Is APP_W045 the same as APP-W045?

Yes. APP_W045, APP W045, and APP-W045 are alternate spellings of the same Tesla alert code. Also written as: APP-W045, APP_W045, APP W045, APP_w045_radMia, app_w045_radmia.

What symptoms can APP-W045 cause?

APP_w045 or APP_w045_radMia appears in the Tesla alert history. Driver-assistance or radar-dependent features may be unavailable or limited while the alert is active. The alert may appear with other APP, gateway, radar, or vehicle-network alerts.

What should I check for APP-W045?

1. Record the exact APP_w045 alert ID, APP_w045_radMia full name, time, state of charge, temperature, and any dashboard message. 2. Check whether the alert is isolated or appears with other APP, gateway, radar, Autopilot, or network alerts before clearing history. 3. Note recent software updates, front-end service, windshield work, bumper repair, or a minor impact before the first occurrence. 4. If driver-assistance features are unavailable, drive manually and avoid relying on assisted-driving features until service diagnosis confirms the cause. 5. Provide screenshots and recent driving or charging context to Tesla Service or a qualified EV technician.

Is it safe to drive with APP-W045?

🟡 Check the vehicle display for drive or charge restrictions and schedule service promptly.

TESLA Warning

APP-W045

APP_w045_radMia

Also written as APP_W045 / APP W045 / APP_w045_radMia / app_w045_radmia

System

APP

Application Layer

Type

Warning

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-W045 mean?

Tesla APP_w045 / APP_w045_radMia means the Application Layer reports that the Radar ECU is missing. It is a warning-level network alert: driver-assistance functions that rely on radar may be limited, so record the exact alert stack and arrange qualified Tesla diagnosis if it returns.

Original Description

Radar ECU is missing

Affected Tesla Models

Tesla vehicles with radar-related driver-assistance hardwareConfirm applicability with the vehicle configuration and alert log

What You May Notice

APP_w045 or APP_w045_radMia appears in the Tesla alert history.
Driver-assistance or radar-dependent features may be unavailable or limited while the alert is active.
The alert may appear with other APP, gateway, radar, or vehicle-network alerts.

How to Diagnose and Resolve

1 Record the exact APP_w045 alert ID, APP_w045_radMia full name, time, state of charge, temperature, and any dashboard message.
2 Check whether the alert is isolated or appears with other APP, gateway, radar, Autopilot, or network alerts before clearing history.
3 Note recent software updates, front-end service, windshield work, bumper repair, or a minor impact before the first occurrence.
4 If driver-assistance features are unavailable, drive manually and avoid relying on assisted-driving features until service diagnosis confirms the cause.
5 Provide screenshots and recent driving or charging context to Tesla Service or a qualified EV technician.

Severity Notes

APP-W045 is a Warning in the Application Layer system. Schedule service soon. Monitor your vehicle for additional warnings.

Other APP Codes

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