Q: Ran car in water will not start. Says I key system error

asked by on

I drove thru a deep puddle and car shut off completely. I then got out and punched it out of water. Now car won't start. Dash lights come on but key fob not working. Neither is any power to the seats and doors. Have a alert that says I key sestem error.

My car has 33500 miles.
My car has an automatic transmission.

Water may have infiltrated wiring, terminals, or components. If the vehicle is not even starting (no starter motor operation), the recommended service to pinpoint the cause is a no start diagnostic. I would suggest beginning there and then once the car is running if additional issues remain in other vehicle systems, due to water intrusion, those can be dealt with as well. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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
  1. Home
  2. Questions
  3. Ran car in water will not start. Says I key system error

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: How do you open and close the windows with the key?

While you can use your power window switch to operate the windows on your car from the inside, you can also use the key to open or close them from the outside. This can be helpful if you forgot to...

Q: When hitting a puddle, car died & had buzzing noise

Hi. Thanks for writing in about your 1996 Nissan 240SX. It is likely that you have some stationary water on top of one of the circuits or inside of one of the connectors causing the fuses to blow. I wouldn't buy...

Q: I lost my car keys. And I'm 4 hours away from home - I don't know what to do

Unfortunately, if you do not have a replacement or a spare key, you will need to have the car towed to a Ford dealership to purchase a replacement key and have it programmed to your vehicle.

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...