My 2012 Lincoln MKZ Hybrid is shutting down completely on the highway only after over 60 miles of driving. A red yeild symbol flashes on the dash with the message, pull over safely. The car locks up and disables the ability to drive it. I then have to pull over on the busy highway, wait 10 minutes and turn back on the car. This will keep happening after continued long drives. I took it to a Ford dealer service department where they said it was a software issue, did some programing and sent me on my way. The car did the same thing on my next long trip. A few days after that I took it to a different dealer, where they said the water pump needed to be replaced. They replaced the water pump and assurred me it was fixed. One day later it did the same thing! I brought it back to the Ford dealer where we are now at a stand still with them not believing me that there is a problem and me telling them, please believe me, you need to drive it over 60 miles on the highway for it to happen!
If it’s lighting up dash lights, and shutting the engine down, then it should be storing a trouble code in the computer. Has the dealership not checked this?
Assuming you are not in California, drive it to an Autozone and ask them to read your stored codes - they’ll do it for free. Write down the codes (not what the clerk says the codes mean, but the actual codes, which will be in a P#### format) and post them here.
Hi! I’m having the same issue and it started a few years ago intermittently (now only happens in summer or when external temp is more than 60’s). I am curious if there was a solution as I too have been told there’s no code and no way to diagnose it. I considered maybe it’s the TCM…IDK but desperate for a solution.
Suggest you post as new topic @Mizkitty113_181416 to get better results here. Click maint/repairs above left, then new topic above right.
There’s been a couple of tsbs that might be related one for reprogramming the ECM, and another for loss of network communications. Problematic batteries or unexplained discharge (both hybrid and 12 volt) could be the problem too.