MG5 won't turn off

[deanWombourne]

Bit unusual this, normally when they break they won't turn on!

The car is sitting on the drive right now, and here's what it's doing:

Start/stop button won't turn off (light on button stays green, headlights stay on etc).
Keys won't lock the car, just honk the horn when we try (probably because it's still turned on!)
Pushing the start/stop button will turn air-con on/off, so it's definitely working as a button.
Battery voltage displayed on the dash is 13(ish)V so it looks like the 12v system is good? (Main battery is at 80% so that's fine too)
If i put the car into reverse the rear camera starts up, but pressing accelerator does nothing
While pushing the start/stop button turns air-con on/off, the dial on the display showing power (and regen) remains off (i.e. pointing down at the max regen position - I'd expect it to go to the 0 position when the car is ready to drive).

I've tried both sets of keys, tried the key in the recovery position (in the cup holder), and tried resetting the info system (bit of a long shot) with no change.


Any suggestions before I accpet failure and call a garage over Christmas?

 

[Verdigris]

Have you got your foot on the brake pedal when you push the stop/start button?

 

[Jomarkh]

Have you tried connecting it to your EVSE (charge point)?

 

[maskull]

The horn honks if a door isn't closed properly and it also won't drive if that's the case . Maybe check all your doors are closed properly

 

[Alb]

You could try disconnecting the 12V battery.

 

[Susanna]

Have you tried pressing and holding the start/stop button?

 

[slmorgan42]

Not this would help but try holding the home button on the info system for about 10 seconds to reboot that.

Worth a shot. Mine is a FL but I assume the same on the pre.

 

[dragon2611]

You could try disconnecting the 12V battery.

I did think that, but you might get a bit of an arc/spark when doing so given everything is on.
Not sure how good an idea it is with the DC/DC convertor energised as well?

 

[deanWombourne]

Have you got your foot on the brake pedal when you push the stop/start button?

Yes - no effect.

Have you got your foot on the brake pedal when you push the stop/start button?

Yes - no effect.

Have you tried connecting it to your EVSE (charge point)?

yes - it says cable connected, then removing it doesn’t fix things.

Have you tried pressing and holding the start/stop button?

Yes - for a short while it has no effect. For a long while it tells me that the start stop button is stuck down.

Not this would help but try holding the home button on the info system for about 10 seconds to reboot that.

Worth a shot. Mine is a FL but I assume the same on the pre.

Already tried - no effect

The horn honks if a door isn't closed properly and it also won't drive if that's the case . Maybe check all your doors are closed properly

I’ve tried all doors, boot, and bonnet. Each door opening shows on the dash, and the door open warning goes away when they are closed again, so door sensors are working and the doors are closed.

 

[slmorgan42]

Wow sounds like you have tried everything except kicking it lol

 

[snowyy]

Have you been playing with the new app? i have had sort of similar issue trying to get the defrost to actually use hot air. whilst sitting in the car i have been playing with locking the car and putting on the front screen i actually locked myself in! fortunately the app allowed me to unlock until then i couldn't switch the car off!
you could try the app to see if it will switch off

 

[deanWombourne]

Have you been playing with the new app? i have had sort of similar issue trying to get the defrost to actually use hot air. whilst sitting in the car i have been playing with locking the car and putting on the front screen i actually locked myself in! fortunately the app allowed me to unlock until then i couldn't switch the car off!
you could try the app to see if it will switch off

I didn’t think the app connected to the MG5?

 

[slmorgan42]

I didn’t think the app connected to the MG5?

It does on the FL.

Did you ever get the car turned off?

 

[Gomev]

Is there another key in the car ?

 

[JuziWomble]

Did you ever get the car turned off?

Agreed - What happened over night ??

 

[Chorlton]

We are waiting with baited breath to find out what happened, please update, think I’d have called the AA.

 

[reg10]

Horn will honk if car left on even with all doors shut
App only connects to FL mg5
Turning on only needs foot on brake no turning off

 

[slmorgan42]

We are waiting with bated breath to find out what happened, please update, think I’d have called the AA.

Maybe he is driving round the block trying to flatten the HV battery lol

 

[amtacrick]

We just had this same issue. Can't tell you what sequence of things tried fixed the issue, but I did not disconnect the battery.