When I was having issues with my push button start, I had searched around and could not find anyone else with this particular issue. I would go to start the car by pressing the button once to turn on the glow plugs, wait, then push until it starts. For the first press of the button, it would occasionally take a few presses before turning the car on. Then, when pressing the button to start, same thing, it would take a few presses before cranking over. I tried the obvious things...new remote battery, pressing harder on the button, and holding the remote near the button as the manual states to do. Nothing worked. So I decided the problem was located in the switch.
(NOTE: This is not the same problem others are having with push to start where it starts then immediately shuts off. That is related to the button as well but is a different symptom.)
Over the past few weeks, I've read of two more people with this issue. Here is what fixed it for me.
First, remove the button assembly from the steering column and disconnect the wire connections. It pops off somewhat easily using a plastic pry tool. You can squeeze the top and bottom and pull back a little to give you some access to place the pry tool. You'll have to work it around the assembly where the tabs are. There are 4 tabs located at the top, bottom, left, and right. You can see them in second picture. The button scratches easy so now would be a good time to cover the button face with tape. Also, there is a circular antenna that slides over the switch that you will encounter. You can unplug it along with the switch to remove. Be sure it goes back on.
Here is the assembly by itself.
Remove the button assembly from the plastic housing by pushing the 2 metal clips in and sliding the switch outward. At this point, the 2 metal clips must be slid off of the assembly to access 2 of 4 plastic tabs in order to disassemble.
This is what you will find inside.
Take the rubber piece off of the electrical part. These are the 2 parts you need to clean.
What I did was
sprayed plastic-safe electrical parts cleaner on a lint free rag and lightly wiped the gold contact points and the blue contact points. I'm not entirely sure the blue contact points even need to be cleaned; it is just the procedure that I used.
WARNING: DO NOT spray the parts...use a lint free rag. (
Edit: You could also use swmic's suggestion from post #4 and use a pencil eraser.) There looked to be some light build up on the gold parts before cleaning. Reassemble and that's it.
This problem started occurring with my car at about 36k or 37k miles. I cleaned the switch at about 40k and it is now at 42k with no occurrence of this issue since cleaning. I only had one issue within the first week of cleaning the switch. Twice, the car started and immediately shut off. It had not done that before, nor has it done it since. That is the other issue I mentioned earlier that people were having with push button start. This leads me to believe that issue is remedied by a switch replacement or maybe only a cleaning.
It seems like this might be an issue we see more of in the future. I hope this helps.