Engine cutting out

[George]

The engine on my Alphard Hybrid 4x4 sometimes cuts out when I am driving through the Tyne Tunnel which runs under the River Tyne. It normally cuts out as I am reaching the bottom of the tunnel (half way). I have to brake, turn the engine off and then restart it, then carry on with my journey. It doesnt happen every time, about every one in 3 trips and it only happens in the tunnel. Any ideas

[MarkATH10W]

That sounds super sketchy.  Is it charging the battery the whole time as you descend to the bottom of the tunnel?  What is the battery level according to the display on your the hybrid information system on your display?

 

I wonder if it is cutting out to prevent overcharge; something to do with that?