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
  1. Home
  2. Questions
  3. My car will lock and unlock by itself.

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: Is it a blown head gasket?

Hello. If it leak shows up after 20 minutes of the vehicle running even after you put the k seal in you will still have to replace the radiator because the k seal isn't properly doing its job in fixing...

Q: After braking hard, the car shuts off

Hello. It is very hard to diagnose and issue like this without knowing a large variety of other factors. If nothing is wrong with the vehicle at this point, I would not worry about taking in your car. If you...

Q: Something broke in my transmission

Sounds to me that there is an issue with your slave cylinder. If it has a leak, either internally or externally, it will cause the clutch not to disengage. This can be determined by a mechanic who can inspect your...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...