Q: Theft deterrent Light on but car starts but unable to control windows or unlock door.

asked by on October 20, 2017

Car starts and drives perfect but theft deterrent light is on dash while driving I am unable to lock the doors from the driver side or control the windows to let up or down. Radio and everything else works.

My car has 140000 miles.
My car has an automatic transmission.

Random problems like you are having is due to lack of communication from electrical connections fretting corrosion in one or more connectors throughout the cars modules. You will need to have the systems scanned be put on connector to see what module is not communicating and then the connectors can be cleaned and a corrosion inhibitor can be put on connections to stop the corrosion from returning.

Was this answer helpful?
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

can passenger airbag deploy if there is no passenger on the seat?

Hello, thank you for writing in. The passenger airbag is capable of going off without a person in the seat. Typically they are equipped with a switch that will let you turn the passenger airbag on or off at your...

The car won't start unless it sits for over four hours

Hello there. A few possible faults could cause this type of intermittent no start condition. The most common would be a battery, starter, battery cables, fuel pump, fuel injector, or a wiring issue. This type of failure indicates a fault...

How often should I get my spark plugs replaced in my 2014 Chevrolet Spark

Hello. GM recommends that you have the spark pugs replaced ever 97,500 miles. This is part of their normal maintenance schedule. If you need to have this service done, consider YourMechanic, as a certified mechanic can come to you to...

Related articles

The Best Used Cars to Buy if You're Hauling a Horse Trailer
Horse Horse owners need a vehicle with towing capacity. Depending on the size of your trailer and the weight of your horse or horses, you probably won’t be able to get away with less than a 3,000-pound towing capacity, and...
2012 Toyota Tundra vs. 2012 Chevrolet Silverado: Which One Should I Buy?
Large work trucks are meant for one thing: work! These vehicles are rough and ready, and can handle nearly anything you throw at them, with the exception of a car pool. While they offer two or four door options, you...
The Best Used Cars to Buy If Safety is #1
Maybe Maybe you’re a parent buying the first car for your teenager, or perhaps you’re a new parent and the safety of your little one is of the utmost importance. Or perhaps you're a safety-minded individual looking to make a...