Any update on fuel gauge fixes?

Mine just did it for the first time as well. 11,500 miles. I'm curious how real this has gotten! Such a simple, silly issue, but a very important one.

 

I can almost guarantee that it is the fuel tank sender. They use a "wiper" over a coiled rheostat on a circuit board. When it wears a spot, it goes to open circuit briefly, which corresponds to a full reading on gauge. Software does have a delay built in, so it doesnt vary up and down while driving. It was called a slosh module in the 80's. Problem is once tank sender board has worn out spots, no amount of software will actually stop anomalies. What causes it? Cheap parts, riding on a train bouncing around on one spot, habits like putting $50 or whatever in every time vs. filling and letting it not always be sitting in similar spot. Incidentally this problem was widespread during my tenure at Ford for a couple decades, even on my Ducati motorcycles.

 

I posted a YouTube video of my first ever fuel gauge issue. Hopefully this gets some traction and helps highlight the issue: https://youtu.be/MfK6gsQJ8aA

 

Question: Did you try just putting in park, shutting it off and then restarting it first? I guess I'm wondering the significance of shutting it off in gear from a design standpoint.

 

Yes I did when I got in the truck to come home from work, it still read too full. It was as if I had a full tank starting this morning then the gauge was going down proportionately with my commute to and from work. What you see in the vid is when I got home from today's commute.

 

Thanks for the helpful info. I will have my local dealer start a TAS case to help push the case forward.

 

I had the TSB performed in early summer (at least I think it was around that time), and things had been fine until a long road trip a couple of weeks back. Right before my drive back home, I filled up and it still shows only about 3/8s of a tank. It corrected to full after driving about 20 miles. Then this morning, I was magically back to full when I had 3/4 tank when I went to bed. This stuff is very frustrating (had a few other different issues). Beginning to regret selling my ‘18 CM Limited to buy this turd.

 

The first part would probably be normal IF ignition was in ON position while filling. It's a software delay that 'averages' tank sender signal so gauge doesn't fluctuate around. corners etc like the old cars

 

I never fill with the ignition on. I had roughly 15000 miles on it at that moment and it’s the only time it has happened.

 

I agree... Get those TAS cases filed.

 

I concur.(3/4 tank trigger) Happened first time today on my ‘23 with 3300 mi. 3/4 full and parked nose first in a sloped driveway. Started on the driveway an hr later and it jumped to Full with new mpg figure and DTE miles. Will try these 2 resets tomorrow on level ground. Wonder if backing into the driveway would stop this from happening?

 

No it won’t. I back my truck down my driveway and have this problem.

 

Sigh, had this happen on my brand new 2024 Limited with its first tank of gas. Was hoping they had this fixed before I took possession Monday. Will try the work arounds when I get home tonight.

 

Interesting....I thought 24s got the revised sending units

 

Well if they did, the new units are just as broken

I was good Monday and then on Tuesday parked in my driveway (nose up) with about 3/4 tank. Turned truck off then when I turned it back on I was showing full.

EDIT: Got home, parked on level surface instead of my sloped driveway, then did the workaround using the odometer press and hold. Fuel gauge returned to what I believe is true and accurate.

Come on Toyota!!!

 

I’ve had this happen twice on my 2024 limited. I tired stopping, putting it in drive, turning it off, then moving the shifter to park but nothing happened. The odometer button fix worked though. Really annoying that this hasn’t been fixed.

 

Mine did it again today, 2nd time this month. 3/4 tank in the driveway overnight. Started up this am and Wham - Full tank. I've found a faster way to reset though with no button pushing. Just pull over, hold the brake, shift to Neutral and shut off the engine. While it's still there in Accesory mode watch the temp gauge and fuel gauge and they will both reset in 5 to 10 seconds. Just tap the Start button again, shift to D and drive away. WE NEED A SOFTWARE PATCH TOYOTA !!!!!

