No remote detected?
Thread Starter
Drifting
Joined: Jul 2016
Posts: 1,481
Likes: 394
From: Virginia Beach Virginia
No remote detected?
my 2016 would not unlock with the fob. I used the small key to unlock the truck which set off the alarm. The remote did nothing then after a minute, it unlocked the doors and turned off the alarm. Inside, it wouldn’t start and said to put fob in slot, I did and it started. Seems neither of my fobs will work the doors all the time. My second fob has never been used before so it doesn’t seem to be the fob battery. I did schedule an appointment on monday. Anyone had this issue?
thanks
thanks
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
They are a receiver. They must be "on" to "Receive". They do use a really small amount of battery to be able to receive the signal and communicate with the car. They definitely use battery if you push a button but they are a receiver and need battery to receive UNLESS you put them in the slot and they use inductance to get power to communicate with the car.
To the OP, change out both FOB batteries and forget the trip to the dealer.
Elmer
To the OP, change out both FOB batteries and forget the trip to the dealer.
Elmer
Last edited by eboggs_jkvl; Nov 23, 2018 at 11:08 AM.
Team Owner
Joined: Apr 2013
Posts: 26,228
Likes: 4,355
From: Chirper Island
More precisely, the fobs spend a minute amount of energy "listening." This is why a battery in a fob that is never used wears out at about the same time an active fob does. They never "ping" the car, unless a button on the fob is pressed.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
The FOB communicates to the car:
1) When you push a button on the FOB.
2) When you are standing within 3' of the door (P of D) and then press the Door Pad to open the door. The car talks to the FOB and the FOB answers back.
3) When you are within 3' of the trunk/hatch and press the open button under the trunk lip to open the trunk/hatch. The car talks to the FOB and the FOB answers back.
4) When you are sitting in the car ready to start the engine and press "Start". The car talks to the FOB and the FOB answers back.
5) When you leave the FOB in the car after shutting the engine off and you have the triple beep warning set to sound, the car talks to the FOB and the FOB answers back.
Otherwise, your FOB does not communicate with the car and is listening for the car and using a fantastically miniscule amount of power to "look" for a signal from the car.
1) When you push a button on the FOB.
2) When you are standing within 3' of the door (P of D) and then press the Door Pad to open the door. The car talks to the FOB and the FOB answers back.
3) When you are within 3' of the trunk/hatch and press the open button under the trunk lip to open the trunk/hatch. The car talks to the FOB and the FOB answers back.
4) When you are sitting in the car ready to start the engine and press "Start". The car talks to the FOB and the FOB answers back.
5) When you leave the FOB in the car after shutting the engine off and you have the triple beep warning set to sound, the car talks to the FOB and the FOB answers back.
Otherwise, your FOB does not communicate with the car and is listening for the car and using a fantastically miniscule amount of power to "look" for a signal from the car.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
They are a receiver. They must be "on" to "Receive". They do use a really small amount of battery to be able to receive the signal and communicate with the car. They definitely use battery if you push a button but they are a receiver and need battery to receive UNLESS you put them in the slot and they use inductance to get power to communicate with the car.
To the OP, change out both FOB batteries and forget the trip to the dealer.
Elmer
To the OP, change out both FOB batteries and forget the trip to the dealer.
Elmer
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,948
Likes: 12,362
From: NE South Carolina
Changed the battery in my 2014 C7 after ~18 months as a “precaution.” After ~1 year had the same issue, was not opening the door unless I pushed the FOB button (yea I know FOB isn’t an acronym and therefore not capitalized- but I like the look and it’s my post) then would not start the car without being put in the slot. Tried the FOB that was never used and just under 3 years old. It also needed to have the open button pushed to open the door.
Checked both batteries using a battery checker I have had for years that puts a current draw on the battery depending on voltage and size. Much better than measuring OCV. Both read just barely in the green OK area. Bought new batteries locally and they read strongly in the green area. They worked fine.
Bottom Line: will change my Grand Sport FOB battery at 2 years with a fresh quality replacements.
