C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Home Button Copying

Thread Tools
 
Search this Thread
 
Old Sep 26, 2020 | 02:49 PM
  #1  
Har-ray's Avatar
Har-ray
Thread Starter
Pro
 
Joined: Oct 2016
Posts: 656
Likes: 247
From: Florida
Default Home Button Copying

When you leave your car for service, can someone copy your garage door codes from the home buttons on the visor?
Reply
Old Sep 26, 2020 | 03:15 PM
  #2  
radar314's Avatar
radar314
Instructor
Conversation Starter
All Eyes On Me
Liked
Loved
 
Joined: Sep 2019
Posts: 162
Likes: 77
From: Tequesta, FL
Default

I would think that is a great question for Homelink. My guess is that you need the opener system to pair it with, that is, the actual garage door mechanism.

Last edited by radar314; Sep 26, 2020 at 03:21 PM.
Reply
Old Sep 26, 2020 | 03:17 PM
  #3  
defaria's Avatar
defaria
Safety Car
10 Year Member
 
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
Default

Or, heaven forbid, Google!
Reply
Old Sep 26, 2020 | 03:22 PM
  #4  
Maxpowers's Avatar
Maxpowers
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2015
Posts: 6,884
Likes: 2,884
From: Toronto
Default

No. Modern garage door openers go to learn mode to learn the algo.
Reply
Old Sep 26, 2020 | 03:23 PM
  #5  
Chilihead's Avatar
Chilihead
Intermediate
 
Joined: Sep 2020
Posts: 34
Likes: 5
Default

I believe any of these openers that don't have a pairing mode are vulnerable to having the codes harvested out of them with a simple learning remote.

Is the opener disabled in valet mode? That would offer at least a small layer of protection.
Reply
Old Sep 27, 2020 | 08:18 AM
  #6  
dave_2012_tt's Avatar
dave_2012_tt
Burning Brakes
 
Joined: Jul 2014
Posts: 921
Likes: 345
Default

I always thought it would be a good idea if you where a dishonest person to get a job at an auto dealer and for cars kept overnight get the keys, in the Nav choose "home" and open the garage door. Now you are inside a garage and can pack many items. Many people leave the door leading to the garage to the "mud" room unlocked.

Many car dealers do NOT lock up the customers keys.
Reply
Old Sep 27, 2020 | 08:27 AM
  #7  
Chilihead's Avatar
Chilihead
Intermediate
 
Joined: Sep 2020
Posts: 34
Likes: 5
Default

Originally Posted by dave_2012_tt
I always thought it would be a good idea if you where a dishonest person to get a job at an auto dealer and for cars kept overnight get the keys, in the Nav choose "home" and open the garage door. Now you are inside a garage and can pack many items. Many people leave the door leading to the garage to the "mud" room unlocked.

Many car dealers do NOT lock up the customers keys.
They say you shouldn't put an obvious "home" location in a car navi for that reason.
Reply
Old Sep 27, 2020 | 08:30 AM
  #8  
Radley's Avatar
Radley
Melting Slicks
Active Streak: 30 Days
Community Builder
Community Influencer
Loved
 
Joined: Oct 2017
Posts: 2,737
Likes: 377
From: Pensacola, FL
Default

I lived in McAllen, Texas for 4 years in the 90s. This occurred quite often. My neighbor has their car stolen after a visit to a dealership. As a co-worker would say quite often "the bad guys stay up at night trying to figure out a way to rip you off, because that is their job".
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Sep 27, 2020 | 08:35 AM
  #9  
ByRiver's Avatar
ByRiver
Safety Car
 
Joined: Oct 2015
Posts: 4,128
Likes: 616
From: St Louis Area IL
Default

Originally Posted by Chilihead
They say you shouldn't put an obvious "home" location in a car navi for that reason.
Never needed a NAV system to take me to my garage door. I just put in an intersection in my neighborhood for Home.
Reply
Old Sep 27, 2020 | 10:36 AM
  #10  
RonC7's Avatar
RonC7
Safety Car
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2012
Posts: 3,841
Likes: 1,856
From: St. Louis Metro East IL
Default

There are "code sniffers" out there used by pros that can clone fobs or garage door openers.

But - I would be more concerned about leaving a house key attached to the fob. Your address is on the work order.

Ron

Last edited by RonC7; Sep 27, 2020 at 10:57 AM.
Reply
Old Sep 27, 2020 | 11:25 AM
  #11  
Chilihead's Avatar
Chilihead
Intermediate
 
Joined: Sep 2020
Posts: 34
Likes: 5
Default

Originally Posted by RonC7
There are "code sniffers" out there used by pros that can clone fobs or garage door openers.

But - I would be more concerned about leaving a house key attached to the fob. Your address is on the work order.

Ron
Fobs are pretty tough to clone. They use RFID transponders which employ encryption and authentication. I would never say anything is impossible to hack, but I can say they can't simply be "sniffed". Many older IR/RF door openers are wide open and can be.

