Does the etc engine fail safe mode engage when driving 20mpg or less in snow? I love 2003 lincoln LS. This question is not addressed in the owner's guide.

Have you replaced ignition coils on this car previously? If so, did you use OEM Motorcraft coils, not aftermarket? The aftermarket coils do not play well with the PCM on this car, causing it to do goofy things including having it go into the ETC Failsafe mode. This is likely your issue since coil issues are common on this car. If it is not, let me know

Probably problem with the (ETC) electronic throttle control system . If the engine light is lit ,didn't anyone check for DTC'S - diagnostic trouble codes ?

ETC Fail Safe -- is a very bad COP Ignition Coil
can not use the car in that condition

The trans issue --- is a bad Solenoid Pressure Control
Pack -- inside the trans pan

Forget the four coils. That is a common problem,but I would question 4 failing.
The ABS ,Parking Brake,Speedo Etc,where nothing to worry about,you were loosing power, when it went to fail safe,so they came up.

ETC -is Electronic Throttle Control, your problem? Maybe
You will need to have a scanner put on it's,daignostic connector under the dash,to check for codes. Them only a trained technician can follow a chart or test proceedure to properly repair.
I have a 2004 LS,one of Ford most high tech and complicated vehicles.
Conclusion: only a professional can repair you car.
I would start with a local shop. If money you have money to throw away,go to a dealer.
Most likely have to wave to it on a flat bed carrier. Don't flat tow it.

Over heating causes it to shut down 2 cyl n run on 6 cyl to help cool it down but once that happens the best is to shut it off check the cooling system check for antifreeze make sure its full then take the ground off the battery that's in the trunk beside the spare tire n leave the postive on but take off negative n leave it off for 5 mins then hook it back on it will turn the safe mode off back to normal. That's what I did to my 04 lincoln LS v8 3.9l... hope this helps ya

A new T/P sensor on the throttle body.

Electronic Timing Control. Has to do with your coil packs/spark plugs. There was a recall on this, check with your dealer for a TSB on the issue. Car running rough?

try disconecting the battery for 5 mins see if it reeboots computer.

i am having the same prob with mine.does yous stall when it comes on?

my etc light came on and i took to the lincoln dealer it was my fuel system and it had to be replaced for the tune of 800 dollars. after that it ran fine for about a month then i hit a hump then it went into etc mode again. i then took it back to lincoln they did not see a code or that it even went into etc mode because i cut the car off and turned it back on it ran fine but once you cut it off it resets itself it did this about 10 more times and never came back on again knock on woods no problems but it started missing and the check engine light came on it was a misfire in cylinder 4 and it replaced the spark plug myself and it has ran find ever since. I was told anytime the etc light comes on it due to fuel or transmission