TESLA Warning
APP-W221
APP_w221_accRadarBlind
Also written as APP_W221 / APP W221 / APP_w221_accRadarBlind / app_w221_accradarblind
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does APP-W221 mean?
Tesla warning code in the Application Layer (APP) module. Radar sensor is blocked
Original Description
Radar sensor is blocked
Affected Tesla Models
Model SModel XModel 3Model YCybertruck
What You May Notice
- Application Layer alert: Radar sensor is blocked
- Touchscreen may show an error for one or more apps or settings
- Feature may restore itself after a reboot
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels for ~10 seconds)
- 2 Check for pending OTA software updates
- 3 If the issue persists, schedule a service appointment
Severity Notes
APP-W221 is a Warning in the Application Layer system. Schedule service soon. Monitor your vehicle for additional warnings.
Other APP Codes
APP_w002 APP_w003 APP_w004 Tesla warning code in the Application Layer (APP) module. AC... APP_w005 APP_w006 APP_w007 APP_w008 APP_w009 Tesla warning code in the Application Layer (APP) module. AE...
View all APP codes →