BYD ATTO 3: Motor coolant overheating indicator comes on

BYD ATTO 3: Motor coolant overheating indicator comes on

Symptoms

• The motor coolant overheating indicator comes on. ^[1]

Possible causes

• The manual associates this indicator with excessive motor temperature; it does not provide a root-cause diagnosis involving the pump, sensor or coolant leakage. ^[1]

Checks

• Record the indicator, immediately stop in a safe place and leave the vehicle, and contact a BYD service provider for inspection as soon as possible. ^[1]

What to do

• Have a service provider inspect and repair the vehicle according to the manual; a component-level diagnostic procedure has not been obtained. Do not replace the water pump or motor based on this article. ^[1]

Applicability and limits

• Source limits: BYD ATTO 3, model year unconfirmed, New Zealand; only supports the warning meaning and response, not a specific component root cause. For inspection clues only; related parts do not constitute a replacement recommendation. No vehicle model has been linked; do not assume applicability to other models of the same brand. Scope: unknown ^[1]
• Only supports the warning meaning and response, not a specific component root cause

Related part categories

• Drive motor thermal management system ^[1]

Sources

[Source 1] BYD ATTO 3 Owner’s Manual NZ 08/2022 — PDF pp.44 / printed pp.43, Motor refrigerant overheating indicator (accessed 2026-11-01)
https://www.bydauto.co.nz/storage/uploads/7b3bb839-014f-457f-9f95-45118e270e00/ATTO-3-Owner%27s-Manual-NZ-08_2022.pdf