Skip the auto shop - Our mechanics make house calls

Q: My car will lock and unlock by itself.

asked by on

My car will lock and unlock itself while I'm driving and will even continue to after I take out the key. I'm seriously worried it's draining my battery. thank you

My car has 100 miles.
My car has an automatic transmission.

I initially would have your battery and alternator tested. Next I would try leaving the key fob away from the vehicle to ensure that is not the cause. If the battery, alternator and key fob do not fix the issue, you may have an issue with a door switch thinking that the door is open. An advanced scan tool will be needed to read the body control module which will help find your problem. You should contact a professional technician, such as one from YourMechanic, who has the appropriate tools and can diagnose the problem for you.

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

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: Engine problem - 2009 Toyota FJ Cruiser

Hello. A knocking sound when starting from a stop in second gear is to be expected. This sound will come from either the motor or the transmission. I don't recommend starting off in second gear. It isn't good for your...

Q: Vehicle won't start, once it's jump started it only stays running until you turn it off, then it work start again without jumping.

Hi there. There could be two problems here. It is possible that your battery is bad and will not take a charge from your alternator while driving. In that case every time you shut your car off you will not...

Q: Over heating, white smoke coming out the exhaust, and no heat just cold air blowing

Hi there. In most cases, a bad or malfunctioning heater is accompanied by an overheating problem. However, if you're temperature gauge is HOT and you've got white smoke blowing from the exhaust, this can be an indication of coolant inside...

Related articles

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...