Thanks!! Is that second picture the view from looking up from under the steering column? Is that the fuse box I see? The flasher looks a lot easier to get to than described in prior years.
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That's entirely possible. Or I may have gotten a defective one. But it was the only one they had, so I couldn't exchange it. I did order one I found on Amazon yesterday: https://smile.amazon.com/gp/product/B008C9YS0YThe basic version of the same flasher (no extra features) is only $15:
CF18 (LM449) LED Turn Signal Flasher
Features Compatible with LED bulbs Prevents hyperflash errors Simple swap for original module Plug and play, direct fitment and proper sizing Flasher Hyperblink Fix. Why do you need this module? When your factory turn signal bulbs go out, your vehicle's flasher senses that less power is...www.diodedynamics.com
But it ends in 4650, so I'm not sure. I never heard of anyone else having the issue you have. I wonder if the AutoZone special was just not good quality.
It actually looks EXACTLY like the Diode Dynamics unit, and even the wording is identical. It'll be here tomorrow, but right now, the car is at a detailer getting some paint correction done, so I won't be able to try it out until at least Friday.
Hi Nigel, welcome to the forums! 
I ended up buying this flasher module on Amazon, made by iJDMTOY: https://smile.amazon.com/gp/product/B008C9YS0Y
I had tried what seemed like a similar one from AutoZone, but when I put the AutoZone one in, my hazards wouldn't work. Indivdual turn signals were fine, but no go on the 4-ways. But this one from Amazon works fine.
As far as bulbs go, I went with bulbs from my trusty supplier, SuperBrightLEDs. I kept trying different bulbs from Amazon and eBay with built-in resistors, but they were never consistent. It seemed like they would heat up and then cause less resistance. If I was sitting at a long traffic light with the blinker on for more than about a minute, it would start hyperflashing. I was pretty much ready to give up on it until I discovered some threads here that led me to learn that the flasher in the CT is replaceable. Since a lot of newer cars don't have replaceable flashers, I assumed the CT was among them until I found the threads here. So I was able to return the bulbs with built-in resistors, and get the proper bulbs from SuperBrightLEDs.com without resistors, and they work beautifully.
When you say Tech Stream, what are you referring to? Does your vehicle have Navigation? Mine does (well, it's my wife's, not mine, but I'm calling it mine for purposes here). With Navigation, you can program the number of flashes through the menus. Without navigation, you either need some kind of software and a device to connect to the OBD port (is that Tech Stream?), or the dealer has to do it. I don't know if it's programmable through the audio system or the "DISP" button on the steering wheel if you don't have navigation.
I ended up buying this flasher module on Amazon, made by iJDMTOY: https://smile.amazon.com/gp/product/B008C9YS0Y
I had tried what seemed like a similar one from AutoZone, but when I put the AutoZone one in, my hazards wouldn't work. Indivdual turn signals were fine, but no go on the 4-ways. But this one from Amazon works fine.
As far as bulbs go, I went with bulbs from my trusty supplier, SuperBrightLEDs. I kept trying different bulbs from Amazon and eBay with built-in resistors, but they were never consistent. It seemed like they would heat up and then cause less resistance. If I was sitting at a long traffic light with the blinker on for more than about a minute, it would start hyperflashing. I was pretty much ready to give up on it until I discovered some threads here that led me to learn that the flasher in the CT is replaceable. Since a lot of newer cars don't have replaceable flashers, I assumed the CT was among them until I found the threads here. So I was able to return the bulbs with built-in resistors, and get the proper bulbs from SuperBrightLEDs.com without resistors, and they work beautifully.
As TobiasSing mentioned, Diode Dynamics makes 2 flashers for the CT. I haven't tried either of them either, since the one I bought on Amazon works fine. There is one small quirk, which I will describe below.
Here's the experience I had with the flasher from Amazon, and the quirk I mentioned: I have the tap-to-blink feature turned OFF in the car. With the old (factory) flasher, Off was Off. With the new flasher, though, even with the setting Off, it still blinks 3 times if I tap. If I set it to any of the numbers other than Off, it will blink the correct number of times. So for me, Off = 3 blinks, 3 = 3 blinks, 5 = 5 blinks, 7 = 7 blinks, 9 = 9 blinks, and 11 = 11 blinks.
Wow, that must be a nice thing to have!
I had to have the dealer program the window thing, and I also had them turn off the reverse beeper. Well, not turn it completely off, since you can't do that, but I had them change the setting so that it only beeps once instead of continuously. That continuous beeping was really annoying! I mean, hybrid or not, why do I need my car to beep at me when it's in reverse? I think I'd know if it was in reverse, especially wtih the backup camera screen looking right at me. Anyway, that may be something you wish to turn off as well.Is it the same relay?
Since I didn't buy the Diode Dynamics relay and just bought a more generic one from Amazon, I was assuming that it did not have the tap-to-blink logic built-in, since it was cheap. There was no mention of tap-to-blink in the Amazon description. But who knows, maybe it does have that logic.
That is a nice feature! The CT does not have that by default. The inside lights will stay on for about 30 seconds or so when you unlock, but not the outside lights.
I did, however, recently discover something else kind of cool: Even without unlocking with the fob or touching the handle, as you get up next to the car, if it senses the key fob, it will turn on the inside lights. Kinda neat that it will do that without you having to even unlock it!
Yeah, we were looking for one with navigation specifically because of the backup camera being on the screen and not in the mirror. Seems that the CT has 3 options as far as the backup camera goes: 1) None at all; 2) In the rear view mirror for non-navi models; or 3) In the screen for navi models.
The forward-facing LEDs are nice for the front, although I have found them to be actually TOO bright in the rear. I have some bulbs with built-in resistors in my 2022 Honda Accord hybrid, since the Accord doesn't have a replaceable flasher module. There have been a couple of instances where my wife and I were in each other's cars, and I noticed that at night, the turn signal bulbs were VERY bright -- almost blindingly so. So now I feel bad for people behind me! The bulbs I got from SBL for the CT are also pretty bright, but not as bright, and also, the bulbs go in on kind of an angle in the CT, so the LED SMDs on the end of the bulb are actually facing diagonally up, not straight out, so they aren't blinding.
Yeah, I was kind of disappointed about that, too. I believe LED headlights is an option on the CT, at least on later models, but the one we bought didn't have them. I have never actually seen one with LED headlights, though. There are apparently other options that are also not on all cars. For example, while our CT has full power seats, it does NOT have the seat memory option for the driver's seat. I believe that's because our CT has the NuLuxe synthetic leather, and you only get the memory option if you have the genuine leather package (which, as a vegan, my wife would not want to have).
I had actually installed LED headlights from SuperBrightLEDs, both low and high-beam, in both the CT and my wife's mom's 2013 Toyota Corolla. I had even installed them in my wife's previous car, a 2015 Honda Fit. However, shortly after, I had read that that's not a good idea, because the headlight housings are designed around the dispersal pattern of halogen bulbs, which is different from that of LED bulbs. So when you put an LED bulb into a housing designed for halogen, the result is that you get a "wall of light" that blinds oncoming drivers, but actually does not project down the road nearly as well as the halogens, so it becomes a safety issue on both fronts. With that in mind, I put the halogens back and returned the LEDs to SBL.
Sounds good! Look forward to seeing some pictures.
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