Close unused apps, power-cycle the TV, remove apps you no longer use, and install the latest webOS update. Do not treat low memory as an invitation to repeatedly factory-reset the TV. Settings, General, Storage shows which apps use the most space, so remove those first.
What this covers
- LG webOS TVs showing low-memory notices, slow app launches or repeated app closures
What it does not cover
- ×USB storage capacity or a physically damaged main board
Try in this order
0 of 4 completedExit the current app and power-cycle
ReversibleClose the app, turn the TV off, disconnect power briefly and reconnect it to clear temporary memory.
Remove unused apps
Signs you outDelete apps you no longer use, starting with large games or rarely used streaming services. Keep credentials for any app you may reinstall.
Install the current TV update
ReversibleOpen Settings › Support › Software Update and install an available webOS release.
Escalate persistent low-memory behavior
ReversibleIf warnings return immediately with few apps installed, record the model and software version and contact LG support before a factory reset.
Evidence ledger
Sources behind this answer
Exact questions
Common questions about “LG TV shows a low-memory warning or closes apps”
What does low memory mean?+
The TV has too many apps or processes open.
Does clearing cache help?+
Yes, clear app or browser cache.
Which apps use the most memory?+
Streaming apps and the web browser tend to use the most. Close them after use and avoid leaving many open.
Can I free memory on an LG TV?+
Yes. Uninstall unused apps, clear the browser cache and restart the TV. Running out of storage causes similar warnings.
Is the warning permanent?+
No. It usually clears after closing apps and restarting.
How much memory does an LG TV have?+
TVs have limited memory compared with a phone, so heavy apps compete for it. Closing apps you are not using and restarting the TV occasionally keeps things running smoothly.
Should I use an external streaming device?+
If the TV's built-in memory keeps running out, an external streaming stick has more capacity for apps and reduces load on the TV. It is a practical fix for older models.
Do background apps count toward the warning?+
Yes. Apps left running in the background use memory even when you are not watching them. Close them from the recent apps view and restart the TV occasionally to keep memory free.