Skip the auto shop - Our mechanics make house calls

Q: My brake light and battery light turned on

asked by on

I was driving and my battery and brake light turned on. I kept driving and eventually they turned off somehow. I didn't drive my car the whole weekend until today and the lights came back after driving for a couple of miles. I revved the motor and the lights were gone again so I don't know if it is a fuse or my alternator is going bad or what? The lights just keep turning on and off at the sane time. I'm just scared my car is gonna leave me stranded in the middle of the freeway

My car has 100900 miles.
My car has an automatic transmission.

Hi there, thanks for writing in to YourMechanic.com about your 2008 Nissan Altima. When the brake light and battery light both illuminate, it’s sometimes caused by an electrical relay or damage to a sensor which triggers an error code that triggers these lights. The best way to find the source of the issue, is to contact one of our mechanics and ask them if they can complete a battery light is on inspection. Hope this helps and best of luck.

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: Engine squeaks when car is on.

The noise you may be hearing is the belts need to be adjusted or one of the pulleys are going bad. The only way to tell would be to listen to it. If you are going on a long trip...

Q: Battery Light

There is probably a fault in the charging circuit and or the connections. The charging system output should be tested and if you are noticing this problem (the warning light) intermittently but it is nevertheless quite repetitive, it's possible to...

Q: Car Stalls in 2nd Gear after Starting

Test/evaluate shift solenoid(s) on transmission. You can probe for resistance on solenoid coil through the wiring harness but even if within spec, solenoid mechanism could still be sticky or intermittent. Faulty solenoids are a common cause of this type of...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...