The red key warning light means there is a security error code. This light illuminates when the vehicle control modules see the ignition turned with a key that is not programmed to the vehicle or when there is an error within the security protocol of the vehicle’s security system. In most cases, the vehicle will not start when the red key warning light is illuminated. It will have to be towed to a repair facility capable of programming and servicing the security system of your
specific vehicle. What causes the red key
warning light to come on? My car wouldn’t start and the red key warning light was on but now it does, what’s wrong?  At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car. At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car. Key fobs have come a long way since they were first introduced. Originally, they were designed to unlock the doors with the press of a button. Nowadays, many security systems are capable of doing much more. Some cars are able to sense when the driver is approaching the vehicle with the key and doors will unlock automatically. Another addition to this safety system is remote keyless ignition, which allows you to start the car without inserting the key anywhere. The key sends out a coded radio signal to let the car know that the correct key is being used. What the key not in vehicle warning light meansThe keyless entry system may differ from one manufacturer to another, so read through the owner’s manual for more information on how your specific keyless system works. Cars equipped with keyless ignition will have a warning light on the dash to let you know if the correct key fob hasn’t been detected. Some of these systems may also let you know when the correct key has been detected and you can start the engine. Typically, the warning light will be orange or red if the key isn't detected, and a green light to let you know if the key is in range. If the battery dies in the key fob, it won’t be able to communicate with the car and you won’t be able to start the car. Try replacing the batteries in the fob if this warning light comes on even when you have the right key with you in the vehicle. If a new battery doesn’t fix the issue, it is possible that the key has lost it’s programming and is not sending the correct code to start the vehicle. There is a procedure to force the key to relearn the correct code so you can start the car again. This procedure will vary between different models and some may require a diagnostic test to be performed. Is it safe to drive with the key not in vehicle warning light on?While the car should operate normally, you may not be able to restart the engine if you turn it off. If the key fob battery is low, there should be a backup process to start the vehicle so you can still use it. If the code has been lost, may need to forcefully re-program the key. In this case, it may be necessary to go to the dealership where they have the equipment to perform the procedure. If your key fob doesn’t register correctly, our certified technicians would be able to help you identify the issue. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details What does the key light mean on the car?This light's purpose is to assure you that the security systems equipped on the vehicle are operational. It should blink any time the ignition is placed in the OFF, LOCK, or AUTO ACC positions.
What does a red blinking key light mean?This is an indicator for the security system. It lets you know the vehicle immobilizer is armed, and that the vehicle will not start without the proper key (yours).
What does Intelligent key warning light mean?Another consideration when the Nissan intelligent key warning light stays on to take into account is to see whether or not your key fob is sustaining damage. You might need to replace the key fob as a result of this. There is also a likelihood that your key fob hasn't been connected to the car yet.
What does yellow car with key symbol mean?This one, which is an image of a key with a line drawn through it in yellow/amber, indicates that the key fob is not present or is malfunctioning. So, if the key fob is present, have your dealer or a locksmith repair or replace it.
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What does the key warning light mean
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