Geely Coolray: Weak cranking and dimming lights; check the low-voltage power supply

Geely Coolray: Weak cranking and dimming lights; check the low-voltage power supply

Symptoms

• Cranking is weak or the engine does not start, and the lights dim noticeably during cranking. ^[1]

Possible causes

• The manual links this combination to low battery charge and requires checking terminal contact. ^[1]

Checks

• Check the 12V (low-voltage) battery condition and terminal connections; continue professional diagnosis if the lights are normal but the engine still does not start. ^[1]

What to do

• Charge or repair according to the vehicle's original requirements; do not replace the battery solely because of a single failed start. ^[1]

Applicability and limits

• Only applies to the corresponding Coolray configuration in the Spanish-language COOLRAY SX11 manual from the official Chilean website; the manual date is not treated as an applicable model year. No actual vehicle model has been linked. Do not extend to vehicles with the same model name, other powertrains or other markets. Scope: unknown ^[1]
• Only applies to the specific configuration in the cited manual; do not assume applicability to all vehicles with the same model name.

Related part categories

• 12V (low-voltage) battery / 12V (low-voltage) battery / Low-voltage power supply ^[1]
• Low-voltage system / Battery cables and terminals / Low-voltage power supply ^[1]

Sources

[Source 1] GEELY COOLRAY SX11 Spanish-language Owner's Manual from the Official Chilean Website — PDF pp.143–144 / printed pp.141–142, El vehículo no puede arrancar; pp.230–231 / printed pp.228–229, Batería (accessed 2026-11-01)
https://www.geely.cl/content/uploads/2024/10/SX11-Coolray-_compressed.pdf