Check Vehicle Protection System warning?

BETH OWEN

MEMBER
2015 FIAT 500X
1.6L
2WD
MANUAL
100,000 MILES

We can’t start the car. The battery in the key fob was replaced a few months ago and we’ve had no problems. All of a sudden, we can’t start - lights come on, but we get a warning that says, ‘check vehicle protection system’. We had done all sorts of locking and unlocking, from inside/outside, we have disconnected the battery for 5 minutes. We have held the lock button down... We have called Fiat and they tell us to get the car towed to them!

1 Reply

BORIS K

MECHANIC
762 POSTS

Hello,

Is your vehicle equipped with a start/stop button? see image below.
If so, try holding the key fob directly at the button and press the button using the key fob.

A good video:
https://youtu.be/3vdVXEfHhPQ

How good is the vehicle 12V battery? A weak battery could cause issues with the immobilizer system.

A good guide:
https://www.2carpros.com/articles/symptoms-of-a-bad-car-battery

Perhaps try a jumper battery, see if this changes anything:
https://www.2carpros.com/articles/how-to-jump-start-car-battery-using-jumper-cables

The message "check vehicle protection system" usually points towards a possible failure of the Fiat Code (immobilizer) system and should be diagnosed using a suitable diagnostic tool.
I suggest trying and read the fault memory and post the fault codes here so we can evaluate and advise.

How to carry out a CAN scan:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Cheers, Boris

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Check Vehicle Protection System warning?

1 Reply

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