Jump to content

Reprogramming a fob

belchfire
 Share

Recommended Posts

belchfire Enthusiast

belchfire

Posted
Posted

My 2018 Silverado was totaled recently.  I'm close to buying another 2018 with lower mileage, but they only offer one key and fob. 

 

1)  Can I reprogram the second fob for my totaled truck to a new one? 

 

2)  Can I do that myself, or will I have to pay a dealer to do it?

 

3)  I'm assuming I can buy a second  key through a dealer?

 

 

newdude Senior Enthusiast

newdude

Posted
Posted (edited)

If there is only 1 key with the truck now, dealer has to program in a second.  GM changed the security on everything in 2017 to where if you only have 1 key, you can't do the old rapid learn unless there are two physical keys present.

 

Fobs.  They should be able to use an old one from your truck providing the frequency is a match.  98% of the fobs are 315mHz, there are some that use the 433 mHz fob.

 

Fobs are dealer program item as well or if you have a high end diagnostics tool from Snap On, Mac, OTC.  

 

UPDATE: Quick Learn Procedures for Programming 2017MY Keys and Key Fobs – TechLink (gm-techlink.com)

 

Ignore the part about RKE transmitters, that is only true of push button RKE.  

 

Quote

 

Programming Additional Keys

 

TIP: If only one learned key is present, SPS must be used to add additional keys. The quick learn procedure will not complete with only one learned key. Using only one key for the quick learn procedure will cause the theft security light to illuminate when attempting to start the vehicle.

 

 

Edited by newdude
  • Like 1
  • Thanks 1
belchfire Enthusiast

belchfire

Posted
  • Author
Posted

@newdude, you are a WEALTH of information; thank yo SO MUCH for your input on both of my threads.  I found a YouTube video where a guy is programming fobs for a 2019 in his driveway, so I was hoping I could use my old fob, and do it myself.

 

Are the locks still reading the keys like the old tumbler locks all along, or have the keys gone electronic as well?  I ask, because it's conceivable to me that I could even program the old key to the newer truck, but then, I could believe that the new and old keys would have to match as well.

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
57 minutes ago, belchfire said:

@newdude, you are a WEALTH of information; thank yo SO MUCH for your input on both of my threads.  I found a YouTube video where a guy is programming fobs for a 2019 in his driveway, so I was hoping I could use my old fob, and do it myself.

 

Are the locks still reading the keys like the old tumbler locks all along, or have the keys gone electronic as well?  I ask, because it's conceivable to me that I could even program the old key to the newer truck, but then, I could believe that the new and old keys would have to match as well.

 

 

Was it a 2019 NEW body style?  If it was, might have been a push button truck with keyless entry and those have a way to program without a tool, but in specific scenarios.

 

The key and fob separate deal GM used to have a way in like 07-13 to do it, but don't any more.  Was mostly on Tahoe/Suburban/Yukon.

 

The mechanical keys have been "chipped" since 2007, and still have them.  So yes, it needs the electrical handshake to start.  A door key with no chip won't start the truck, but would turn the cylinder.  

Edited by newdude
  • Like 1
belchfire Enthusiast

belchfire

Posted
  • Author
Posted

Yes, I believe it was a keyless truck, so you're probably right about the video.

 

Yeah, I knew there is a chip in the key, but I was wondering about a lack of tumblers any more.  It makes sense to me that even the mechanical portion of the key in the ignition may be all electronic now, but the door and the tailgate would still be mechanical, so I'm sure the ignition is still a tumbler cylinder. 

 

Thanks again; I really appreciate all your input!

Belch

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Jsdirt
      Gas Prices

      By Jsdirt · Posted

      Done. I'll have more productive conversations with a hickory stump. Carry on! Keep the blindfolds on TIGHT! 
    • PhilB
      Gas Prices

      By PhilB · Posted

      This again?   https://www.reuters.com/fact-check/us-capitol-attack-rioters-had-weapons-including-firearms-2025-01-16/   Think Reuters is biased?  Check their rating https://mediabiasfactcheck.com/reuters/  
    • Thanusdoss
      New car smell air freshener

      By Thanusdoss · Posted

      I found an odor eliminator spray that neutralizes unwanted smells pretty well. Using it with the car's AC running helps to distribute it evenly around the cabin.
    • Atlas
      Gas Prices

      By Atlas · Posted

      WTI futures / speculation is just that. WTI futures <> current 4-7% inflation and national average gas price over $4.00/gallon.   The spot price, at delivery, is currently $87-$95/barrel which is why gas prices remain high.   Edit: oH mY gOd mEnTaL BrEaKdoWn In tHE pOsT aBOve mInE. TrUmpErS goNnA tRumP
    • Jsdirt
      Gas Prices

      By Jsdirt · Posted

      He does, actually. In another unrelated video he mentions the president called him in the middle of the night to relay some information on a cause (religious based) that he's invested in. Glenn expressed concern that another leftist administration could wield too much power with some procedure the Pentagon was using, classifying certain religions a certain way. Being that he is LDS (Latter Day Saints), he gets hate all the time from ALL over the political spectrum, so he's invested in this. Trump called him back at 5AM to tell him he had made some changes to that classification.   So, yes, they are and have been in contact regularly since the start of the administration. Glenn, of course, always asks his permission before discussing anything on the air.   I already spent an hour or more just searching for these videos. I may have my numbers wrong - I'm not a numbers guy. It may have been a MILLION barrels, not 1.5. The point is, our President, by his actions, gives a crap about America, and US - this is completely OPPOSITE the actions of the prior administration who projected hatred for anyone who wasn't following the left's edicts in lock-step.   Remember, they called January 6th an "Insurrection", when there were ZERO weapons among the crowd, undercover FBI agents agitating the crowd, along with paid leftists acting as aggressors, egging the crowd on in an attempt to whip everyone into a frenzy. It's all been proven.  Pelosi refused Trumps request for more National Guard troops. This smells 100% like an inside job for those with critical thinking skills. Only a handful of guys in the crowd got wrapped up in that, thankfully, but EVERYONE was searched out based on cell phone data, and charges were brought against many. And 6 or so people were locked up and left in solitary confinement for YEARS with ZERO due process!! If you give the slightest crap about our Nation, REGARDLESS of your political leanings, this should frighten you to your core. This is what men suffered, bled, fought, and died against 250 years ago!   This has gone FAR BEYOND left vs. right. This is a  threat to America, and our way of life. This is PRECISELY why Trump, a BILLIONAIRE who could have chosen to take Melania and sit on some tropical island that he could afford to buy himself and RELAX, instead chose to run for office, get hate from literally every corner of the media, get ATTEMPTS on his LIFE constantly, and begin to repair some of the severe damage that's been done to this Great Nation.   I don't know why I bother wasting my precious time here. Everyone has their minds made up. They won't realize we all were correct until it's too late ... after they elect another tyrant that hates America to office (Obama), or another puppet whose administration is secretly running the show behind the scenes (Biden).

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...