C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Tech2 Expert Question

Thread Tools
 
Search this Thread
 
Old Jan 17, 2026 | 07:46 AM
  #1  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default Tech2 Expert Question

I had asked in general forum but still not quite sure till I ask here or find out for myself in Spring.

I bought a New FOB from GM to Replace my FOB1 I have FOB2 which is working Perfect. My FOB1 sucks so replacing.
I really don't want to go through Long Procedure as Owners Manual Spells out, or with some of instructions in Forum. FOB1 and FOB2 make use of my Memory functions in car as you know. FOB Slots 3 and 4 don't.

I want to and I'm thinking that I can use my Tech2 and delete FOB1 and Reprogram New FOB as FOB1 leaving FOB2 in place.
Could a Tech2 user let me know if possible? I would not ask if weather was warmer and would just hook up tech and see for myself but here in NE car is covered and in my Carport, no heat no bob! lol
Reply
Old Jan 17, 2026 | 08:34 AM
  #2  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,669
Likes: 4,093
From: Cape Coral, Florida
Default

You can select FOB1 as the one you want programmed with the Tech 2...the most important thing is to make sure the ignition is OFF during the procedure with the Tech 2 and at the end make sure you press the UNLOCK button on the new FOB per step 8...procedure from Service Info below...car covered in a carport ??...that sucks !!






Reply
Old Jan 17, 2026 | 09:15 AM
  #3  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default

C5 Thank you so much! Awesome instructions

You arent kidding about cold! I miss Florida big time! I was in St Lucie County
Reply
Old Jan 17, 2026 | 09:56 AM
  #4  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default

Re-reading, Place the Vehicle in Reverse! I would of never guessed to do that. WTH

Mines a Manual Tranny
Reply
Old Jan 17, 2026 | 09:58 AM
  #5  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,669
Likes: 4,093
From: Cape Coral, Florida
Default

Yes, you MUST follow the instructions explicitly !!
Reply
Old Jan 17, 2026 | 10:05 AM
  #6  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default

Originally Posted by C5 Diag
Yes, you MUST follow the instructions explicitly !!
Oh yes going too follow your instructions for sure and to the T, Thank you! But dang that really surprised me and easily could of missed, as I did 1st reading.
Have you had to do that for any other diagnostics's on C6's? Wonder how many miss that step and fail!
Reply
Old Jan 17, 2026 | 10:16 AM
  #7  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,669
Likes: 4,093
From: Cape Coral, Florida
Default

That is the only procedure I can think of with ignition off and yes you can still use your scan tool with ignition off but you have to manually enter the VIN...there are modules you will not be able to communicate with this ignition off method.
Reply
Old Jan 17, 2026 | 10:23 AM
  #8  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default

The leaving in Reverse and Engine OFF, I'm thinking is because of replacing Working FOB with New FOB. But no Clue! LOL

It seems I dont delete FOB1 from car first, I'm Just Reprogramming/Over Writing Original FOB1 with New FOB(1) to the originals location.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Jan 17, 2026 | 10:26 AM
  #9  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,669
Likes: 4,093
From: Cape Coral, Florida
Default

Originally Posted by cadbob
The leaving in Reverse and Engine OFF, I'm thinking is because of replacing Working FOB with New FOB. But no Clue! LOL

It seems I dont delete FOB1 from car first, I'm Just Reprogramming/Over Writing Original FOB1 with New FOB(1) to the originals location.

Yes
Reply
Old Mar 20, 2026 | 01:29 PM
  #10  
cadbob's Avatar
cadbob
Thread Starter
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jul 2022
Posts: 1,390
Likes: 439
From: Central, Mass
Default

Originally Posted by C5 Diag
Yes

Worked like a champ! Took all of about 1 minute, thou I have to regret first time forgot I needed Candi Module hooked up! LOL
So I'm not counting the 5 minutes scratching my head!
I noticed GM Sent me Imprinted 1 on Key FOB, which is the one I replaced so that worked out cool.
Reply

Get notified of new replies

To Tech2 Expert Question





All times are GMT -4. The time now is 12:12 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE