Mass Effect Andromeda's Elaaden Vault is a very effective way to raise the planet's viability, so you should pay the dungeon a visit as soon as you can if you hope to make the surface habitable.
Before you can access it, however, you'll need to handle the Elaaden Monoliths and their glyph locations and puzzles first, which we'll explain in detail here.
Elaaden Monolith and Glyphs
Only two of the towers have puzzles to decode, and the trick is actually getting to the glyphs. Look for smaller terminals on the platforms near the larger ones and use them to raise some columns you can use to reach the inaccessible areas.
Want more help? Our Mass Effect Andromeda walkthrough and guide provides steps to completing every main mission, and our on-going Remnant Decryption puzzle solutions can help with the many Sudoku-like challenges the game can throw at you. Meanwhile, we can help with Memory Trigger locations, Architect locations and the hidden Fusion Mod of Adrenaline, as well as helping you decide on the many Mass Effect Andromeda Romance options for both male and female Ryder.
Enter the vault and use the gravity well to descend. Activate the terminal and five smaller ones will appear near the door. Interact with the right hand terminal, and then the one to its left, and the door will open.
Once inside the main room, activate the terminals on the right hand side of the upper platform to raise a few sets of columns, then jump across to the two terminals on the other side and activate those to raise an additional column in the centre.
Activate that, then return to the main platform and jump across to the far side.
Take out the Remnant patrolling the area, use the terminal on the upper level near the main door, then head back to the main platform - there's now a path across to the console.
Activate it and then beat a retreat before the cloud gets you!