Overheated Engine Protection Operating Mode (4.6L V8 Engine); Cooling System (3.8L V6 Engine) - Pontiac 2005 Bonneville Owner's Manual

Overheated Engine Protection
Operating Mode (4.6L V8 Engine)
If an overheated engine condition exists and the
message ENGINE HOT, STOP ENGINE is displayed,
an overheat protection mode which alternates firing
groups of cylinders helps prevent engine damage. In this
mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle
to be driven to a safe place in an emergency. Driving
extended miles (km) in the overheat protection
mode should be avoided.
Notice: After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. See Engine Oil
on page 5-16.
5-40

Cooling System (3.8L V6 Engine)

When you decide it is safe to lift the hood, here is what
you will see:
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Cooling Fans