Q: When lights come on, radio goes off and visa versa

asked by on

Recently the battery light in my truck came on. Last night while driving, when I turned on my lights, the radio independently turned off. After stopping, I turned the lights off and the radio turned back on. My truck starts just fine and it has given good performance; I take good care of it. The radio is a stock radio. Do you think that the alternator or the battery are causing this problem with the lights and the radio?

Hello. It sounds like the battery and/or alternator is causing the electrical problems that you are experiencing. The battery light coming on in the dashboard is an indication that there is a problem with the battery and low voltage may cause the vehicle to do some crazy things. I would recommend that you have a certified technician, like one from YourMechanic, come and complete an inspection of the electrical system in order to pinpoint the problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. When lights come on, radio goes off and visa versa

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: Car not starting in temperatures over 80 degrees

Hi there. This can be a common issue that vehicles encounter when the temperature outside is warm or if there is a sticky starter solenoid. The solenoid will stick even if sufficient current is applied to its switch. I'd suggest...

Q: ABS, fuel, and temperature gauge lights on when start car

Hello. I think that you should have your alternator retested by a different mechanic. The alternator cannot possibly be tested correctly with a dead battery. If the vehicle is not running, the alternator will not do anything. If the battery...

Q: AT oil temp light flashing 9 long blinks and 3 short which means rear speed sensor. what is that on a 05 subaru wrx

Typically, this refers to the output shaft speed sensor, however depending on what you are reading in terms of the research, various literature will call it different things or refer to it differently. If you need additional help with this,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...