Skip the auto shop - Our mechanics make house calls

Q: Lock/unlock malfunctioning and sync system goes black

asked by on

Yesterday morning, my car would not lock for 15 minutes. Then later in the day, the locks would not unlock. I used the code on the outside door panel to get in and I called the sync people. They told me how to bypass the normal startup and that made it possible to drive home with the fob in a special place. I took my car to the dealership and another upgrade was performed or another master reset. Another problem is that my seats still do not heat and with my back trouble I need that. The entire sync system went black and it keeps stopping. When this happens, I pull over and wait a while. Then it begins to work again; however, after that it looks different. What needs to be done to get my car to properly function?

Hey there. There have been many complaints about this system. Unfortunately, I don’t have the repair information available for your vehicle because it is so new. Since your vehicle is still under warranty, I recommend you take it back to the dealership and insist that they make it right.

You can also try the following reset procedure:

  1. Delete sync from your phone’s connected devices
  2. With the vehicle running, go to the settings tab.
  3. On the next page, tap the bluetooth devices tab followed by the phone tab.
  4. On the right side of the screen, touch delete tab.
  5. Turn off your vehicle and open the hood.
  6. Remove the negative battery cable.
  7. Power down your phone for at least a minute. Then, turn your phone back on.
  8. Reinstall the negative battery cable.
  9. Start the vehicle and allow it to run while the system goes through its reboot procedure.
  10. Turn off the vehicle and open the door.
  11. Restart the vehicle.

If the problem persists, you should get in touch with the dealer and have this repaired as needed.

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: Doors will not lock - 2011 Toyota Camry

There is an electronic window motor module that operates the power windows and locks. Sometimes these can and will fail causing intermittent operation as you describe. This can also happen when wires short or are pinched. Many vehicles have wires...

Q: My car is only yielding 11km/liter - what should I do?

Hello. A 2016 Impreza 2.0 should yield 28 mpg city 37 mpg highway. If it is only yielding 11 KM/L at 120 KM/PH then there is likely an issue with the vehicle, as it should be yielding close to 15...

Q: LED adaptive headlights do not coordinate with steering angle

Not all vehicles will be equipped with the same options. The owner's manual is designed to cover all 2016 Lincoln MKS trim levels. This means there will be information in the manual that may not apply to your vehicle. If...

Related articles

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...
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...