Alternator

Normally the battery light does mean that the voltage is low but when it is accompanied by another light then there is normally something else wrong.

So, the first thing to do is check for codes and that will tell us if there is another system issue that we need to focus on first.

If not, then we can come back to the charging system.

Here is a guide that will help with checking for codes:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If the brake light came on the same time as the charging light, then I suspect we have a possible module or other control issue.

However, they may not be related in which case we need to check the level of the brake fluid.

Here is a guide that talks about this light as well:

https://www.2carpros.com/articles/brake-system-warning-light-on

So, let's run through this and check for codes and if there are none then we will pick one light and repair it and then move on.

Please let me know what questions you have.

Thanks