Brake Fluid

[2003S]

As I pulled into work this morning, the dash alternated between "Brake Fluid Low" and "PSM Disabled" -- Am I right in assuming the former probably causes the latter? Didn't have chance to open the frunk & check the level, was running late for a call.

Assuming I just need to add fluid, which is the right one? Pelican sells:

• ATE Super
• ATE Gold
• ATE DOT 4
• ATE SL.6 DOT 4
• Pentosin DOT 4

Thanks