Quick Summary An August Smart Lock that does not respond to Google Home voice commands or appears as unavailable in the Google Home app has lost its integratio…
Quick Summary
An August Smart Lock that does not respond to Google Home voice commands or appears as unavailable in the Google Home app has lost its integration link between the August cloud and Google Home. This happens when the August account credentials change, when the Google Home app loses its connection to the August service, when the lock's Wi-Fi connection drops, or when the August app's Google Assistant skill has been revoked. This guide covers every failure mode for August Wi-Fi locks (August Wi-Fi Smart Lock, August Smart Lock Pro with Connect bridge) and Google Home.
How August and Google Home Connect
The connection chain is: Google Home → Google Assistant → August cloud → August lock. If any link in this chain breaks, voice control stops working. The most common break point is the August-to-Google link.
Step 1: Check the Lock's Wi-Fi Connection
Google Home can only control August locks that are online. If the lock has no Wi-Fi connection, Google Home will report it as unavailable. August app → tap the lock → check the connection status indicator. A green Wi-Fi icon means connected; grey means offline. If offline: check that the August Connect bridge (for older models) is plugged in and showing a solid green LED. For the August Wi-Fi Smart Lock (4th gen), check that the lock itself is within range of your 2.4 GHz Wi-Fi network. Restart the August Connect bridge (unplug for 10 seconds, replug) and wait 60 seconds for the lock to reconnect. If the lock still shows offline in the August app: resolve the Wi-Fi issue first before troubleshooting Google Home. See the article "August Smart Lock Not Connecting to Wi-Fi" for detailed Wi-Fi troubleshooting.
Step 2: Relink the August Service in Google Home
The most reliable fix for Google Home not controlling August locks is to unlink and relink the August service. Google Home app → tap your profile icon (top right) → Assistant settings → Home Control → scroll to find August Smart Locks → tap the three-dot menu → Unlink. Confirm the unlink. The August lock will disappear from Google Home. Wait 30 seconds, then relink: Google Home app → + → Set up device → Works with Google → search for August → tap August Smart Locks → sign in with your August account credentials. After relinking, the lock should appear in Google Home within 60 seconds. Assign it to the correct room.
Step 3: Fix Voice Unlock PIN Issues
Google Home requires a personal unlock PIN for voice unlock commands as a security measure. If the PIN is not set or has been forgotten, "Hey Google, unlock the front door" will fail. Google Home app → tap the lock tile → Settings → Lock settings → Voice unlock PIN → set a 4-digit PIN. When using voice unlock: say "Hey Google, unlock the front door" and Google will ask for your PIN before unlocking. Note: voice locking ("Hey Google, lock the front door") does not require a PIN and should work without this step. If you do not want to use a PIN: you can disable the PIN requirement, but this is a security risk as anyone near a Google speaker can unlock the door.
Step 4: Check Google Account and August Account Matching
The August service in Google Home must be linked to the same August account that owns the lock. If you have multiple August accounts (e.g., a personal account and a shared account): ensure you linked the correct account in Google Home. August app → Settings → Account → note the email address. This must match the account you used when linking August in Google Home. If they do not match: unlink August from Google Home (Step 2) and relink with the correct account.
Step 5: Fix Google Home App Issues
If the lock shows as available in Google Home but voice commands do not work: Force-close the Google Home app and reopen it. Try the command from a different Google device (e.g., a Google Nest speaker instead of your phone). If it works on another device, the issue is with your phone's Google Home app. Check that Google Assistant is enabled on your phone: Settings → Google → Google Assistant → ensure it is on. Try the command in the Google Home app directly (tap the lock tile → tap the lock/unlock button) rather than by voice. If the app command works but voice does not, the issue is with Google Assistant voice recognition, not the August integration.
Step 6: Check August App Permissions
The August app must have the necessary permissions to communicate with Google Home in the background. On Android: Settings → Apps → August → Permissions → ensure Location is set to "Allow all the time" (required for Bluetooth proximity detection) and Background activity is not restricted. On iOS: Settings → August → ensure Location is set to "Always" and Background App Refresh is enabled. Restricted background activity prevents the August app from maintaining its cloud connection, which causes Google Home to report the lock as unavailable.
Step 7: Factory Reset and Reconfigure
If all other steps fail, a factory reset of the August lock's Wi-Fi module resol