Transmission not in P Risk of Vehicle Rolling Away
01-22-2015, 12:20 AM
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Mercedes C300, BMW X5
Transmission not in P Risk of Vehicle Rolling Away
End of last week, my wife experienced an error message called "Transmission not in P Risk of Vehicle Rolling Away." She called me and told me about the problem. Today when we were driving away from the store, it happened again. I am going to email my service adviser to see if what he says. Has any experience this problem before?
To get rid the problem, I had to turn off the engine. The first time it did not work. So I opened the door and slam it shut again again. The second time it worked. So this seems to be getting worse. As you can see from the two attached photos, the gears are in either reverse or in drive. So I don't see why the error message would come along? My gut feeling tells me the door sensor malfunction. However, as you can see from the picture, there are no open door messages on the dash. This is just weird. Any advice?
To get rid the problem, I had to turn off the engine. The first time it did not work. So I opened the door and slam it shut again again. The second time it worked. So this seems to be getting worse. As you can see from the two attached photos, the gears are in either reverse or in drive. So I don't see why the error message would come along? My gut feeling tells me the door sensor malfunction. However, as you can see from the picture, there are no open door messages on the dash. This is just weird. Any advice?
01-22-2015, 12:55 AM
#2
I think it's just the door not completely closed. I got the same message when I tried to move my car a bit more to the front in my garage with the door open. That's why it went away when you slammed shut the door. It's programmed to alert you when you get out of the car while it's not in park.
01-22-2015, 01:03 AM
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2020 C8, 2020 defender 110X, 2019 720S, 2014 GLK 350 4matic, 2015 escalade platinum, 2013 RRS HSELux
I have a new GLK and I think it's just a sensor that detects that the gear is not in P. While installing parktronic sensors, I put it in reverse for a few seconds to test it. After awhile it went to P by itself. Very cool!
01-22-2015, 01:54 AM
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Mercedes C300, BMW X5
I think it's just the door not completely closed. I got the same message when I tried to move my car a bit more to the front in my garage with the door open. That's why it went away when you slammed shut the door. It's programmed to alert you when you get out of the car while it's not in park.
01-22-2015, 01:56 AM
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Mercedes C300, BMW X5
I don't have the parktronic sensor. I was kinda surprised it was not included as part of the rear camera.
01-22-2015, 02:34 AM
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Mercedes C300, BMW X5
Something is very weird with this car. I have decided to turn on the engine. Leave it in park. I open the driver's door to see if I can see a message. There are no messages on instrument panel! Okay, that can't be right. So I went to the owner's manual. On page 281, I am suppose to see a door open. What is going on? 
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01-22-2015, 04:44 AM
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It's the door. Had this issue many times when the car was brand new. The door is not entirely shut, but not open enough to set off the interior lights.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is lighter than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is lighter than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Last edited by megaoctane; 02-03-2015 at 12:43 PM.
01-22-2015, 06:21 AM
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C220 BlueTec AT
I have had the same experience once or twice when leaving home. It is a door that is not completely closed when you try to move from Park to Drive or Reverse.
01-22-2015, 11:21 PM
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Mercedes C300, BMW X5
It's the door. Had this issue many times when the car was brand new. The door is not entirely shut, but not open enough to set off the interior lights.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
01-22-2015, 11:33 PM
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01-22-2015, 11:35 PM
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2015 C400
It's the door. Had this issue many times when the car was brand new. The door is not entirely shut, but not open enough to set off the interior lights.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Same thing happened to me once...and it hasnt happened ever since. I realized I didn't shut the door completely. These doors need a hard push.
01-22-2015, 11:42 PM
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Mercedes C300, BMW X5
I am going to see if I contact Mercedes Benz regarding this. The warning message is not very meaningful. We need a better message like driver door open.
