Hazard lights not working
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
Hazard lights not working
Anyone else had this issue before? Is there some kind of special way to activate the hazard lights aside from pressing or holding the hazard button? I’ve tried both and nothing works. Video attached for reference.
Advanced
Joined: May 2021
Posts: 722
Likes: 315
From: Georgia
In the good ole days, a flasher was simply a plugin unit under dash bout the size of a quarter that could be easily replaced like a fuse. I have no idea how the flashing is controlled with today’s electronics. However, I must admit that in all my 35 years of driving a Toyota, that I have never experienced this issue.
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
In the good ole days, a flasher was simply a plugin unit under dash bout the size of a quarter that could be easily replaced like a fuse. I have no idea how the flashing is controlled with today’s electronics. However, I must admit that in all my 35 years of driving a Toyota, that I have never experienced this issue.
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
UPDATE: Went to the dealership to have it checked out. Asked if it was covered under warranty as it's a safety feature. They said the vehicle had 4 year/50K miles by default. Vehicle was warrantied in Aug 2017, so it's out of the warranty period, go figure. Vehicle passed inspection in June of 21 (VA inspection) so that means the hazards were working at that time. I didn't check if the hazard lights worked upon initial purchase, because that's honestly the last thing on my mind "do the hazard lights work?". Anyway, I say that to say, I had to reschedule the appointment to Wednesday this week, because I was informed that it would take 2-3 hours of teardown to get to the switch to test it and see if it's bad. At $160 an hour I'll be spending over $500 just for them to tell me whether or not that's the problem, and if it is something that's irreparable, the Button, of course, is attached to the climate control and it's a whole unit, which quoted by Lexus was a lovely $2800. I'll be regularly updating this so if someone else ever has this issue, they can reference it and hopefully learn vicariously through me.
Thanks for listening to my TED talk.
Thanks for listening to my TED talk.
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
yes, the blinkers work as they should. Same with the brake lights, so all the lights controlled by the hazard switch work by themselves, but the hazard switch seems to be dead for some reason.
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Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
BTW, I sometimes use them if some jerk is following me to closely on the FW.
Instructor
Joined: Aug 2010
Posts: 887
Likes: 172
From: AZ
That's a lot of teardown effort. I wonder if you could get a schematic and find a harness access point where you could ground the appropriate wire and see if the lights flash? And how you would do it is connect one end of a wire to ground and the other to a sharp probe and just penetrate the wire coating.
If the hazards use a relay (they are either relay or computer controlled), it might be worth it to just take a chance and replace the relay.
Just some ideas.
If the hazards use a relay (they are either relay or computer controlled), it might be worth it to just take a chance and replace the relay.
Just some ideas.
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
That's a lot of teardown effort. I wonder if you could get a schematic and find a harness access point where you could ground the appropriate wire and see if the lights flash? And how you would do it is connect one end of a wire to ground and the other to a sharp probe and just penetrate the wire coating.
If the hazards use a relay (they are either relay or computer controlled), it might be worth it to just take a chance and replace the relay.
Just some ideas.
If the hazards use a relay (they are either relay or computer controlled), it might be worth it to just take a chance and replace the relay.
Just some ideas.
Last edited by Shermang; Apr 27, 2022 at 08:23 AM.
Thread Starter
Driver
Joined: Jul 2020
Posts: 71
Likes: 22
From: Virginia
UPDATE:
I was told “The tech found a poor pin fit at the connector, once properly installed the hazards are working.”. So thank God it wasn’t the whole assembly or something else, a simple fix. Thanks for everyone who chipped in with advice.
I was told “The tech found a poor pin fit at the connector, once properly installed the hazards are working.”. So thank God it wasn’t the whole assembly or something else, a simple fix. Thanks for everyone who chipped in with advice.
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