mick164

..thanks Toe, all good for the last few days anyway with the new fob Battery.

..I put a set of Goodyear Eagle F1 Asymmetric 5's on the GS450h a couple of months back, and they've been a very nice tyre so far. There's a silky quiteness to them, they're grippy and they weren't too bad for a summer tyre down around 0C. They're not too pricey either..

..fingers crossed, but the new fob Battery seems to have done the trick.

The old Battery measured 3.04V, and the new one 3.40V, so yeah it looks like anything below 3.1V could be sketchy alright. It's probably worth keeping a fresh CR1632 handy as they don't seem to stock them on every street corner.

Thanks 🙂

..yes, both fobs.

So I suppose the first thing to try is the fob batteries, so I'll report back when they turn up. For the moment I can lock/unlock the car with the physical key, and start by touching the fob on the start button, though it's funny how tense you feel waiting for some sort of "can't detect key" message to appear just as you stab the go pedal down a clear on-ramp 🙂

..thanks John.

The batteries in both fobs measure 3V, though I've ordered some new ones. That's a good point about the the heat in my pocket.. I thought maybe the 12v Battery was heating up enough in the morning sun to bring it above some threshold 🙂

Hi all..

This is sort of an observation and a question.. my GS450h has been parked up for nearly 2 weeks now, and the keyless entry has become erratic.  I can't open or start the car first thing in the morning, then 20 minutes later it's fine.

I measured the 12v battery at 12.35v after sitting all night.. is this low enough to mess with the keyless entry?

Thanks 🙂