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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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'Start Prevented-Try Again'? Check how hot your keys are!Views : 1375 Replies : 7Users Viewing This Thread : |
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Sep 19th, 2020, 18:59 | #1 |
New Member
Last Online: Sep 19th, 2020 21:14
Join Date: Sep 2020
Location: Norwich
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'Start Prevented-Try Again'? Check how hot your keys are!
Hi Everyone
This is my first post on here and hopefully it will help some fellow XC90 owners who have experienced the dreaded ‘Start Prevented - Try Again’ message. This has plagued me this summer but I made a miraculous discovery recently after several garages including a Volvo specialist couldn’t get to the bottom of it. My Discovery - If your keys get hot the car won’t start! My problems would always happen on hot sunny days but never when I initially left the house - only when i had been running the car for a while and had parked up. I got stranded a couple of times on beach trips and each time the car eventually started when the temperature outside dropped. I had some long waits in car parks waiting for the RAC and then suddenly the engine would start when the shade hit my car! This definitely seemed to be immobiliser related and was definitely linked to heat. Naturally I was assuming it was the car getting hot that was the problem and was thinking maybe failing relays or wiring issues. During this time I replaced the antenna ring (made no difference) and even had the CEM checked and re-furbished (Again - no improvement). My local garage couldn’t see any fault codes and a nearby Volvo specialist also drew a blank. I was wracking my brains trying to work out what the connection to heat was when I hit on the idea of the temperature of the keys being a factor so i did a controlled experiment. I let the keys sit in the sun for a few minutes and tried to start the car - Nothing I brought the keys in the house and left them in my kitchen for 10 mins and tried again - car started! I did this 10 times and every time it was the same. Later I found that even having the keys in my pocket for 10mins with my hand on them was enough to stop the car from starting. This happened with my main key and my spare just the same. Lastly I tried my experiment when the car was cool but the key was warm and my suspicions were confirmed - same results. I was so relieved when I actually made the connection as each time I went out in the car I was wondering if it would start again but now I knew I just had to keep the key from getting warm. So clearly the problem must be with the little glass transponder chip in the top part of the XC90 Key. It makes sense as it looks like a copper wire coiled in tiny glass capsule which i’m sure must be susceptible to changes in heat especially if it’s beginning to fail anyway. I’m getting the transponder part of the key replaced by a Volvo dealer in the next week or so for around £230 which includes the new part and coding to the car. Not cheap but better than having a car the doesn’t start! So if your XC90 ever leaves you stranded with the ‘Start Prevented - Try Again” error message try cooling your key for a few minutes and maybe it will work for you too. Incidentally - when I mentioned all of this to the Volvo garage they said they had never heard of it and I don’t think they were convinced about my diagnosis! |
The Following 10 Users Say Thank You to SimonFD For This Useful Post: |
Dec 16th, 2021, 10:07 | #2 |
New Member
Last Online: Apr 11th, 2024 13:03
Join Date: Dec 2021
Location: Leicester
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Hoping you see this simon as I’m at my wits end. Got the same problem. Did the new key sort the issue?
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Dec 16th, 2021, 10:36 | #3 |
The Brit Brick
Last Online: Aug 13th, 2023 09:39
Join Date: Jul 2021
Location: Warwickshire
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These keys do seem to be getting a bit flaky as they age.
BTW, an entirely new key, blade, case, remote gubbins, transponder, programming, the works, was only £230 from the dealer when I bought one. In my case I dropped my keys and it simply stopped starting the car at all.
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2005 C70 2.4T Collection convertible. 40,000 mile sunny day toy. |
Dec 16th, 2021, 10:39 | #4 | |
Me ? Surely Not!
Last Online: Apr 25th, 2024 19:48
Join Date: Jul 2010
Location: 2007 Volvo XC90 D5 Geartronic. South of Hadrians Wall.
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Quote:
He was last online in September 2020. You could try sending him a private message though.👍
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“Do the right thing. It will gratify some people and astonish the rest.” – Mark Twain 😊 2007 Volvo XC90 D5 SE Geartronic |
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Dec 16th, 2021, 14:11 | #5 |
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Last Online: Apr 11th, 2024 13:03
Join Date: Dec 2021
Location: Leicester
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Yeah I saw it’s been a while. Was very much an on the off chance! I think I’m gonna have to bite the bullet and go for the new key. Simons description above mirrors what’s been happening with me. The only thing I can think now is a new key but just the fact it happens with both my keys made me doubt it. But I’m out of options now I think haha
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Apr 11th, 2024, 15:33 | #6 | |
New Member
Last Online: May 15th, 2024 12:26
Join Date: Jun 2018
Location: Stoke-on-Trent
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Start prevented
Quote:
Thank you |
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May 10th, 2024, 11:58 | #7 | |
Junior Member
Last Online: Yesterday 22:32
Join Date: Feb 2019
Location: Derry
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Quote:
I have one key that will throw start prevented all the time and one that will work 90% of the time. I've changed the ring antennae to no avail. Seen this post and lobbed the non working key into the fridge for an hour, took it out and lo and behold it starts the car. I don't know how useful this info will be to folks but maybe a quick fix to get someone out of trouble. Thanks |
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May 15th, 2024, 11:57 | #8 |
New Member
Last Online: May 15th, 2024 12:26
Join Date: Jun 2018
Location: Stoke-on-Trent
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There is no need to leave it that long. Just 1 minute will do. Or put it next to a cold can of coke. At least it will get you started 😂
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