Skip the auto shop - Our mechanics make house calls

Q: Door won't unlock with key

asked by on

I just bought a car, it didn't come with any key fobs, just two keys. Both keys will start the car but neither will unlock it. There is only one lock on the car. Not even a trunk lock. Is there a problem with the key or lock? Anything I can do?
My car has 100000 miles.
My car has an automatic transmission.

A: It sounds like you all keys for the vehicle...

It sounds like you all keys for the vehicle had been lost and only the ignition key cylinder was replaced. If your keys do not work for the doors then you will need to have the [door lock cylinder replaced](https://www.yourmechanic.com/services/ignition-lock-cylinder-replacement in order to have the key both unlock the door and start the ignition.

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: speed guage stuck on 0 car will not pick up speed tranmission not shifting correctly and car cuts off sometimes at traffic lights

Hello. If the speedometer is not working correctly and it is shifting like this then the vehicle speed sensor is usually the problem. I would test this first. If the computer is not seeing a speed signal then it will...

Q: Every once in awhile it acts like it floods out

The symptoms you are experiencing sound very familiar to a vehicle with a faulty air temperature sensor or idle air control valve. The air temperature sensor can send a false value to the computer resulting in an improper air fuel...

Q: The fuel gauge moves up and down I never know how much gas I have

The fuel sending unit is in the fuel tank mounted to the fuel pump assembly. The sending unit is shorted or open and needs to be tested using a gauge tester or by removing it and measuring the resistance of...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.