Q: Do you have to have the mechanical key in the fob to start the car

asked by on September 24, 2017

I lost my blade key and I was wondering if the fob will still start the car without it.

My car has 108000 miles.
My car has an automatic transmission.

Car is hard to start Inspection $79.99 - $99.99 Get a Quote

Hello, thank you for writing in. If the vehicle is equipped with a keyless entry and start system, then yes. You should still be able to start the car without the piece of metal they give you in the key fob to use as a key when the system fails. If your vehicle is not equipped with a push to start system, then no. The computer in the keyless entry and push-to-start systems reads a computer chip in the key fob, and the vehicle will run as long as it detects that chip.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $65/hr

What others are asking

My Mercedes Benz A-Class -160A start and dies

Wow! That's quite a list! It can be confusing when you get a whole library of codes like that.There are several things that can make that happen. One is if the car was operated with a dead battery. Another is...

2007 Mercedes-Benz S550 stalls and then turns itself off

If you start the 2007 Mercedes-Benz S550 using the keyless go system and the vehicle is acting erratic, then it may be due to this module being erratic from the battery voltage dropping below a certain level and causing it...

The dome and the rear brake lights are not working.

Hi there. It is very rare that these two circuits affect each other. It can be a failure in the SAM module if both of these problems started at the same time, but most of the time they are separate....

Brake lights not working

The stop lamp switch most likely failed and is not making contact internally. The switch may need to be adjusted or replaced. I recommend seeking a technician, such as one from YourMechanic, to come and test your vehicle's brake lights...

2004 mitsubishi endeavor overheating while driving, cools while idling or in traffic

Based on your description it sounds like the overheating is accompanied by a coolant leak. Coolant leaks can be either a cause OR a consequence of overheating. Be sure not to drive the car if it is overheating because overheating...

Problem with the central door lock - 2006 Mercedes-Benz B200

Hello. The inner door panel will have to be removed before the actuator can be removed properly. There are also connection rods to the actuator that need to be removed as well. My suggestion would be to have a certified...

No fuel to cylinders

Hi There, It sounds like you may have a fuel pressure or injector problem resulting from dirty or clogged fuel injectors. In the case of low fuel pressure, the system may not be primed well enough to get the proper...

Something is draining my battery, both battery and alternator have been checked and are working fine.

Hi. Your diagnosis is spot on! If the alternator and battery are good, something is causing a pretty significant drain on the battery, and this needs to be identified. This problem can be diagnosed by connecting an ammeter to the...

I have a 2004 Pontiac bonneville, and air blows cold on the passengers side of the car, but not on the drivers side. Any ideas?

Hi there. There is a blend door that keeps the air blowing on the cold and hot sections separate. The blend door maybe stuck between the evaporator and the heater core causing the temperature difference. Also, the air duct on...

Related articles

5 Essential Things to Know About Your Car's Anti-Theft Device
Your Your car’s anti-theft device is installed in an effort to help protect your investment from thieves. Most cars today include a variety of these devices and systems that not only protect the car, but also deter theft in the...
Is a Keyless Push-Button Ignition More Reliable?
Vehicle Vehicle starting systems have evolved significantly since their inception. When automobiles were initially introduced, you had to manually crank the engine over with a handle on the front of your engine compartment. The next phase involved a lock and...
Top 10 Factors to Consider When Buying a Luxury Car
The The idea of owning a luxury car is appealing. The glossy paint, swoopy lines, and prestigious badges speak of the owner’s success in life, while the interior opulence offers scented leather surfaces, high-tech telematic devices, and all the creature-comfort...