Dash brake light stays on - The 1947 - Present Chevrolet & GMC Truck Message Board Network

muley · 04-04-2019, 02:37 PM

I've got an 89 GMC K2500 that the brake lights would stay on after you got off the pedal. You had to pull the brake pedal back to get it to shut off. I changed the brake switch under the dash and that fixed that problem. But the next time I drove it, the brake light in the dash came on. It doesn't flash, it's just on. If you engage the E brake, the light gets brighter.
Did changing the switch cause this light to go on? The brakes act perfectly fine. Just an annoying light.
Hoping for a solution here. Thanks for any help.

**Mr_Rich** · 04-04-2019, 03:18 PM

My '89 behaves similarly. I just pull the brake pedal back with my toe about an 1/8" to get the brake lights to go out. I have a rear disk brake conversion so my brake light (on the dash) acts weird because of ABS but my stopping power is very good including panic stops. That's a separate issue though.

ChevyTech · 04-04-2019, 06:00 PM

Here are two links to threads on this topic at this board and a link to another board I post on. I have some very good threads on the other board.

You can do a search on either board of my user-name and RWAL to find many threads that should have everything you need to diagnose this problem.

http://67-72chevytrucks.com/vboard/s...d.php?t=399153

http://67-72chevytrucks.com/vboard/s...d.php?t=302690

https://www.chevytalk.org/fusionbb/s...php?tid/262169

muley · 04-04-2019, 08:13 PM

Thanks ChevyTech. This is far more than I knew before.
Really appreciate it.

04-04-2019, 02:37 PM	#1
muley Registered User Join Date: Aug 2013 Location: Homedale, Idaho Posts: 160	Dash brake light stays on I've got an 89 GMC K2500 that the brake lights would stay on after you got off the pedal. You had to pull the brake pedal back to get it to shut off. I changed the brake switch under the dash and that fixed that problem. But the next time I drove it, the brake light in the dash came on. It doesn't flash, it's just on. If you engage the E brake, the light gets brighter. Did changing the switch cause this light to go on? The brakes act perfectly fine. Just an annoying light. Hoping for a solution here. Thanks for any help. __________________ Grandpa 1953 M38A1 Jeep 1989 GMC K2500 1958 Alaskan Camper all original WORK : A necessary evil that finances what I really like to do.

04-04-2019, 03:18 PM	#2
Mr_Rich Registered User Join Date: May 2006 Location: Yucaipa, Calif. Posts: 795	Re: Dash brake light stays on My '89 behaves similarly. I just pull the brake pedal back with my toe about an 1/8" to get the brake lights to go out. I have a rear disk brake conversion so my brake light (on the dash) acts weird because of ABS but my stopping power is very good including panic stops. That's a separate issue though. __________________ 1989 K1500 Chev. EC Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit. 2009 Hummer H3T 3.7L 5M (sold) 1997 K2500 Chev. EC 7.4L/ 4L80E (sold) 2018 Dodge Ram 2500 HD R/C

04-04-2019, 06:00 PM	#3
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,621	Re: Dash brake light stays on Here are two links to threads on this topic at this board and a link to another board I post on. I have some very good threads on the other board. You can do a search on either board of my user-name and RWAL to find many threads that should have everything you need to diagnose this problem. http://67-72chevytrucks.com/vboard/s...d.php?t=399153 http://67-72chevytrucks.com/vboard/s...d.php?t=302690 https://www.chevytalk.org/fusionbb/s...php?tid/262169 __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.

04-04-2019, 08:13 PM	#4
muley Registered User Join Date: Aug 2013 Location: Homedale, Idaho Posts: 160	Re: Dash brake light stays on Thanks ChevyTech. This is far more than I knew before. Really appreciate it. __________________ Grandpa 1953 M38A1 Jeep 1989 GMC K2500 1958 Alaskan Camper all original WORK : A necessary evil that finances what I really like to do.



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