Hummer Forums - Enthusiast Forum for Hummer Owners

Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Bcm change question

Thread Tools
 
Search this Thread
 
Old Apr 19, 2026 | 09:24 PM
Share
  #1  
Me 2's Avatar
Thread Starter
|
Member
Joined: Dec 2025
Posts: 65
Default Bcm change question
So tried a used bcm to see if my brake light issues would be fixed but mileage changed and truck now won’t start. Put my bcm back in but same situation! Any advice?
 
Reply
Old Apr 20, 2026 | 09:32 AM
Share
  #2  
Me 2's Avatar
Thread Starter
|
Member
Joined: Dec 2025
Posts: 65
Default
Also I noticed with the other BCM my taillights worked but when pressing the brake the signals lights on the dash lit up also. If a programming was done would that correct this or does it sound like the other BCM is faulty also?
 
Reply
Old Apr 20, 2026 | 09:43 AM
Share
  #3  
Doc Olds's Avatar
Super Moderator
Joined: Jul 2007
Posts: 13,090
From: Boat Town USA MI
Default
Do some reading BCM Nightmare
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Help with bcm
lucamlenti
Hummer H3
3
Dec 13, 2024 10:04 AM
Bcm
upnorth
PRIVATE For Sale / Trade Classifieds
3
Sep 5, 2023 05:12 PM
BCM getting wet
Mbcreech1
Hummer H3
4
May 26, 2021 05:22 PM
H2 reprograming problems after bcm change
Vmgreen0110
Hummer H2
7
Nov 1, 2020 02:41 PM
Bcm
Steve.in.Roanoke
PRIVATE For Sale / Trade Classifieds
2
Nov 10, 2016 11:15 PM
Back to Subforum
Hummer H3
View Next Unread
Front skid plate sizes




Advanced Search

All times are GMT -5. The time now is 09:43 PM.