Last edited by JerryU; Nov 23, 2018 at 11:48 AM.
Melting Slicks
Joined: Apr 2002
Posts: 2,439
Likes: 590
From: Tellico Plains Tennessee
Cheap batteries from big box stores have a history of early life failures. ie.. dying early. I've gone round and round with my Vette fobs as well as my wife's NIssan fobs. Same battery type. They might work for 6 months, maybe a year but aren't as reliable as the original battery. Oddly, they've both (Vette and Nissan) exhibited the same type of failures where the fob should work but doesn't first thing in the morning. After pressing the unlock button a few times they seem to wake up and work properly for the rest of the day, then fail again next morning. I've never read the data sheet on how fobs work so I don't know if in fact they can go to sleep but that's the way they've presented low battery in my experience. Also, for those who use remote start, the range is dramatically shortened with a low battery. After using many cheap big box batteries I bought some from a battery specialty store and they've worked for over 2 years so far. I don't waste money on Wally World batteries anymore.
Thread Starter
Drifting
Joined: Jul 2016
Posts: 1,481
Likes: 394
From: Virginia Beach Virginia
Batteries only 2 1/2 years old failing at the exact same time when one has been stored and never used even once sounds way to much like a coincidence. Hmmm. To answer the question if the OP (me) will take it to the dealers? Hell yeah. Battery still under warranty so should be free replacement. Since I have an issue with coincidences, I want the system checked. The fobs work fine after I plug them in and then remove them. The people at Rick Hendricks are pretty good.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Batteries only 2 1/2 years old failing at the exact same time when one has been stored and never used even once sounds way to much like a coincidence. Hmmm. To answer the question if the OP (me) will take it to the dealers? Hell yeah. Battery still under warranty so should be free replacement. Since I have an issue with coincidences, I want the system checked. The fobs work fine after I plug them in and then remove them. The people at Rick Hendricks are pretty good.
Dude, the batteries are "used" at pretty much the same rate in the FOBs whether or not you actually use them.
You have 2 bad FOB batteries. They are cheap and I'm NOT sure they are warrantied. If you want to go to the dealer and give it a whirl, then by all means go! Take both FOBs! You might get 2 free FOB batteries or not.
I'm done here. Either you aren't reading what we've posted or you don't understand our words. Do what you want. 2 1/2 years on the FOB batteries is great. There is nothing wrong with the car. There is no mysterious battery drain on the FOBs. The batteries are toast in the FOBs, period.
Elmer
Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
Its definitely 2 dead batteries, it will be kinda funny when the dealer bills him for the service because the batteries are a wearing item not covered by warranty.
mine also died at the same time, if you want to save the money that the dealer is going to charge you replace the fob batteries 2032.
mine also died at the same time, if you want to save the money that the dealer is going to charge you replace the fob batteries 2032.
Last edited by BlueDevilZ51; Nov 24, 2018 at 09:56 AM.
Intermediate
Joined: Aug 2016
Posts: 26
Likes: 15
From: Santa Rosa California
I have the same situation in my 2017 Z06. The doors wouldn’t unlock. The hatch would unlock by pressing the button underneath, but not with the key fob. I opened the driver’s door with the pull tab in the trunk. I inserted the key fob in the steering column slot and was able to start the car. The driver door wouldn’t open. I had to use the release latch on the floor to open the door. I replaced the batteries in both key fobs and the car still shows “ no remote key was detected “. I replaced the car battery 18 months ago. When the engine is running the digital display shows 14.7-14.8 volts for the battery.
I know this problem has many threads, and the answers are to replace the fob batteries as the solution. But that didn’t work in this case. Any other thoughts or possible solutions ? The car is under warranty, but I only want to take it to the dealership if
I have to.
I know this problem has many threads, and the answers are to replace the fob batteries as the solution. But that didn’t work in this case. Any other thoughts or possible solutions ? The car is under warranty, but I only want to take it to the dealership if
I have to.