diff --git a/source/_components/sensor.seventeentrack.markdown b/source/_components/sensor.seventeentrack.markdown
index dc08f3fbb06..ad539729fad 100644
--- a/source/_components/sensor.seventeentrack.markdown
+++ b/source/_components/sensor.seventeentrack.markdown
@@ -18,6 +18,14 @@ The 17track.net sensor platform allows users to get package data tied to their
 number of packages in a current state (e.g., "In Transit"), as well as
 individual sensors for each package within the account.
 
+<p class='note warning'>
+Although the 17track.net website states that account passwords cannot be longer
+than 16 characters, users can technically set long-than-16-character passwords.
+These passwords **will not** work with the API utilized by `py17track`.
+Therefore, please ensure that your 17track password does not exceed 16
+characters.
+</p>
+
 ## {% linkable_title Configuration %}
 
 To enable the platform, add the following lines to your `configuration.yaml`