C5 Remote Won't Lock/unlock

[Guest haza406]

Had a fault develop with my fob this afternoon for my 2001 C5 2.0 110bhp SX, got out the car, locked as normal from the remote. Came back to the car after 10mins and it wouldn't unlock off the remote. Replaced the battery and Tried the re-sync process:

 

Key in and ignition on, hold the lock buton for more than 10 seconds

Ignition off and key out, wait 3 seconds then try it.

 

Doesn't work, I've only got one key with the vehicle and no key code card, so I'm hoping this ain't gonna be an expensive trip to the stealers! Is there anything else I can try/check? Works fine off the key in the lock, but in this weather it's a bit annoying having to faff about trying to unlock it

 

Thanks

[paul.h]

I have had this on the odd occasion with our cars, would not unlock or lock from the remote but then in a different location has worked ok straight away. Not done anything about it but put it down to some interference such as mobile phone/mast or other in use in the area.

[Guest haza406]

I did wonder as I've had similar happen to me in the past with other vehicles, and I was also at a large shopping centre when it happened, but got home and no change. Only had it three days so a little annoyed, but paying a visit to the dealer I bought it off tomorrow. Just hope this isn't a sign of things to come, took a chance on this as I'm a ford man, but after being totally unimpressed by the reliability of fords TDCi lump, I decided to take my dad's advice and go for a C5

[cardsharc]

Had a fault develop with my fob this afternoon for my 2001 C5 2.0 110bhp SX, got out the car, locked as normal from the remote. Came back to the car after 10mins and it wouldn't unlock off the remote. Replaced the battery and Tried the re-sync process:

 

Key in and ignition on, hold the lock buton for more than 10 seconds

Ignition off and key out, wait 3 seconds then try it.

 

Doesn't work, I've only got one key with the vehicle and no key code card, so I'm hoping this ain't gonna be an expensive trip to the stealers! Is there anything else I can try/check? Works fine off the key in the lock, but in this weather it's a bit annoying having to faff about trying to unlock it

 

Thanks

try disconnecting car battery for a minute then reconnect sometimes solves proplems. oh make sure you have keys out of car when disconnecting battery and reconecting

[Guest shenden]

try disconnecting car battery for a minute then reconnect sometimes solves proplems. oh make sure you have keys out of car when disconnecting battery and reconecting

 

Mine has the same problem. It never use to but it does now. New fob Battery the same old drill sit in re sink. Get out the car hit lock it locks come back any later than 2 minutes and the thing goes to sleep and wont unlock by the key fob. I think it just wants resetting on a diagnostic machine but 75 pounds just to stop me putting the key in the door i don't think so lol