Dome light dims when depressing brake pedal - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jeanius · 10-26-2009, 12:19 PM

If my dome light is on and I depress the brake it dims pretty significantly.

I have never had a car do this, esp a brand new one

Anyone elses car do this?

And the car was running, not just in the acc position

HeavyD · 10-26-2009, 01:06 PM

Someone else posted a couple months ago with the same phenomena with dome light dimming with the turn light. Unless your local dealer has seen this before, or there is GM bulletin about it, I really wouldn't worry about. Because what will happen is, the mechanic will have to tear your car apart to find the weak connection. Pressing the brake and needing the dome light on at the same time is kind of a rare combination of events. If you can't live with it, then take it in. A lot of these panels can only be removed and reinstalled a few times before the retainer clips start to break off, or weaken, or get bent. Plus, they never seem to go back together again the same way. I would rather not have my car taken apart unless it was absolutely necessary. But it is your car...

camaro5 · 10-28-2009, 01:40 AM

The technician should use a factory shop manual schematic, and identify the common ground point.

There is something like a ring terminal with paint under it.

Hey GM! Did you fix this one yet?

OBSSEST · 10-31-2009, 07:03 PM

Total shot in the dark here, but...

I'd be concerned that there was a problem with the brake system causing too much power consumption, thereby causing the light to dim because of the load. I have no expertise to base this on, but, to me, dimming lights means that something else is sucking power.

Is this impossible?

RickyTheStorm · 11-08-2009, 09:48 PM

My dome lights dim with brakes or turn signal - I think it is just power draw maybe? My Colorado does the same thing - I wouldn't be too worried about it unless it is almost making the lights go out.

LT1Jeep · 11-26-2009, 12:26 AM

at idle, esp these camaros cause they seem to idle low,.. an alternator hardly puts out enough amps to run the car let alone supply alot of current for big draw items. and todays ABS systems use very fast and high pressure pumps and electronics so im thinkinh that as soon as you hit hte brake peddel, the additional draw while sitting at idle is causing the dim. .02

PQ · 06-05-2011, 09:31 PM

PQ · 06-05-2011, 09:57 PM

I bumped this thread for a reason. So git your butts out to your cars and idle them and push the brake to see if the dome light dims.

PQ · 06-05-2011, 10:44 PM

2SSRS@Gen5diy · 06-05-2011, 10:48 PM

What do you want to know?

riderguy999 · 06-05-2011, 10:51 PM

Check your grounds

PQ · 06-05-2011, 10:55 PM

Quote:

Originally Posted by 2SSRS

What do you want to know?

If your dome light dim when you step on the brake pedal when idling.

Quote:

Originally Posted by riderguy999

Check your grounds

All of them?

2SSRS@Gen5diy · 06-05-2011, 11:00 PM

Quote:

Originally Posted by PQ

If your dome light dim when you step on the brake pedal when idling.

Yes some but i have LED light in the dome so there not affected as bad as a incandescent light bulb, PQ you do realize that you have 4 tail lights back there that suck a lot of amp's from the battery ones you step on the brake pedal.

I don't think its that on your car.

PQ · 06-05-2011, 11:14 PM

Quote:

Originally Posted by 2SSRS

Yes some but i have LED light in the dome so there not affected as bad as a incandescent light bulb, PQ you do realize that you have 4 tail lights back there that suck a lot of amp's from the battery ones you step on the brake pedal.

I don't think its that on your car.

Lights dim the same amount when the engine surges. Just wondering if it's related. Tails too.

Ok, caryy on. As long as it's normal I'm good.

