Is PARK_W040 the same as PARK-W040?

Yes. PARK_W040, PARK W040, and PARK-W040 are alternate spellings of the same Tesla alert code. Also written as: PARK-W040, PARK_W040, PARK W040, PARK_w040_ECUSupplyLow, park_w040_ecusupplylow.

What symptoms can PARK-W040 cause?

Parking Assist alert: The voltage to the PARK Electronic Control Unit (ECU) is too low. Blind spot warning not functioning Sensor icons shown as unavailable on the touchscreen

What should I check for PARK-W040?

1. Clean all parking sensors and cameras 2. Reboot the vehicle 3. Schedule service if features remain unavailable

Is it safe to drive with PARK-W040?

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

TESLA Warning

PARK-W040

PARK_w040_ECUSupplyLow

Also written as PARK_W040 / PARK W040 / PARK_w040_ECUSupplyLow / park_w040_ecusupplylow

System

PARK

Parking Assist

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 PARK-W040 mean?

Tesla warning code in the Parking Assist (PARK) module. The voltage to the PARK Electronic Control Unit (ECU) is too low.

Original Description

The voltage to the PARK Electronic Control Unit (ECU) is too low.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

Parking Assist alert: The voltage to the PARK Electronic Control Unit (ECU) is too low.
Blind spot warning not functioning
Sensor icons shown as unavailable on the touchscreen

How to Diagnose and Resolve

1 Clean all parking sensors and cameras
2 Reboot the vehicle
3 Schedule service if features remain unavailable

Severity Notes

PARK-W040 is a Warning in the Parking Assist system. Schedule service soon. Monitor your vehicle for additional warnings.

Other PARK Codes

PARK_a001 PARK_a002 PARK_a003 PARK_a004 PARK_a005 PARK_a006 PARK_a007 PARK_a008

View all PARK codes →