Stuck in ACC mode?

[pftomo]

My 2017 Mazda CX5 has been having a strange issue. When I turn the car off it keeps beeping indicating that the key is still in the car (had the key with exclamation point symbol on dash)and will not lock, battery is brand new in the key fob. Also, the screen will not turn off. My troubleshooting so far indicates that the car will not turn off ACC mode so power is still being provided even though the car is off, I think. I have an aftermarket remote start system that has been running fine for 3 years. I have an aftermarket screen/head unit that has been running fine for 2 years.

I unplugged the remote start and the beeping stopped and I can now lock the car with the keyfob. But the screen still stays on. I reset the settings to factory settings for the android based screen.

These two issues tell me that neither is the culprit, but they are both likely affected by the same issue which is that ACC power is not turning off. My searching shows that on the previous generation CX5 it could be the AT switch on the shifter, but I cannot find anything for the 2017 showing that it has the same switch. The AT fuse in the interior panel is intact.

Any ideas?

 

[theblooms]

My 2017 Mazda CX5 has been having a strange issue. When I turn the car off it keeps beeping indicating that the key is still in the car (had the key with exclamation point symbol on dash)and will not lock, battery is brand new in the key fob. Also, the screen will not turn off. My troubleshooting so far indicates that the car will not turn off ACC mode so power is still being provided even though the car is off, I think. I have an aftermarket remote start system that has been running fine for 3 years. I have an aftermarket screen/head unit that has been running fine for 2 years.

I unplugged the remote start and the beeping stopped and I can now lock the car with the keyfob. But the screen still stays on. I reset the settings to factory settings for the android based screen.

These two issues tell me that neither is the culprit, but they are both likely affected by the same issue which is that ACC power is not turning off. My searching shows that on the previous generation CX5 it could be the AT switch on the shifter, but I cannot find anything for the 2017 showing that it has the same switch. The AT fuse in the interior panel is intact.

Any ideas?

Let me guess, you have a Fortin remote start. If so GET THAT POS OUT OF THERE. They are horrible.

 

[ADS-B]

Remove and replace the start button.

 

[RedBaron]

When I turn the car off it keeps beeping indicating that the key is still in the car (had the key with exclamation point symbol on dash)and will not lock, battery is brand new in the key fob.

A classic problem is the shifter park switch. Try jiggling/pushing on your shift lever once in park and see if that fixes it.

I had this happen in our 2014 and managed to shim the switch to fix it (alternative is to replace it).

 

[pftomo]

A classic problem is the shifter park switch. Try jiggling/pushing on your shift lever once in park and see if that fixes it.

I had this happen in our 2014 and managed to shim the switch to fix it (alternative is to replace it).

I tried this but didn't help. I also looked into replacing the switch but couldn't find anything for the 2017 and later models.

 

[pftomo]

Let me guess, you have a Fortin remote start. If so GET THAT POS OUT OF THERE. They are horrible.

Yeah, it is a Fortin, but I had absolutely no issues with it for the past several years, it doesn't make sense that it would suddenly start causing issues without any changes to the system.

 

[theblooms]

Oh it makes sense all right. They're trash, and they don't last

 

[youri]

To me it would make sense that it would be the shifter.

The way the shifter and push button works is that if you turn off the car while in Drive, the engine shuts down but stays in ACC mode. If you are in park, then engine and the car shuts off. So if the car doesn’t know you are in park, it would default to ACC.

 

[RedBaron]

Yeah, it is a Fortin, but I had absolutely no issues with it for the past several years, it doesn't make sense that it would suddenly start causing issues without any changes to the system.

I have Fortins in two cars without issues, but it should be easy enough to disconnect the connectors and eliminate (or not) the Fortin as a cause.