Skip the auto shop - Our mechanics make house calls

Q: Battery light is on durign acceleration or on bumpy roads

asked by on

I have problems with the battery on my car. The battery light on the dashboard is on very often. It comes and goes depending on the road I am driving on or my speed. The battery light comes on if I accelerate or if I drive on a bumpy road. I cleaned the battery and checked the cables. Everything seems fine. The battery is one year old. Can you give me some advice?

A: When the battery light comes on in vehicles...

When the battery light comes on in vehicles it is due to the voltage falling below the required 12.6 volts. This voltage is required for all the vehicles’ electrical systems to work properly. The most common causes of the battery light being on intermittently are:

  • low output from the alternator
  • failing battery cable
  • the battery itself is failing

Any of these are common repairs on vehicles. The qualified technicians at YourMechanic can diagnose the cause of your illuminated battery light at your home or office.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

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: Front AC not blowing cold air

Hi there. Lack of cold air is a common issue for vehicle's to encounter when it comes to the AC. This lack of cold air is due to low refrigerant level in the AC system. An AC recharge would solve...

Q: Battery light staying on

If the battery light is still on, the chances are your battery might not have needed replacement. The battery light is simply an indicator for the whole charging system. A bad battery, bad connection, bad alternator, bad regulator, etc. are...

Q: Gas pedal unresponsive, then suddenly jerks the car forward - 2015 Nissan Rogue

Hello. The new electronic throttle systems are very sensitive to a driver using two feet to drive and if you are still touching the brakes and trying to accelerate it will not let you. This programming is due to all...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.