Is APS_W154 the same as APS-W154?

Yes. APS_W154, APS W154, and APS-W154 are alternate spellings of the same Tesla alert code. Also written as: APS-W154, APS_W154, APS W154, APS_w154_secEthPacketMIA, aps_w154_secethpacketmia.

What symptoms can APS-W154 cause?

Autopilot System alert: This alert is triggered when the Autopilot Secondary does not receive a periodic message from the Autopilot Primary that Camera or sensor obstruction notification on the touchscreen Autopilot features greyed out in the drive settings menu

What should I check for APS-W154?

1. Check all cameras and sensors for dirt, ice, or obstructions — clean if needed 2. Reboot the vehicle 3. Check for OTA updates (Autopilot improvements are frequently delivered OTA) 4. Schedule service if Autopilot remains unavailable after cleaning and rebooting

Is it safe to drive with APS-W154?

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

TESLA Warning

APS-W154

APS_w154_secEthPacketMIA

Also written as APS_W154 / APS W154 / APS_w154_secEthPacketMIA / aps_w154_secethpacketmia

System

APS

Autopilot System

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 APS-W154 mean?

Tesla warning code in the Autopilot System (APS) module. This alert is triggered when the Autopilot Secondary does not receive a periodic message from the Autopilot Primary that sets the Drivers Assistance System (DAS) electronic control unit's (ECU) internal Ethernet switch to either allow or deny external network traffic. When connected with Toolbox to a Model S or X vehicle, the DAS ECU must allow traffic to pass to the media control unit (MCU) to enable communication with the vehicle. There might be an internal communication issue between the Autopilot Secondary and the Autopilot Primary, or the Autopilot Primary is not running as expected.

Original Description

This alert is triggered when the Autopilot Secondary does not receive a periodic message from the Autopilot Primary that sets the Drivers Assistance System (DAS) electronic control unit's (ECU) internal Ethernet switch to either allow or deny external network traffic. When connected with Toolbox to a Model S or X vehicle, the DAS ECU must allow traffic to pass to the media control unit (MCU) to enable communication with the vehicle. There might be an internal communication issue between the Autopilot Secondary and the Autopilot Primary, or the Autopilot Primary is not running as expected.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

Autopilot System alert: This alert is triggered when the Autopilot Secondary does not receive a periodic message from the Autopilot Primary that
Camera or sensor obstruction notification on the touchscreen
Autopilot features greyed out in the drive settings menu

How to Diagnose and Resolve

1 Check all cameras and sensors for dirt, ice, or obstructions — clean if needed
2 Reboot the vehicle
3 Check for OTA updates (Autopilot improvements are frequently delivered OTA)
4 Schedule service if Autopilot remains unavailable after cleaning and rebooting

Severity Notes

APS-W154 is a Warning in the Autopilot System system. Schedule service soon. Monitor your vehicle for additional warnings.

Other APS Codes

APS_w002 APS_w003 APS_w004 APS_w005 APS_w006 APS_w007 APS_w008 APS_w009

View all APS codes →