APS-W161
APS_w161_gpsAntennaDisconnected
Also written as APS_W161 / APS W161 / APS_w161_gpsAntennaDisconnected / aps_w161_gpsantennadisconnected
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-W161 mean?
Tesla warning code in the Autopilot System (APS) module. Warns if APS detects that GPS antenna is unplugged APS detects that GPS antenna is unplugged GPS antenna is plugged in correctly Warns if APS detects that Backup Autopilot is unhealthy APS detects Backup Autopilot is unhealthy based on watchdog state or GPIOs Backup Autopilot becomes healthy again BMS has detected that one or more module temperatures exceeds the warning threshold The BMS uses this for specfic exceptions triggered in code, like data exceptions or machine check errors Indicates a BMB reference voltage has continuously been out of bounds Any BMB reference voltage has continuously deviated outside the in-bounds threshold of the nominal voltage All BMB reference voltages continuously remain within the in-bounds threshold of the nominal voltage Other BMB voltage signals will be substituted given the reference voltage is unreliable BMS sees the VCFRONT MIA while not in drive state
Original Description
Warns if APS detects that GPS antenna is unplugged APS detects that GPS antenna is unplugged GPS antenna is plugged in correctly Warns if APS detects that Backup Autopilot is unhealthy APS detects Backup Autopilot is unhealthy based on watchdog state or GPIOs Backup Autopilot becomes healthy again BMS has detected that one or more module temperatures exceeds the warning threshold The BMS uses this for specfic exceptions triggered in code, like data exceptions or machine check errors Indicates a BMB reference voltage has continuously been out of bounds Any BMB reference voltage has continuously deviated outside the in-bounds threshold of the nominal voltage All BMB reference voltages continuously remain within the in-bounds threshold of the nominal voltage Other BMB voltage signals will be substituted given the reference voltage is unreliable BMS sees the VCFRONT MIA while not in drive state
Affected Tesla Models
What You May Notice
- Autopilot System alert: Warns if APS detects that GPS antenna is unplugged APS detects that GPS antenna is unplugged GPS antenna is plugged in c
- 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-W161 is a Warning in the Autopilot System system. Schedule service soon. Monitor your vehicle for additional warnings.