Hey thanks so much for your video, my 2009 Chevy was having the same issues! You saved me a trip to the parts store for new bulbs!!! You helped me fix the problem👍🏽

In the history of putting stuff in a bad location this has to rank pretty high. Thanks for your post. Just what I needed.

I was driving with my kids in 2018 Silverado completely stock, no modifications at all and suddenly...lost power for about 45 secs... Pulled off as best as i could... Got the alert "theft detection" and to cycle driver side window up and down.. restarted the truck and the turn signals were sending a fault and flashing faster than normal... I was thinking the worst ... Checked all fuses and relays.. wondering what in the world is going on.. then o found your video and tried it.. they were full of corrosion and dirt.. electrical cleaning spray and dielectric grease .. no more issues... You saved me a ton of $ and time .... Thank you ao much... Very grateful to you for making this video.... I find it crazy that one electrical plug related to turn signals can shut the entire vehicle... I think Im gonna be switching to something more "old school" maybe a 80's bronco or something i can actually work on

Just ran across this video!!! Thanks so much for posting. I did what you recommended to my 2012 Silverado, and it fixed the same issue you had. Can’t believe it!!! I was thinking BCM the whole time.

Thanks, man, this was just what I needed. My '08 Silverado started flashing fast, but all the elements were still lighting up. Popping the leftmost (driver side) blue connector was the one that I think did it. I did them all, off and back on, didn't notice any dirt or corrosion, but the contact must be improved anyway, 'cause now I've got normal blink speeds! Very helpful and well done.

Jimi you saved my wall. Yes I was about to beat it down with my head. 🤦🏼‍♂️ Only AFTER replacing bulbs that were still good and a fuse that was also, still good did I find your video. Went straight outside cleaned the sand, grit, general debris. And *PRESTO*! Thanks man. I appreciate ya.

Got to love KZfaq. Glad I found this. My 09 GMC Sierra did the fast blinking with nothing happening at the left rear. This was after a fuel pump replacement. Found that connector after watching this video and found it wasn't fully seated. Had to clean the dirt and corrosion around the plug so it would seat completely and my signal works again. I need to get rid of this old crusty truck lol.

I had the same symptoms on my 2012 GMC Sierra - no left rear turn signals, although bulbs were good. Front signals worked, but blinked very fast. Your suggestion worked. I took the plugs off the junction box, put them back on and that fix the problem. Thanks!

Mine had some corrosion on the top (gray plug). Went ahead and removed the board that all the plugs on it and ran some sand paper across all the terminals. Worked like a charm so thanks! Always appreciate a free fix .

Thank you for your toubleshooting expertise. These corrosion problems are difficult to find!

I had exact same problem on my 2010 Chevy Silverado. I watched this video, took your advice and now it works great. Thanks!

Man I've been trying to figure out why my break lights wouldn't work when my turnsignals were on and this helped. Thanks man

THANK YOU JIMMY 💯💪🏽🙏🏼!!! Simple fix saving $500.00. YOUR AWESOME 🤙🏼

Thank you lots from the 49th state! Much love and thank for the much needed advice.

Hey same problem here thanks for the video you saved me several headaches and a lot of troubleshooting!

Thank you so much for this video. Right turn signal/BrakeLight/Reverse Light not working. Spent a lot of time researching what could be my problem. This video fixed my problem in 2 minutes. I have a 2010 GMC 2500.

Just got a new battery, left the place and I had a left rear turn signal issue. Gonna give this a go! Appreciate it!

I referenced your video to check my 2011 Sierra 1500 this morning. My driver's side signals don't respond in any way but the hazards do so I was thinking this had an outside chance of being the source of the issue. Still I really appreciated the video and it got me looking at a part of the truck I wasn't aware of. Last week I changed out the rear differential oil so I got to see how dirty and rusty the area was (the top of the spare which may have never been dropped before this was totally filthy). I was actually surprised to see how clean the insides of the four plug connectors in the area were. I'm going to look more around the Body Control Module (BCM) wiring and possibly the BCM itself. Thank you Jimikiwi!!!

