2008 Prius gas gauge not working

So your gas gauge is present on the dash You just haven't seen it move yet yeah run it to 350 mi are almost 400 that's 40 mi to the gallon you should use about 10 gallons 9.4 whatever so see how that works out maybe all of a sudden when you get to 300 mi the thing will drop to a quarter tank immediately or something maybe not You've obviously turn the car off and back on. But that is pretty wild so it's like stuck in the full position float all the way up or whatever It's pretty good but that's how I drive mine all the time I put like 410 mi I'm usually by then the fuel light is getting ready to flash and I'm pulling into sheets

 

It is quite normal to stay on the first pip for a long while and at 250 mi it is probably getting to the point where the first pip will disappear.

And, yes it is quite possible that replacing a few battery modules will improve the fuel economy if the repair was done well. You're probably just not used to how the car behaves when it is working well.

So I'd say just be patient and your gas will disappear quick enough. If you get to 500 mi then you might need to look into it.

 

Usually in most generation twos that I've sat in at 250 I should be just at a full half a tank. The pip that's just one above the half a tank is fading and turning off as I'm hitting 250 in it well running set up that is and then I'll be flashing requiring stopping for gas somewhere between 4:20 and 500 depending upon the car It's been very much a toss-up on all of these things 420 seems to be the norm actually and this is for people that are driving the car the car is not driving us The car is generally reporting right around 45 consistently never falls below that generally speaking If it does then I'm going to be getting 365 miles to that tank of gas I can almost tell by looking at the MFD and not even looking at the gauge what my total tank miles are going to be for this particular tank.