In ERLC, collision is usually controlled through Roblox Studio settings or the game’s own map/object settings, not a single universal “turn on collision” switch. For normal Roblox Studio parts, you can enable it by selecting the part and turning CanCollide back on in Properties, or by using Collision Groups in the Model tab to allow players and objects to collide again.

What to do

  1. Open the place in Roblox Studio.
  2. Select the object, vehicle part, or map piece you want to affect.
  3. In Properties , make sure CanCollide is enabled.
  4. If collision groups are being used, open Collision Groups in the Model tab and set the groups so they collide with each other.

For ERLC specifically

ERLC often uses custom map and vehicle logic, so whether you can “turn on collision” depends on what exactly you mean: player collision, vehicle collision, or placeable object collision. Public discussion and update notes show features like Placeable Objects Collision Setting , which suggests some collision behavior is controlled by the game’s built-in options rather than a universal setting.

Quick check

  • If players are phasing through each other, the game may be using collision groups or a custom no-collision system.
  • If an object falls through the map, its CanCollide setting may be off, or it may need to be anchored too.
  • If you’re trying to change collision in someone else’s ERLC server, you may not have permission to do that from the client side.

Best match

If you mean Roblox Studio collision , turn CanCollide back on or fix the collision groups. If you mean ERLC in-game collision , look for the game’s own map/editor or placeable-object collision setting, since that behavior appears to be game-specific.

Would you like the exact steps for player collision , vehicle collision , or map object collision in ERLC?