What is the reason for the Buick LaCrosse displaying engine overheating and AC shutdown?

[ColeAnn]

Buick LaCrosse displaying engine overheating and AC shutdown indicates that the engine has activated its high-temperature protection function, which is a normal phenomenon. Below are additional details: 1. Cause: The Buick LaCrosse engine overheating and AC shutdown are caused by excessively high engine temperature and poor radiator cooling, which is a normal phenomenon and part of the engine's high-temperature protection mechanism. If the engine temperature is too high, it is necessary to stop and repair it promptly to prevent engine failure. 2. Troubleshooting measures: Check all parts of the engine for leaks or blockages; inspect the radiator and auxiliary tank for damage, leaks, or blockages caused by scale; check whether the thermostat can open and whether the water pump, temperature sensor, and temperature control switch are damaged; examine whether the cylinder head gasket is damaged, etc.