I had alot of gravel dust in my connectors, sure enough tapped em out and whalla! they worked again, cool beans, saved me some money, thank you ever so much ! My blue connector had the worst gravel dust, the gray one medium dust, and the white one just a little, im thinking it was the blue one that was causing the issue. I wish he would have said which one was the real culprit, Jimi if you read it you can let me know thanks, i think ill buy some connector grease though for it later, i know they sell that stuff at the auto store, anyway thanks a bunch once more. Now its back, 2 days it was fine now start all over, back to square one, maybe i'll update, who knows.....grrrr

Glad I came across this video! I have this problem and all bulbs work so I’m hoping this is my problem! Thanks for the info!

Same problem on my 08 Silverado . your fix worked. Thanks !!

Thank you, same truck same problem. You saved me a lot of time looking

Cleaned those up didn't look corroded and that was the fix. Took the trailer plug out and cleaned all the dirt out of the plug. 2008 GMC 2500 HD Sierra SLE.

Cleaned and greased these connectors and it fixed the problem for about two days. Not sure what else could be going on here. All lights come on when using the remote start, but as soon as I toggle the ignition on, all bulbs in the rear driver housing go out. Driving me crazy!

Thanks man! Exactly what my 2011 Silverado has been doing

Thanks man. Saved my day. Exactly what was wrong.

Yes sir, first place I looked but haven't done it yet, thanks for the video

Worked for my 2011 Sierra 1500. Thank you!

Saved me a ton of money bud! Thank you!

Thanks My 2006 Silverado had the same problem . dealership wanted almost $400 to fix this $30 fix...

Thx for your info. Fixed my 2012 GMC Sierra.

Short and sweet, something for me to check! Also some Chevy trucks of 2000's era have a history of burning out the flasher relay found under the dash panel below the steering column, to possibly help future viewers.

Very helpful, thank you very much for posting, really appreciate it

Thanks so much this help me on my 2001 GMC my tail lights work great 👍

You are the man! I have looked everywhere for solutions. Thank you! Thank you!

Big Thanks fixed my truck !

NICE! Just what I needed...and it worked!

Thank you sir that was my issue exactly except it wasnt corroded it was literally hanging loose from the connection I just dusted it off and pushed it back in thanks alot.

Normally you don't have corrosion on the contacts/terminals in the connectors at that junction block, but you will have a lot of sand, grit, etc. that can lead to bad connections. Typical materials are steel that is coated to prevent corrosion, and nonferrous materials like copper and brass that do not corrode easily, but will given the right conditions. The connectors can also become loose just because of the location where the truck bed/suspension bounce around more than the front of the truck. Vehicles including trucks have a safety feature in the firmware that is looking for resistance in the wiring to ensure the bulbs are present and presumably working. For some vehicles, the firmware is only looking at the rear lights, which makes sense when you consider which lights are most important when it comes to safety. The car behind you is not really affected if you have no lights in the front of the vehicle, but is affected if your rear lights are not working. The firmware creates the "hyper-flashing" intentionally as a way to let you know you have a problem.

I have a 1997 GMC cut-a-way Savana 3500 and the blinker is also flashing fast; I have gone though about everything I can find, but after watching this I will go dig around and see if there is a connector I didn't find. LOL.

Thank you for this--im gonna go check my '14 chevy silverado. After a heavy snow, I used a set of chains that whipped the ever-loving daylight out of the wheel well (speed increased without pullout for removal). Next time I started my truck up, I had the issue with my rear passenger turn signal not working, and haven't been able to track down why. Based on location and what happened, I'll check this next.

Thank you I have the same problem with my left turn signal on my 2005 Chevy Tahoe I will try this tomorrow thx u

Hey dude! Thanks for the video! It worked! Everything is fine now! Thanks

Also you might want to check to make sure your blinker is not burned out

Same fix for my 06 Denali. Thank you!!!

FYI Turning the Hazards on will not show Hyper Flash they are designed to flash by timing and not by current so to test your blinkers put one on at a time.

