Radio still on when car off

Why does my radio stay on when I turn my car off?

Hello. If this is the factory radio then you more than likely have an issue with the retained accessory power system. This is what allows the system to retain power when the key is off until the door is open. It may be a relay failure or a failure in the module that controls this.

Why doesn’t my radio turn off when I turn my car off?

If your key or ignition cylinder are especially worn, you may be able to remove the key when the switch is still in the accessory or on position. To fix this problem, you’ll need to make sure that the ignition switch is actually in the off position when you remove the key. That should allow the radio to turn off.

Does leaving the radio on drain the car battery?

In theory, leaving the radio on while the engine is off could drain the car battery. However, radios usually don’t use a lot of power, so battery drainage is more likely to be caused by other things such as lights, fans and heaters.

How long can you listen to the radio with the car off?

If you have a healthy battery, that is usually true; you can listen to the radio for two or three hours without running the car battery down, and when you’re done, you should be able to start the car.

Why does my radio shut off randomly?

If your sound cuts off, or the head unit turns off intermittently, when you’re driving down the road, the problem is usually in the car stereo wiring. … When a power or ground connection is loose, driving over bumpy roads — or even just driving at all — can cause a connection to break or short.

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Should you turn off radio before turning off car?

If your car radio won’t play music unless the keys are in the ignition then switching it off when parking will not make any difference to the battery drain. However, if your radio is wired to continue to play when the keys are removed then do switch it off to prevent excessive battery drain.

What would cause a car to not turn off?

If the engine continues to run just as before you turned it off – as if you hadn’t turned it off at all – your ignition and fuel system are not shutting down. In that case, your car has an electrical problem that needs to be addressed. Either your ignition switch element or a power relay needs to be replaced.

When I turn on my headlights my radio light goes off?

If your dash lights at night are dim as well, then your dimmer switch is turned down. If your dimmer switch is all the way down, then when the lights come on at night, the radio will go to that setting and you won’t be able to see it in the daytime.

Why is my radio draining my car battery?

There are four main reasons that can cause battery drain

If your charging system isn’t working properly, your car battery can be draining even when you’re driving. If your lights, radio, and other things are running off your alternator, your car battery will drain and you could end up with car battery failure.

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How long should I leave car running to recharge battery?

If your car does start, let it run for a few minutes to help charge the battery further. Unhook the clamps in the reverse order of how you put them on. Be sure to drive your car for about 30 minutes before stopping again so the battery can continue to charge. Otherwise, you might need another jump start.

How long does car battery last engine off?

about 2 hours

Is it bad to start car with AC on?

Dear Car Talk:

It’s not harmful at all, Stanley. … So when you turn the key to crank the engine and start the car, the AC, the radio and virtually every other electrical device is shut off anyway. That allows the maximum amount of current to be directed from the battery to the starter motor, where it’s needed.

How long can I sit in my car with the AC on?

But setting my environmental preferences aside, you can let any car idle with the AC on for a long time without doing any harm. As long as the cooling system is working properly, you should be able to sit in any modern car you buy and let it idle indefinitely. Or at least until you run out of gas.

Does ACC mode drain your battery?

Yes it will. Most cars now have DAB radios and these will draw a lot of power and will easily drain the battery completely in two hours. … The ‘Acc’ position on your ignition switch is designed to only supply power to limited items such as the sound system and often the fan.

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