Car Chat General discussion about Lexus, other auto manufacturers and automotive news.

keyless entry

Thread Tools
 
Search this Thread
 
Old 09-24-14, 03:05 PM
  #1  
bishop10
Driver School Candidate
Thread Starter
 
bishop10's Avatar
 
Join Date: Sep 2014
Location: Fl
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default keyless entry

My keyless entry has stop working what can I do to get it back working without going back to the dealer
bishop10 is offline  
Old 09-24-14, 03:19 PM
  #2  
mmarshall
Lexus Fanatic
 
mmarshall's Avatar
 
Join Date: Oct 2003
Location: Virginia/D.C. suburbs
Posts: 90,585
Received 83 Likes on 82 Posts
Default

Welcome to CL as a new poster.

First thing to to is try replacing the battery...if it replaceable. That's the usual cause of a fob not working....a dead battery. Key fobs are usually pretty good at resisting water-damage, say, if you forget to take them out of your pocket before doing the laundry....but water can, and sometimes does, get through tiny cracks in the casing to damage the components.

We also have a a maintenance forum for questions like this.

https://www.clublexus.com/forums/maintenance-11/
mmarshall is offline  
Old 09-25-14, 05:56 AM
  #3  
Sulu
Lexus Champion
 
Sulu's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 3,309
Likes: 0
Received 30 Likes on 23 Posts
Default

Originally Posted by mmarshall
Welcome to CL as a new poster.

First thing to to is try replacing the battery...if it replaceable. That's the usual cause of a fob not working....a dead battery. Key fobs are usually pretty good at resisting water-damage, say, if you forget to take them out of your pocket before doing the laundry....but water can, and sometimes does, get through tiny cracks in the casing to damage the components.

We also have a a maintenance forum for questions like this.

https://www.clublexus.com/forums/maintenance-11/

It may not be as simple as changing the battery, however. After changing the battery, the key fob may have to be re-programmed to re-sync it to the car; the new fobs use rolling codes that change every time you use it to minimize the risk of theft.

Re-programming will likely mean a trip to the dealer.

This happened with my parents' car a few years ago. After finding out that there was the expense and trouble of having to have it re-programmed at the dealer, they just used the other key fob, which had been seldom used to that point.
Sulu is offline  
Old 09-25-14, 04:31 PM
  #4  
Infra
Lexus Test Driver
iTrader: (1)
 
Infra's Avatar
 
Join Date: Jun 2006
Location: TX
Posts: 1,091
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Sulu
It may not be as simple as changing the battery, however. After changing the battery, the key fob may have to be re-programmed to re-sync it to the car; the new fobs use rolling codes that change every time you use it to minimize the risk of theft.

Re-programming will likely mean a trip to the dealer.

This happened with my parents' car a few years ago. After finding out that there was the expense and trouble of having to have it re-programmed at the dealer, they just used the other key fob, which had been seldom used to that point.
This is not at all how rolling codes work. A battery change, by itself, should never cause this.
Infra is offline  
Old 09-25-14, 11:02 PM
  #5  
rxonmymind
Lexus Test Driver
 
rxonmymind's Avatar
 
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 1,252
Received 2 Likes on 2 Posts
Default

In my epic searches as of late I ran across a thread title on how to program one or something like that. It required opening & closing doors, brakes & gas pedals being pressed etc. It was a LOT to get it programmed.
rxonmymind is offline  
Old 09-26-14, 07:27 AM
  #6  
Sulu
Lexus Champion
 
Sulu's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 3,309
Likes: 0
Received 30 Likes on 23 Posts
Default

Originally Posted by Infra
This is not at all how rolling codes work. A battery change, by itself, should never cause this.

If I was incorrect, I stand corrected.
Sulu is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dougm213
GS - 4th Gen (2013-2020)
18
02-27-17 07:35 AM
crmjr1
RX - 3rd Gen (2010-2015)
15
02-25-13 05:30 AM
Nicecar
IS - 2nd Gen (2006-2013)
16
01-28-12 03:06 PM
matador250
IS - 2nd Gen (2006-2013)
9
02-27-11 07:51 PM
Todd_A
Lexus Audio, Video, Security & Electronics
6
06-20-05 05:56 AM



Quick Reply: keyless entry



All times are GMT -7. The time now is 09:35 AM.