Check your engine coolant level at the reservoir ( do not take a radiator cap off until the engine is cool )
what is a fail safe mode for a Ford Explorer 2005
what is a fail safe mode for a Ford Explorer 2005
It is not safe to drive a Ford Expedition with a broken lower trailing bar because it can snap the drive-shaft mount.
On a Ford 4.6 liter V8 , engine fail safe cooling means that you have lost your engine coolant
According to the 2009 Ford Escape Owner Guide : Only the 2.5 liter four cylinder engine has the fail-safe cooling system
Fail safe mode on a Ford F-150 is used when the vehicle has detected an unrecoverable error. It begins operating in a basic mode where it attempts to predict the correct operation.
According to the 2005 Ford Explorer Owner Guide fail safe cooling is only on the 4.6 liter V8 engine ( loss of engine coolant )
I believe your engine coolant level is LOW
Engine fail safe is on the 4.6 L V8 engine only - ( you have lost your coolant ! ) - find and then repair the cause of your coolant loss
Failsafe engine mode
The Ford Expedition,as with most SUV's has a high center of gravity and is thus more likely to roll ovr than a car. Practicing basic safe driving habits,can negate this risk.