# Battery and brake lights on again after alternator replaced

**URL:** <https://community.cartalk.com/t/battery-and-brake-lights-on-again-after-alternator-replaced/3184>\
**Category:** Maintenance/Repairs\
**Tags:** outback, batteries, brakes, subaru, lights, alternators\
**Created:** [August 16, 2007, 12:27pm UTC](https://community.cartalk.com/t/battery-and-brake-lights-on-again-after-alternator-replaced/3184 "2007-08-16T12:27:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bobbir](https://avatars.discourse-cdn.com/v4/letter/b/ea5d25/32.png) [@bobbir](https://community.cartalk.com/u/bobbir)\
**Post date:** [August 16, 2007, 12:27pm UTC](https://community.cartalk.com/t/battery-and-brake-lights-on-again-after-alternator-replaced/3184/1 "2007-08-16T12:27:35Z")

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My 2001 Outback lost power while driving home last week–brake and battery lights came on, tach and speedometer needles stopped working, then car lost power. A fresh battery got me to the shop where the alternator was replaced. Ten blocks after leaving the shop, the battery and brake lights came on again! I drove it 30 miles and checked the battery. It shows a full charge. Just bad lights? or is something else wrong?

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**Author:** ![willey](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@willey](https://community.cartalk.com/u/willey)\
**Post date:** [August 16, 2007, 1:30pm UTC](https://community.cartalk.com/t/battery-and-brake-lights-on-again-after-alternator-replaced/3184/2 "2007-08-16T13:30:25Z")

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Bring it right back to the shop… ASAP. It’s possible the new alternator is defective. I’ve seen it happen many times, I’ve replaced a alternator and the new one is junk right out of the box.

You need to get it back to the shop because it is a possibility that it is just a loose connection on the alternator.