LED 3rd brake light - Chevy HHR Network


Mods - Exterior Discussion related to the looks of the exterior of the HHR.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-16-2018, 11:16 AM   #1  
Member
Thread Starter
 
Join Date: 06-26-2017
Location: Los Angeles
Posts: 38
LED 3rd brake light

Hi guys,
I'm in the process of replacing all bulbs with LEDs.

Disclaimer for haters: I like LEDs and it's my car. Thank you!

Quite a few people mentioned that LED bulbs in the 3rd brake light will break the cruise control as it pulls the signal from that light. I replaced all 4 bulbs with LEDs and the CC works just fine. Did somebody actually experience problems with it after installing LEDs without ballast or all posts I read were only hypotheticals meaning the cruise control SHOULD have problems but nobody actually tested it.
Thanks!
treff-7 is offline   Reply With Quote
Old 01-16-2018, 12:29 PM   #2  
Administrator
 
Oldblue's Avatar
 
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 16,890
I believe most of the people who tried LED’s were in the dark ages, these bulbs have evolved and many of the newer generations of LED technologies work just fine!
Oldblue is offline   Reply With Quote
Old 01-16-2018, 02:28 PM   #3  
Technical Moderator
 
donbrew's Avatar
 
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 14,668
Built-in resistors work. If you were to read the complete threads on the subject; usually "improperly installed" is in the conversation.

The BCM checks for a certain resistance on the third brake light circuit to enable the CC. The third brake light is on a different circuit from the regular brake lights. LEDS, by their nature have basically no resistance when lit.
donbrew is offline   Reply With Quote
Old 01-16-2018, 02:35 PM   #4  
Administrator
 
Oldblue's Avatar
 
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 16,890
I had a burnt out 3rd brake light 921 incandescent bulb, the cruise did not work, replaced all 4 with CANBUS 921 error cancelling LED bulbs , they work fine.
Great for waking up those drivers behind me, concentrating on their phones and not their driving!

Last edited by Oldblue; 01-16-2018 at 03:59 PM.
Oldblue is offline   Reply With Quote
Old 01-16-2018, 02:35 PM   #5  
Member
Thread Starter
 
Join Date: 06-26-2017
Location: Los Angeles
Posts: 38
I know how they work but I don't think mine has built in resistors. It's too wimpy for that but I could test.
treff-7 is offline   Reply With Quote
Old 01-16-2018, 02:41 PM   #6  
Member
Thread Starter
 
Join Date: 06-26-2017
Location: Los Angeles
Posts: 38
Just tested them real quick.
Filament bulb: 1400 mA @12V
LED bulb: 320 mA @12V

So no, it does not have a built in resistor.
treff-7 is offline   Reply With Quote
Old 01-16-2018, 04:02 PM   #7  
Administrator
 
Oldblue's Avatar
 
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 16,890
Mine are these
KaTur 4pcs High Power 800 Lumens Super Bright T15 W16W 921 915 LED Canbus Error Free 15SMD 2835 Backup Reverse Tail Brake Lights Parking LED Bulbs DC 12V Red



I ordered red LED’s
Oldblue is offline   Reply With Quote
Old 01-16-2018, 04:41 PM   #8  
Member
Thread Starter
 
Join Date: 06-26-2017
Location: Los Angeles
Posts: 38
Ha! Mines are virtually identical to yours. The components are a bit beefier and does not have any writing on it but other than that it looks the same. It certainly wasn't advertised to be canbus error free.
treff-7 is offline   Reply With Quote
Old 01-16-2018, 07:16 PM   #9  
Senior Member
 
Join Date: 12-14-2007
Location: Toronto ON Canada
Posts: 2,931
I briefly had LEDs in mine back in 2010, I didnt have a problem with cruise control, but they were just not bright enough and only projected straight out, not into the reflector built into the light housing.
The technology has improved greatly, I would do LEDs again but nothing else has burned out in years.
prod is offline   Reply With Quote
Old 01-17-2018, 06:38 PM   #10  
Member
Thread Starter
 
Join Date: 06-26-2017
Location: Los Angeles
Posts: 38
The ones Oldblue posted are great! You can't tell that they are LEDs. They illuminate the light just like a filament bulb does.
treff-7 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Brake Lights: Only 3rd Brake Light Lighting Up BirdSong Brakes | Suspension | Shocks | Struts 6 04-30-2016 11:09 AM
How to convert to a LED 3rd brake light. bpb355 "How To" Tutorial Library 10 08-28-2015 10:55 PM
Convert 3rd Brake Light Turn Signal/Stop Light NxlKing2304 "How To" Tutorial Library 9 04-10-2015 12:23 PM
Looking for the LED 3rd brake light thread??? xzombiex66 The Lounge 8 01-02-2009 12:08 PM
LED conversion 3rd brake light Dirtsurfer Appearance/Modifications Discussions 5 05-04-2008 09:34 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 08:19 PM.


Copyright © 2005 - 2017 Internet Brands, Inc. All rights reserved.