Life saver brother

Thanks, Having the same problem, probably what it is, give it a look in the morning

Good information Thanks

Dude thank you! Mine were nasty! Used some wd40 contact cleaner

you definitely need to be a voice actor

This really helped me out haha 2023. 2012 gmc serria 1500 sle

Great video 👍🏼

Thanks Jim!

2010 GMC here. You should get a dollar form everyone that you have helped through this video! 🤑🤑🤑 Thanks!

Thank for the video! Will send my son the link to your video. He is experiencing the same situation with is 2018 Silverado on the right side. He has changed the bulb and it work for a few weeks then started messing up again. The dealership Service Manager told him it is the controller module. I don't believe it is the module. Will let you know what we find out.

Thanks big dog big help

THANK YOU!

Thank you. I first tested my hazard lights (they work fine) but no turn signal. I'll unplug and look for corrosion as suggested.

Yep step one

Just bought a 2014 and I have the same problem......... Thanks for the video I will try your suggestion and repost my results Thanks for the video 😎👍👍

Thank You!!

Thank you.

YeSir.u.The.Man...

Thank you

Thanks

Hey bud, I just saw this video after having the same issues with my 2011 silverado. I was wondering if you had to disconnect the battery before cleaning up the connectors?

Hello thanks for the video, sorry do you know where is the relay for the turn light and flasher for the silverado ?

What was GMC thinking, exposing those sockets to all that splashing crud?

Hoping this comment gets noticed. I have a 2010 Silverado 1500. Brand new head lights and tail lights. Wired correctly with load resistors. Checked all the fuses as well. But god forbid if I turn that switch to the right or left it keeps hyper flashing. Do you recommend checking those back connections at the junction box still as a potential fix?

What was the numbers of your tail light bulbs I come up with someone had missed matched bulbs numbers 3157 and 3156 I guess once it’s a little hotter bolt Thank you for your advice you helped me a lot

2010 GMC Sierra. Fixed it. Thanks.

Having a similar situation with my 02 Silverado. Do you think that would be the same set up and what did you use to clean the terminal ?

wow tnx

Do you think this would help as well, my right front blinker doesn't flash but the back does on passenger side . Drivers side is ok . I check fuses and all is fine I am gonna take all these cables off and give em a good cleaning

Well mr kiwi even if the turn signals are blinking hella fast when u put the hazards on its gunna blink at the normal speed cause it’s made for emergency’s.

I have the same problem on my 2005 yukon denali

I had an issue with back lights on a 97 chevy and it was the connector to the back of the light housing being loose.

Hey Jimmy I have a problem in my truck whit signal Ligths in one side do you think is going to the same problem??

Hi my GMC Acadia having the same issue..i just wondering if it is same problem as well?

That's the problem with those trucks after '07; the flasher is programmed through the BCM unit.

I have a 2014 and i dont see the connectors on the bottom rear where yours is located...

Nice, 👍🏼

How did you resolve the corrosion any recommendations for products thanks

My 2007 suburban right turn signal stays on even when truck is off any suggestions?

2008 Chevy Silverado. My blinkers work but I have no response sound when I use them. Also, front speakers don't work but my rear speakers do. Any advice?

👍🏻

Could you please give some idea. I've 2006 Honda Odyssey. Front right turning light not working. Light good, same side tail light blinking fast. I've no idea what to do. If anyone knows appreciated. Thanks.

Would it be the same on an 06 envoy?

That was it!? Mine didn't even look corroded, but I unplugged it and plugged it back in, works. Go figure.

mine keeps blowing the fuse, s soon as i try. Any suggestions??

Great! Anyone know of front drivers turn signal.. same thing, changed bulbs... work then no work .. and these bulbs are a pain to get at! Help?? 2017 Sierra SLT MODEL

What did you use to clean them?

I have tried everything except that I will try in the morning and Let you know

I have this problem but only with the left side not even my running lights turn on just the reverse light and my reverse light blinks instead of the turn signals my break light dont work on the left either

The same thing is happening but I changed evrything nd still nothing

I’ll give this a shot. Just not today.

Did you take all 3 off?

I know this is old... how did you address the corrosion?

Search all over the internet and still can't find the location for my turns signal relay.