10-26-2009, 12:19 PM	#1
Jeanius Drives: Blk/Blk 2018 Sierra SLT Join Date: Dec 2006 Location: Golden State Posts: 2,925	Dome light dims when depressing brake pedal If my dome light is on and I depress the brake it dims pretty significantly. I have never had a car do this, esp a brand new one Anyone elses car do this? And the car was running, not just in the acc position

10-28-2009, 01:40 AM	#3
camaro5 Drives: X-15 Velocipede Join Date: Mar 2008 Location: SW Florida Posts: 4,637	The technician should use a factory shop manual schematic, and identify the common ground point. There is something like a ring terminal with paint under it. Hey GM! Did you fix this one yet? __________________ Go from the presence of a foolish man, when thou perceivest not in him the lips of knowledge General Motors ASEP, A.S. Automotive Technology, Telecommunications Specialist, CISCO Network Engineer STANDARD DISCLAIMER camaro5 is furnishing this information "as is". camaro5 does not provide any warranty of the information whatsoever, whether express, implied, or statutory, including, but not limited to, any warranty of merchantability or fitness for a particular purpose or any warranty that the contents of the information will be error-free.

11-08-2009, 09:48 PM	#5
RickyTheStorm Drives: '10 Camaro 2SS,04 Colorado,06 ZX6R Join Date: May 2008 Location: Chambersburg, PA Posts: 524 View My Garage	My dome lights dim with brakes or turn signal - I think it is just power draw maybe? My Colorado does the same thing - I wouldn't be too worried about it unless it is almost making the lights go out. __________________ Vararam CAI, ARH Headers, Flowmaster Exhaust, Nitto NT555Rs, Custom CAM and Tune - 11.981 @ 116.27 IOM - 2SS/RS - Auto - IAP - Sunroof - Ordered 10/13 (#7 at dealer) 3000(accepted to production ): 4/19/09 3300 (scheduled for prod ): 5/11/09 3400 (broadcast ): 5/16/09 3800 (produced ): 5/22/09 4150 (invoiced ): 6/01/09 4200 (shipped ): 6/01/09 5000 (at dealer ): 6/12/09 6000 (delivery to me ): 6/12/09

11-26-2009, 12:26 AM	#6
LT1Jeep Ecstatic Camaro SS Owner Drives: Jeep(s) [1in pieces] and 2010 SS/RS Join Date: Oct 2008 Location: Westchester NY Posts: 319 View My Garage	at idle, esp these camaros cause they seem to idle low,.. an alternator hardly puts out enough amps to run the car let alone supply alot of current for big draw items. and todays ABS systems use very fast and high pressure pumps and electronics so im thinkinh that as soon as you hit hte brake peddel, the additional draw while sitting at idle is causing the dim. .02 __________________

06-05-2011, 09:31 PM	#7
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,716 View My Garage	__________________

10-26-2009, 01:06 PM	#2
HeavyD Drives: 1SSRS RY L99 Join Date: Aug 2009 Location: Ontario Posts: 1,329	Someone else posted a couple months ago with the same phenomena with dome light dimming with the turn light. Unless your local dealer has seen this before, or there is GM bulletin about it, I really wouldn't worry about. Because what will happen is, the mechanic will have to tear your car apart to find the weak connection. Pressing the brake and needing the dome light on at the same time is kind of a rare combination of events. If you can't live with it, then take it in. A lot of these panels can only be removed and reinstalled a few times before the retainer clips start to break off, or weaken, or get bent. Plus, they never seem to go back together again the same way. I would rather not have my car taken apart unless it was absolutely necessary. But it is your car...

10-31-2009, 07:03 PM	#4
OBSSEST Drives: 2010 Camaro 2SS RS, Black Join Date: Sep 2009 Location: Sacramento Posts: 413	Total shot in the dark here, but... I'd be concerned that there was a problem with the brake system causing too much power consumption, thereby causing the light to dim because of the load. I have no expertise to base this on, but, to me, dimming lights means that something else is sucking power. Is this impossible?

06-05-2011, 09:57 PM	#8
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,716 View My Garage	I bumped this thread for a reason. So git your butts out to your cars and idle them and push the brake to see if the dome light dims. __________________

06-05-2011, 10:44 PM	#9
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,716 View My Garage	__________________

06-05-2011, 10:48 PM	#10
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	What do you want to know?

06-05-2011, 10:51 PM	#11
riderguy999 can't wait Drives: 2lt RS Join Date: Dec 2009 Location: Edmonton Posts: 67	Check your grounds

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