Cadillac EXT The functionality of a pickup truck combined with the space of an SUV and the Cadillac luxury

08 EXT smart key wont open doors new battery in car and smart key

  #1  
Old 03-03-2014, 02:50 PM
Junior Member
Thread Starter
Join Date: Mar 2014
Posts: 4
Default 08 EXT smart key wont open doors new battery in car and smart key

Ive got an 08 ext that every once in a while the smart key wont open doors. Ill skip to the chase. If I open the hood and disconnect and the reconnect the battery every thing works fine, and yes its a new battery, and yes the connections to the battery are clean and tight. It seems like a relay is stuck closed and when the battery is disconnected and reconnected the jolt from the reconnection opens a relay and all is good. This seems to happen once a month. I have noticed that leaving the heater on when I tern the car off has been one symptom that I have notice when the problem reoccurs. however don't know if its linked. if I turn the car on no power to anything at first. If I cycle the key on and off and on and off some of the lights on the dash will start to come on but never will allow the car to start. until the battery is disconnected and reconnected. Ill save the embarrassing commits about the GM junk. I will say I miss my stolen 03 ford f150 Harley Davidson. HELP.
 
  #2  
Old 03-03-2014, 08:59 PM
slowroll's Avatar
Tech Certified Members
Join Date: Oct 2007
Location: in the mitten
Posts: 3,160
Default

there should be code(s) stored. you will need to go to GM dealer to find out what they are. You could try auto parts store free scan but they only scan pcm. code could be in different module
 
  #3  
Old 03-04-2014, 12:15 PM
Junior Member
Thread Starter
Join Date: Mar 2014
Posts: 4
Default

Thanks slowroll. I will try this. When it dose it, I never have the time to allow the car to be towed to the dealer. I've been trying to gather information so I can try to explain it to a tech with as much info as I can. intermittent problems are the worse. hard to fix something that isn't broken when you take the car in. Again thanks for your time.
 
  #4  
Old 03-05-2014, 07:30 AM
Join Date: Jun 2010
Posts: 210
Default

Originally Posted by shackallic View Post
Thanks slowroll. I will try this. When it dose it, I never have the time to allow the car to be towed to the dealer. I've been trying to gather information so I can try to explain it to a tech with as much info as I can. intermittent problems are the worse. hard to fix something that isn't broken when you take the car in. Again thanks for your time.
Hi shackallic,

Looks like you got some good feedback from slowroll already. Let us know how things go, and if you need additional assistance donít hesitate to reach out to us.

Austin J.
Cadillac Customer Care
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
japanhulk
Cadillac STS
5
01-20-2019 12:49 PM
MariusRomania
Cadillac CTS
0
07-13-2014 06:23 AM
jdbrtf
General Tech
3
12-15-2008 06:45 PM
umoms
Cadillac Escalade
0
03-03-2008 02:04 PM


Thread Tools
Search this Thread
Quick Reply: 08 EXT smart key wont open doors new battery in car and smart key


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.