Key fob problems - Chevy Malibu Forum: Chevrolet Malibu Forums
 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 08-06-2011, 09:56 PM Thread Starter
ASE Certified Technician
 
Join Date: Nov 2010
Posts: 1,448
Key fob problem solutions

GM key fobs have two distinct problems:

1. the battery contact arm loses good contact with the circuit board
Symptoms: the fob has a short range and/or is intermittently completely non-functional
Solution: carefully add solder to the battery contact arm connection points on the circuit board


2. a button pad electrical contact has failed
Symptoms: one button (or maybe two) quit working or work poorly
Solution: replace the button pad for about $10
Here is one source: http://www.keylessfix.com

Last edited by greenman; 08-06-2011 at 10:07 PM.
greenman is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 08-07-2011, 08:08 AM
Banned
 
Join Date: May 2011
Location: Central Illinois/North Cent. Florida
Posts: 2,089
Re: Key fob problem solutions

Quote:
Originally Posted by greenman View Post
2. a button pad electrical contact has failed
Symptoms: one button (or maybe two) quit working or work poorly
Solution: replace the button pad for about $10
As was mentioned in an earlier thread:
It also can usually be fixed by cleaning with 90% (or higher) Isopropal alcohol and a Q-tip.

If the contact point on the circuit board is contaminated (dirty), a new button pad many not work very long either.

Thankfully, the electronics in the fobs seem pretty robust. Mine went through the wash once and still works fine......after drying out.
MalibuKen is offline  
post #3 of 9 (permalink) Old 08-07-2011, 10:49 AM Thread Starter
ASE Certified Technician
 
Join Date: Nov 2010
Posts: 1,448
Re: Key fob problem solutions

Quote:
Originally Posted by MalibuKen View Post
As was mentioned in an earlier thread:
It also can usually be fixed by cleaning with 90% (or higher) Isopropal alcohol and a Q-tip.

If the contact point on the circuit board is contaminated (dirty), a new button pad many not work very long either.

Thankfully, the electronics in the fobs seem pretty robust. Mine went through the wash once and still works fine......after drying out.
Cleaning in certainly worth a try. But I would use an electrical contact spray cleaner as opposed to isopropyl alcohol because even 91% IA has 9% water in it. Regular IA is around 30% water.

They may have improved the fob manufacturing process over time after having so many complaints for so long. My '10 fobs so far have been fine but both my '09 fobs needed re-soldering after just a couple months past new.
greenman is offline  
post #4 of 9 (permalink) Old 08-07-2011, 11:05 AM
CMF Senior Member
 
Join Date: Mar 2010
Location: U.S.S.A.
Posts: 261
Garage
Re: Key fob problems

Warranty item.

2010 LTZ, White diamond tricoat, sunroof, compact spare, rear 110V outlet, rear window shade, and all the other LTZ goodies. 2.4 EcoTec (My 5th car with an EcoTec)
Len McRiddle is offline  
post #5 of 9 (permalink) Old 08-07-2011, 02:45 PM
Banned
 
Join Date: May 2011
Location: Central Illinois/North Cent. Florida
Posts: 2,089
Re: Key fob problem solutions

Quote:
Originally Posted by greenman View Post
But I would use an electrical contact spray cleaner as opposed to isopropyl alcohol because even 91% IA has 9% water in it.
I would too.....if I had any at the time I needed it.

Depending on what the contaminant IS however, a small amount of water might be desirable, for things like dried soda pop residue for instance.

And if you blow the things off to dry them thoroughly, that tiny bit of water won't hurt anyting. Witness my washing machine incident; 100% water !!
MalibuKen is offline  
post #6 of 9 (permalink) Old 08-12-2011, 01:42 PM Thread Starter
ASE Certified Technician
 
Join Date: Nov 2010
Posts: 1,448
Re: Key fob problems

Quote:
Originally Posted by Len McRiddle View Post
Warranty item.
True. Covered by bumper-to-bumper.
greenman is offline  
post #7 of 9 (permalink) Old 03-25-2012, 06:43 AM
CMF Rookie Member
 
Join Date: Feb 2012
Posts: 11
Re: Key fob problem solutions

Quote:
Originally Posted by greenman View Post
GM key fobs have two distinct problems:

1. the battery contact arm loses good contact with the circuit board
Symptoms: the fob has a short range and/or is intermittently completely non-functional
Solution: carefully add solder to the battery contact arm connection points on the circuit board


2. a button pad electrical contact has failed
Symptoms: one button (or maybe two) quit working or work poorly
Solution: replace the button pad for about $10
Here is one source: http://www.keylessfix.com
Eventually, both the key fobs for my 2006 Malibu failed. The first repair was to solder broken battery contact points on the circuit board. That worked for a while, but then the fobs failed again.

I purchased the button pads from keylessfix about two years ago and installed their pads. The repair took just a minute or two. The fobs have worked perfectly since the pads were installed.
dalbc is offline  
post #8 of 9 (permalink) Old 03-25-2012, 11:45 AM Thread Starter
ASE Certified Technician
 
Join Date: Nov 2010
Posts: 1,448
Re: Key fob problems

It turns out there is a conducting material on the contacting surfaces of the button pads that is breaking down over time & eventually fails to complete the circuit on the board.
greenman is offline  
post #9 of 9 (permalink) Old 03-25-2012, 03:18 PM
Banned
 
Join Date: May 2011
Location: Central Illinois/North Cent. Florida
Posts: 2,089
Re: Key fob problems

Quote:
Originally Posted by greenman View Post
It turns out there is a conducting material on the contacting surfaces of the button pads that is breaking down over time & eventually fails to complete the circuit on the board.
Sometimes.

As has been discussed here before, other times it is just contamination of the contacts and a good cleaning will fix the problem.
MalibuKen is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Malibu Forum: Chevrolet Malibu Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Key Fob Problems ? Oldvetter Problems/Service Issues/Troubleshooting (Generations 5 & 6) 6 05-31-2014 11:04 AM
HID problems Misuraca26 Problems/Service Issues/Troubleshooting (Generation 7) 11 04-13-2011 08:12 AM
A few problems! troykillman Problems/Service Issues/Troubleshooting (Generation 7) 5 10-19-2010 12:04 PM
More Problems With The Bu Darren Problems/Service Issues/Troubleshooting (Generation 7) 18 12-16-2009 04:06 AM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome