Technical Blue and Me Tomtom Time vs Car Time

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Technical Blue and Me Tomtom Time vs Car Time

Mick F

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Strange question here, and probably no answer to it. Not really a statnav question, but a car AND satnav question.

It's fairly well known that the time display on the dash of 500 doesn't keep time very well. Ours seems to lose a minute (or thereabouts) a month and needs correcting periodically.

We have the TomTom2 Live unit and the B+M system works well. Being a GPS device, it has an accurate time from the satellites of course. If it's switched on without the car running, the time is spot on. If I take it out of the car and switch it on, the time is spot on too. Go to Settings/Clock and it says
Your clock is kept synchronized with the satellite clocks. There is no need to set it manually.

However, it seems that it defaults to "car time" rather than "GPS time" when its in the car with the engine running. Consequently, when the car clock is slow, so is the TomTom despite having it set to automatic.

Just experimenting, I set the car clock to five minutes slow and switch off. Then switching on the ignition and letting TomTom settle, it reverts to five minutes slow like the car. When I switch off, TomTom shuts down, and the last thing that is displayed is
Synchronized to London time.
Then, if I switch back on, TomTom flips to five minutes slow!

This all seems rather daft to me.
Any ideas?

Thanks,
Mick.
 
Last edited:
Strange question here, and probably no answer to it. Not really a statnav question, but a car AND satnav question.

It's fairly well known that the time display on the dash of 500 doesn't keep time very well. Ours seems to lose a minute (or thereabouts) a month and needs correcting periodically.

We have the TomTom2 Live unit and the B+M system works well. Being a GPS device, it has an accurate time from the satellites of course. If it's switched on without the car running, the time is spot on. If I take it out of the car and switch it on, the time is spot on too. Go to Settings/Clock and it says

However, it seems that it defaults to "car time" rather than "GPS time" when its in the car with the engine running. Consequently, when the car clock is slow, so is the TomTom despite having it set to automatic.

Just experimenting, I set the car clock to five minutes slow and switch off. Then switching on the ignition and letting TomTom settle, it reverts to five minutes slow like the car. When I switch off, TomTom shuts down, and the last thing that is displayed is Then, if I switch back on, TomTom flips to five minutes slow!

This all seems rather daft to me.
Any ideas?

Thanks,
Mick.

That's FIAT logic:shrug:. If only the car clock could be synchronized to echo the Satnav, it would save the regular resetting.

If you un-tick clock synchronization in Connections/B&M/B&M Preferences at least you'll always know the Satnav's on the right time.
 
That's FIAT logic:shrug:. If only the car clock could be synchronized to echo the Satnav, it would save the regular resetting.

If you un-tick clock synchronization in Connections/B&M/B&M Preferences at least you'll always know the Satnav's on the right time.
So it's a FIAT issue then? Why does this not surprise me? :bang:

Why the heck the two clocks couldn't be in sync AND correct, we'll never really know.

Thanks for the B+M Preferences idea. I'll un-check the clock sync. That'll help a bit.

Cheers,
Mick.
 
Slight update .......................

At the end of last month, our subscription to Live Services ran out and I initially thought, "What the heck? Who needs it anyway?"

As it happens, I thought that something was wrong and did a factory reset, but obviously nothing was wrong, it was the subscription expired. Meanwhile, I decided to pay the £48 and get a renewal as Mrs Mick F likes it. She Who Must be Obeyed won the argument! :worship:

All is now well, except that the time issue is wrong again, and try as I might, I couldn't remember how it was done. I had to find this thread to find out. (y)

Any road up, the TomTom time is now correct and the car (as usual) is wrong.

Thanks again,
Mick.
 
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