Brother's 2023 Tundra won't start, dealer clueless (SOLVED)

That's certainly a possibility that would suck.

The next time the truck doesn't start, I would methodically turn off any electronics around the house, one by one. With any luck, it's something simple like the garage door opener.

 

Might have to conctact the local FCC field office. They may be able to assist in identifiying the interference. https://www.fcc.gov/reports-research/guides/interference-complaints

 

So its not solved

 

Haha. Yes, technically you're correct. It's been determined, not solved. Thus far, there is no solution.

 

Try to get them to bring another Tundra to the same location. If that truck does not start as well, you can be fairly confident that it is a Tundra problem.

 

since when is a rogue radio interference a toyota problem? this harkens back to the pirate radio stations in vehicles to fool FCC people (if you are old enough to remember those)

 

This right here. Prove it.

Did they give him a loaner? If so it is obviously starting up with no interference. How about any other vehicle? No problems at the place, then it is a Toyota issue.

 

This is where Toyota thinks your brother lives.

 

The "field specialist team" explaining the "interference".

 

I have a 2024 Tundra. I've been to his place a couple times since I've owned it and no problems for me. But his problem is so intermittent, that I'd have to move in with him to see if it happens to me too. He's got a 2 yr old and a newborn, so no thanks!

 

If you guys check out the link I posted earlier, you'll see the radio frequency interference with FOBs is a real and fairly common problem. And it's not just with Toyotas.

That doesn't make it any less frustrating for the OP's brother, but finding the problem is half the battle. Finding the solution is the other half.

 

Trade trucks with him for a couple weeks. Beat his up the mountain in 4lo while yours gets to sit in his driveway, cranking start couple times a day. A win win… for you.

 

Haha! good idea.

 

I looked up the FCC ID on the key fob it uses 314.35Mhz and 312.10Mhz

and the RFID part uses 134.2Khz.

Lot of different things use that frequency so it could be other brands key fobs or also chamberlain uses that frequency so possibly a problem with the garage door opener nearby.

 

Faulty 110 volt LED light bulbs (not in the vehicle) in a garage, etc. etc. especially the cheap ones can emit interference that will block low power RF signals. Have seen it cause garage door openers to not work or only have just a few feet of range. Disconnecting these or unscrewing them all of a sudden normal RF operation is resumed. Probably not what is going on with said vehicle but it is food for thought...

 

Yeah that just came to mind that some LED bulbs interfere with that 300 mhz range

https://www.allstyledoor.com/blog/l... drivers inside,can interfere with each other.

 

Baby monitor is my guess.

 

It was that Elf on the Shelf the whole time

 

I've experienced this.

 

No shot, OP said his brother has a 2 year old and a new born. I’d argue this would destroy the interior way faster than driving the other truck in the mountains in 4LO. That backseat stands/ area stands no chance with babies and toddlers. His truck would come back equally as ruined hahah

 

To add insult to injury you don't have tow hooks to drag the truck out of the driveway and down the street away from the dirty RF.

 

@SM Tundra I've cleaned up my daughter and SIL vehicle a couple times; 4 children, 7/5/3/and 6months. It is TRULY an experience and generally takes all day. Shop vac gets a great workout! Fortunately leather seats can be scrubbed pretty well and then conditioned. Carpets--well, they take time to dry after cleaning.

 

OK, Ok, you got me. We never had kids. lol.
Wouldn’t it be ‘funny’ if it’s the baby monitor as Timmy suggests.

 

Yea I’ve had to ban certain snacks to keep the mess to a minimum, plus have a seat cover in the back to help keep the mess down. But it seems no matter what I do it’s always a mess!

 

Most modern garage door openers operate at 315 Mhz, which is the same frequency as our FOBs. Just saying.

 

There are plenty of cheap scanners that will receive in that range. Get a handheld and listen to see what you can find. The signal will be stronger close to the source and you can narrow down the problem that way. I had some odd interference on radio (I'm a HAM radio operator) and on my TV back in the days of analog TV. I tracked it down to the doorbell transformer. Nowadays, a lot of wireless home alarms operate in the 315mhz range.

 

If this turns out to actually be due to EMF interference, I will eat my humble pie and donate $50 to OP’s charity of choice.

.. but I’ll bet nobody looked at the battery connection *at the starter* or the ground cable terminations yet.

 

Guess what frequency the buttons on the mirror work at?

 

That might be handy. Open door, truck starts.

 

RF is everywhere. As stated earlier, specs state the system must handle noise. Smells like the receiver in the truck is not filtering the noise out.