01-23-2015, 12:01 AM
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Anyways, I submitted this link to the MB USA. Although, I probably submit into the wrong section. Hopefully, the concern gets into the right people. I really wish this car has better warning message. Transmission in Park risk of rolling away does not tell me any reason why this is the case. All the car I have so far always tells me with a little icon that the door is open. I just find it strange I never seem it on C300. Am I crazy to expect messages that points me to where the problem is? I really miss the door open icon. 
01-24-2015, 04:20 AM
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Great, it is good to have another confirmation. I am still puzzle as to how to see the door open message. This is the weirdest car I have been in. Normally, I see a little door open symbol. That is what I expect to see, but I haven't seem that warning message.
I am going to see if I contact Mercedes Benz regarding this. The warning message is not very meaningful. We need a better message like driver door open.
I am going to see if I contact Mercedes Benz regarding this. The warning message is not very meaningful. We need a better message like driver door open.
01-26-2015, 12:25 AM
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01-26-2015, 02:10 AM
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I got a very standard response from MB USA. Basically, told me my dealer will diagnosis the problem. I gave a very poor feedback on the survey. At very least, respond to what I have wrote instead of giving me a robotic response. In this respect, MB dropped the ball. My experience is getting soured by this and the bleeding problem.
01-26-2015, 11:41 AM
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01-26-2015, 05:11 PM
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Here it is:
Door was slightly open. Put the car in drive, started to drive, over 5-7km/h, the warning message comes up. Slowing down, it disappears. Increase speed again, and the warning message comes back.
A beatuiful detailed picture. like the fact that you can see the dashboard screen through the front window
Door was slightly open. Put the car in drive, started to drive, over 5-7km/h, the warning message comes up. Slowing down, it disappears. Increase speed again, and the warning message comes back.
A beatuiful detailed picture. like the fact that you can see the dashboard screen through the front window
Last edited by megaoctane; 01-27-2015 at 02:10 AM.
02-02-2015, 06:39 AM
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It's the door. Had this issue many times when the car was brand new. The door is not entirely shut, but not open enough to set off the interior lights.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
Also had the car in at the dealer and they took a look, but it was the same issue with all C's they had standing.
The driver door on the C is heavier than "normal" and will take more force to close shut the first couple of months.
The reason you are not getting the door waning is because it is the driver door that is open and the gear is in Drive, and your foot is not on the brake. So the cars computer logic can only show one warning at a time in the display - and the gear being in Drive and not in Park is the more severe warning than just telling you the door is open and not warn you about the car being in Drive.
If the driver door is closed but one of the other doors are open, then you will get the door open warning and which door.
02-16-2017, 11:04 PM
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End of last week, my wife experienced an error message called "Transmission not in P Risk of Vehicle Rolling Away." She called me and told me about the problem. Today when we were driving away from the store, it happened again. I am going to email my service adviser to see if what he says. Has any experience this problem before?
To get rid the problem, I had to turn off the engine. The first time it did not work. So I opened the door and slam it shut again again. The second time it worked. So this seems to be getting worse. As you can see from the two attached photos, the gears are in either reverse or in drive. So I don't see why the error message would come along? My gut feeling tells me the door sensor malfunction. However, as you can see from the picture, there are no open door messages on the dash. This is just weird. Any advice?
To get rid the problem, I had to turn off the engine. The first time it did not work. So I opened the door and slam it shut again again. The second time it worked. So this seems to be getting worse. As you can see from the two attached photos, the gears are in either reverse or in drive. So I don't see why the error message would come along? My gut feeling tells me the door sensor malfunction. However, as you can see from the picture, there are no open door messages on the dash. This is just weird. Any advice?
I work on the SW part of the Mercedes. This is no problem. The message clearly says that the gear is not in "P" . Hence before you come out of your vehicle you need to engage either "P" Or "N" gear.
There is a function called stand still coordinator which does this thing. And I guess you have a manual transmission. In this case it will also give an acoustic warning. In case of automatic transmission this is taken care automatically. You can leave the car in any gear position and it will make it to "P" by itself.
Thanks!
