Jump to content

Random Door Unlocking - 2009 GMC 2500

TexasFlatpicker

By TexasFlatpicker
July 24, 2017 in 2000-2014 Silverado HD & Sierra HD

Recommended Posts

TexasFlatpicker

New Member

TexasFlatpicker

Posted July 24, 2017

Posted July 24, 2017

I'm having odd behavior with my door locks. When using the remote or internal switch not all of the doors will unlock/lock. It's random with the number of doors that unlock/lock. sometimes none and sometimes 1,2,3,4. It seems to happen when it is really hot outside. Any idea what's going on?

Thanks!

1 month later...

Enthusiast

SpartanAutoworx

Posted September 3, 2017

Posted September 3, 2017

Could be a bad BCM or switch

davester

Senior Enthusiast

davester

Posted September 3, 2017

Posted September 3, 2017

Find someplace with a more advanced code reader, the bcm should be generating some codes for this problem...

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,835
Total Members

8,960
Most Online

Newest Member
ballencd
Joined 18 hours ago
Who's Online 6 Members, 0 Anonymous, 500 Guests (See full list)
- garyo
- Hoginedgewood
- magpie7777
- Texasdeere
- KARNUT
- cef2lion

Latest Articles
- Hummer Turns 25 and GMC Brought the H2’s Yellow Back
  Wednesday at 06:04 PM
- What’s New for the 2027 GMC Yukon and Yukon XL
  Monday at 06:15 PM
- Got a “Service Door Latch” Alert? Fix It in a Minute
  July 9
- GM Recalls Cadillac VISTIQ Over Power-Folding Seats
  July 8
Posts
- Correct way to service 2024 l8t allison trans?
  
  By carkhz316 · Posted 2 hours ago
  
  Yeah, its not an instruction anywhere but instead a unofficial shortcut that some, including myself, use. It does take considerable leverage against the exhaust crossover to allow enough room to clear the pans, but it doesn't strain it any more than normal driveline torqueing of the exhaust pipe and components.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 7 hours ago
  
  And there aren't any "bellows". There are solid plastic doors the actuators move, which largely seal just by themselves, and then have a strip of foam around the edge to better seal the door. The foam does deteriorate over time, but this is unlikely to be a significant cause of the problem.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 7 hours ago
  
  are the heater controls set for hot or cold air? If it's set for hot, and say, to get air from outside the cab (vs recirculated air), even w the fan off, air will get pushed through the hvac system, over the heater core and into the cab. Switching it to cold will reduce the temp to whatever it is outside. Switching to recirculate mode (which may mean switching to vents or whatever, read your owners manual), will reduce the amount of airflow through the hvac system.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By dna9656 · Posted 7 hours ago
  
  Prolly diaphragm bellows rotted out. Given the age of your truck.
- Slate Electric Truck
  
  By Grumpy Bear · Posted 8 hours ago
  
  https://reotrucks.com/the-case The WHY, answered.
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 157 members
- diesel 3.0
  
  Open Club · 281 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 213 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  Grumpy Bear
  18
2. 2
  
  Chuck FB
  16
3. 3
  
  newdude
  12
4. 4
  
  OnTheReel
  8
5. 5
  
  Atlas
  8
Show More

×

Forums
Main Site
Newsroom
Road Tests
Clubs
Gallery
Activity
- Back
- All Activity
- Search
Tools
More
- Back
- Guidelines
- Staff
- Leaderboard
- Online Users

×

Create New...