The battery light on and brake light
5 Answers
Jaun its possible your alternator is not charging, or your battery is going bad. Your battery should read 12.4 volts and should climb a few volts with car running...
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You want to take the car to auto zone or advanced auto and they will test your charging system for free...
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Why the battery light on and brake light on in the dash board!
The brake light probably means the brake fluid level is low. Check the master cylinder.
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Brake light may also be the E-brake may slightly be on.