning Light is located on the instrument panel. This light illuminates to remind you that it is time to service your vehicle. When the service due Warning Light appears, it does not mean that anything is wrong...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...