 

I had a 2022 dealt with this issue for over a year , traded for a 2024 Limited 4x4 First week it malfunctioned. 2 weeks ago I was told they were given ECM cluster software that only Toyota tech has . My dealer installed it. Gauge worked great for almost 2 weeks, my driveway does have a slight incline. Last Thursday it all went to hell. Called customer service opened a new case. Waiting for case manager to contact me. Truck has 450 miles. Love the truck but this is Bull **it. What is a hard reset / recalibration . I can't find anything on that. I'm suppose to speak with my case manager tomorrow. Most of these guys have no technical knowledge. The last case manager I had was useless. I believe the issue is, two sending units should have been installed in this tank . Then software can average the two and come out with a proper level. The other thing about this issue . Is it only the 32 gallon fuel tanks having this issue. Are the 22 gallon tanks affected . Also when I spoke to the tech after they did the reflash, he said he thought Toyota may be trying to change when the ECM speaks to the fuel sensor . Based on data from the G sensor. If the vehicle is on an incline based on G sensor angle it will not check fuel level. Until a certain sensor angle.

 

I just bought a 2024 Tundra SR5 Sport . . . has roughly 1200 miles on it as of this writing. The problem persists. Had about 3/4 tank, parked it with the rear of the truck slightly down slope, when I got back in it it registered a full tank with the DTE reading 484 miles. I put about 50 miles or so on this tank of gas, it registered correctly when I topped it off. Today I got the 24TA02 recall notice so I'll "chat with" the service techs when I see them. Makes me think I should have kept the F150??

 

Had 2022 Tundra Platinum with faulty fuel gauge Dealership tried for over a year to fix it. Couldn't fix it.
IT'S A SAFETY ISSUE GOING DOWN THE HGIHWAY AT 65 MPH AND THE TRUCK RUN OUT OF GAS. Manually tracked my gas with pen and paper.

Told them its time they take the truck back, said for $12 they would put me in a 2024. Nope. Mentioned LEMON LAW--all got quiet.

Texas Lemon Law is awesome ad not too painful.
**Key is that you have documentation show the first time dealer tried to fix it because the depreciation is based on that mileage.
Mine was basically new, couple hundred miles.

LEMON LAW: Toyota paid me 100% for the 2022 and since they were high at the time due to covid recovery and inventory. I now have the same truck, 2024 Tundra Platinum for less than I paid for the 2022.

Its ridicuus that the Toyota engineers can't fix this after 2 years.

I guess the Sequoia must have a different fuel sending system, I thought it might be the same but that vehicle I don't think is have the problem.

 

You hit the nail on the head - the ECU is not programmed right. Every tank will read wrong when unlevel. They all have but one sensor. This is nothing new and tank size doesn’t matter. 2 sensors aren’t needed. It’s the frequency of reads and averaging this truck is doing wrong. So what if reads wrong in the driveway. It should correct itself constantly as you drive averaging the read like all other Toyotas do. (any brand for that matter) The code should not be resetting it to Full and then calculating usage from there.

 

Brings up an interesting point. This "problem" only seems to happen when the truck is nose up. Why doesn't it do the reverse when you're ass up and show you have less fuel than actual

 

Yup. If I had say a quarter tank of gas in my old Silverado, the thing would tell me I needed gas if I did something like back down a boat ramp and let it sit for a minute or two. But once back up on level ground, bingo, back to reading normal. Can't be that hard to figure out if even GM had it right back in 2012 (the olden days).

 

I’m guessing the ECU sees the higher level on the incline as a FILL or partial fill and recalculates the DTE based on the new higher level. They probably didn’t want to see the DTE jumping around so they hold the new higher reading which is wrong.

 

My dealership told me they couldn't reproduce it and that they couldn't do anything. I've had it happen 3 or 4 times.

 

Same and as stated earlier, only at 3/4 tank. If it gets down below that it in a trip it doesn’t reset to full.

 

Like I posted before. Do your state’s lemon law and get a new truck. Was easy.
It’s a safety hazard.
Got 100% refund for 2022 and got same truck cheaper now for 2024.

 

But the 2024 has the same problem.

 

And if my 2024 does it I will be at dealership to start the first report so I’m protected if I have to do another Lemon Law exchange. These engineers are going to cost Toyota a lot of $$ for something that is fixable. Fuel tanks aren’t complicated. Would be cheaper to convert to the Sequoia system—it’s not broke, why?

 

Did anyone else NOT GET a second key fob with their new Tundra?
5 months now and only one key