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I was driving down the highway, suddenly LCA block pops up on the cluster. Please see attached. But once I restart the car it's gone and dealer don't know what the issue is
Did you find a fix for this issue? I have a 2012 Porsche Panamera and I’m receiving the same error.
Originally Posted by bebeqq1231
I was driving down the highway, suddenly LCA block pops up on the cluster. Please see attached. But once I restart the car it's gone and dealer don't know what the issue is
Suggest Googling "Porsche Lane Change Assist Sensor." Porsche uses the same technology/parts among several models. Seems that intermittent blocking/failure is not uncommon.
Usual dealer remedy is to replace all sensors, which not only is expensive but also is not a guaranteed fix. Sometimes the problem persists after sensor replacement.
All too often these electrical problems are due to insufficient/bad electrical grounds. Body ground connections do degrade with age and corrosion. Chasing down ground connections can be frustrating as they may be hard to see or find, so I have just made a new ground wire connection in some instances.
Another potential cause is low voltage to the sensor. Car batteries do degrade over time. I replace them every four years, no matter what. These modern sensors are very sensitive to less than optimum voltage; and while your battery has enough energy to start your car it may be lacking a bit in running voltage.
