byd_das02

Easy Fix

BYD · Electric & Hybrid Cars

Ultrasonic Sensor Fault

Quick Answer

Error code BYD_DAS02 on your BYD Electric & Hybrid Cars means: Ultrasonic Sensor Fault. This is usually fixable — see the step-by-step guide below.

Affected Models

Applies to all models

Likely Causes

Ultrasonic sensor face covered with mud, ice, or road film blocking ultrasonic signal transmission
Sensor housing physically damaged from parking impact or road debris strike
Ultrasonic sensor wiring harness damaged from wheel well exposure or debris
Sensor control module communication fault dropping one or more sensors from the network
Sensor operating frequency interference from external sources causing erratic distance readings

How to Fix It

Clean all ultrasonic sensor faces on front and rear bumpers with a soft cloth to remove debris

Inspect bumper-mounted sensor housings for cracks or physical displacement from impact

Check sensor wiring harness connectors in the bumper area for damage or corrosion

Test the parking assist system to identify which specific sensor is faulting

Contact BYD service for individual sensor replacement and parking assist system recalibration

Pro Tip

This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.

Parts You May Need

Ultrasonic parking sensor (position-specific)

Sensor wiring harness repair connector

Bumper sensor mounting grommet

Parking system diagnostic tool

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