I can't imagine leaving my house key with a business. I've always used those detachable keychains.
Reply
Old Sep 27, 2020 | 11:47 AM
  #12  
ByRiver's Avatar
ByRiver
Safety Car
 
Joined: Oct 2015
Posts: 4,128
Likes: 616
From: St Louis Area IL
Default

Originally Posted by RonC7
There are "code sniffers" out there used by pros that can clone fobs or garage door openers.

But - I would be more concerned about leaving a house key attached to the fob. Your address is on the work order.

Ron
Fob and garage door openers are totally different then they were back in the day. They all use rolling code technology, so the code is changed after a one time use. Cloning a code gets you nowhere because it will have changed before you can use it. Door openers have used Security+ Rolling Codes since 1993, and in 2013 the openers were upgraded to Security+ 2.0, which supports smartphones. If you still have a 40 year old opener that still uses dip switches, then the code can be obtained. But I doubt the opener in modern cars will even work with those old systems.
Reply
Old Sep 27, 2020 | 12:39 PM
  #13  
Vette Jockey's Avatar
Vette Jockey
Roadster Madness. 😠
Supporting Lifetime Gold
15 Year Member
Liked
Community Favorite
Top Answer: 5
 
Joined: Sep 2009
Posts: 6,289
Likes: 2,357
From: Ventura Co Ca
SoCal Regional Events Coordinator
St. Jude Donor '13, '20-'21
Default

I use a simple method. I have the remote clipped to the visor.

When, i leave the car at the dealer, i take the remote and the house key with me.

Last edited by Vette Jockey; Sep 27, 2020 at 12:40 PM.
Reply
Old Sep 27, 2020 | 01:10 PM
  #14  
Chilihead's Avatar
Chilihead
Intermediate
 
Joined: Sep 2020
Posts: 34
Likes: 5
Default

Originally Posted by ByRiver
Fob and garage door openers are totally different then they were back in the day. They all use rolling code technology, so the code is changed after a one time use. Cloning a code gets you nowhere because it will have changed before you can use it. Door openers have used Security+ Rolling Codes since 1993, and in 2013 the openers were upgraded to Security+ 2.0, which supports smartphones. If you still have a 40 year old opener that still uses dip switches, then the code can be obtained. But I doubt the opener in modern cars will even work with those old systems.
Interesting. I've got a Marantec/HomeLink 315 Mhz opener circa 2000 and it appears to be unsecured and easily cloneable. Are you sure about that 1993 timeframe?

Last edited by Chilihead; Sep 27, 2020 at 01:14 PM.
Reply
Old Sep 27, 2020 | 01:35 PM
  #15  
ByRiver's Avatar
ByRiver
Safety Car
 
Joined: Oct 2015
Posts: 4,128
Likes: 616
From: St Louis Area IL
Default

Originally Posted by Chilihead
Interesting. I've got a Marantec/HomeLink 315 Mhz opener circa 2000 and it appears to be unsecured and easily cloneable. Are you sure about that 1993 timeframe?
Sorry, this is for the Liftmaster and Chamberlain line of openers, which most other opener manufacturers also used the same technology. The majority of companies were using the 390 Mhz system that had Security+. I just looked up the 315 Mhz system you have. The 315 Mhz system moved to Security+ in 2005. You can update it by buying a $30 390 Mhz module that connects to the two wires that go to the opener, and deactivating the the old frequency. That way you don't have to replace the opener to be more secure.
Reply
Old Sep 27, 2020 | 11:11 PM
  #16  
Grand Slam's Avatar
Grand Slam
Melting Slicks
20 Year Member
Active Streak: 30 Days
Top Answer: 5
 
Joined: Oct 2004
Posts: 2,083
Likes: 710
From: Sunnyvale CA
Default

One can use a local intersection programmed as 'home' in my NAV but that doesn't keep a thief from learning your home address by looking at your car registration if you keep it in the car (as required by some / many states). I've got mine on the floor of the cubby behind the display where it is hard to find.

Last edited by Grand Slam; Sep 27, 2020 at 11:18 PM.
Reply
Old Sep 27, 2020 | 11:48 PM
  #17  
ByRiver's Avatar
ByRiver
Safety Car
 
Joined: Oct 2015
Posts: 4,128
Likes: 616
From: St Louis Area IL
Default

Originally Posted by Grand Slam
One can use a local intersection programmed as 'home' in my NAV but that doesn't keep a thief from learning your home address by looking at your car registration if you keep it in the car (as required by some / many states). I've got mine on the floor of the cubby behind the display where it is hard to find.
I leave my targa roof off when I park at cruise-in most times, so I always keep my glove box where I store my registration, locked.

How would a thief get a hold of your vehicle to drive to your home?
Reply

Get notified of new replies

To Home Button Copying





All times are GMT -4. The time now is 01:45 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE