I'm a newbie here and I apologize for posting this in the wrong area. Thank you for your patience and letting try this again.

HELP! First post. Please help as I'm getting ready to shoot my lovely c6.

I have the dreaded no fobs problem just after driving it on saturday. Please trust i've spent hours researching the no fobs problem, and like everything with my car, my problem is different compared to everybody else it seems. My last attempt to fix the no fobs problem is to reprogram them both. but alas, my car then gives me a new problem I need to weather before doing that.

I cannot enter accessory mode now. So now I need to fix the issue where I cannot get into accessory mode. button stays green. never red light. no radio. cannot roll down window. just clicks when I hit the button. yes, I've held it down for 10 seconds, still nothing. quick push, nothing. fobs have all new batteries now TWICE. I wasted 200 on a diehard battery that ended up not being needed but kept it. NOTHING. i've spent hours researching and changing batteries and i only fall farther and farther behind in my issues with this car. it's infuriating to say the least and i'm moments from cashing it all in on this car.

i've searched all over for the many ways to fix this issue but I cannot find anybody with this problem. Any ideas? I've had so many electrical demons in the 6 months I've owned this car that i may need to be talked out of selling it for somebody else to get the high blood pressure this things causes me.

Any help is so greatly appreciated.

Thank you.

UPDATE: I have since called my local dealer and they have less help to offer me than what others here have helped on prior issues. The frustration and struggle is so high i'm moments away from dragging it out of the garage and pushing it off a cliff.

 

I should add that the car in question is a 2005 manual transmission.
30k miles.

 

Other things I've tried to get this car into accessory mode >>>>
- press and hold the fob lock and unlock buttons together for 30 sec. Nothing. Console lights eventually go away, then DIC goes away, then nothing. Though it is strange that the buttons on my radio stay lit now. What is up with that? I've never owned a car so full of demons. Why Chevy? What possessed you to engineer a car this way and make it so unreliable? This is insanity.

- hard reset the car by removing battery cables from battery then pressing the car leads together for 30 seconds. Then try again. Same. Nothing. It's a broken record at this point.

There doesn't seem to be any way to get this car to go into accessory mode so I can reprogram these fobs. I've been talking to a tech who has had me going to and fro trying different things all day long. He is trying to get the car to cycle the gauges and show the check engine light, but after countless different attempts, nothing. Same thing... Cluster lights eventually go out, then DIC goes out, then nothing. Except for yet another new issue, the radio buttons staying lit. It seems I'm just going further and further in the wrong direction and misery and frustration is heavily setting in.

I would love for somebody to yell at me and tell me I'm ignorant and I'm doing something bone headed wrong here. At this point I'm ready to cry as a tow truck to the shop is going to be $650.

 

Did you have your foot on the brake while holding down the bottom of the start button?

 

I'm assuming that you placed the FOB in the glove box emergency slot and still got nothing?
The issue that comes to mind seeing you have a 2005 manual, is the issue with the steering column lock module that will prevent the car from starting. Not sure if it prevents the system to go into Aux mode however.
Have you tried to disconnect the main battery for 10 minutes, then reconnect and try starting the car. If it starts, then it is a column lock module issue. There is a TSB on that module, and GM can get rid if that circuit for about $400.00.

Good Luck

 

"Did you have your foot on the brake while holding down the bottom of the start button?"

Thank you for the response. I tried both, without brake depressed and with brake depressed, to be sure I covered my bases. Behavior is the same no matter what I tried. It is like the ignition switch is as dead as my fobs.

"I'm assuming that you placed the FOB in the glove box emergency slot and still got nothing?
The issue that comes to mind seeing you have a 2005 manual, is the issue with the steering column lock module that will prevent the car from starting. Not sure if it prevents the system to go into Aux mode however.
Have you tried to disconnect the main battery for 10 minutes, then reconnect and try starting the car. If it starts, then it is a column lock module issue. There is a TSB on that module, and GM can get rid if that circuit for about $400.00"

Thank you for your response. Correct, The fob being in the slot makes no difference at all. Dead as a doorknob. Yes, the battery has been disconnected and charged overnight on Monday. No difference is made at all come Tuesday morning. All dead behavior persists.

I found a Corvette mechanic in Milwaukee whom I'd been chatting with throughout the day yesterday. Though I live in Green Bay, it is good to have found somebody I can trust with this car and maybe even offer me some peace of mind with it after all is said and done. There are some other issues that have been happening to the car most recently that I, and Bill (the tech), agree may be showing issues of grounding problems.

On Saturday, I had an appointment at the local Chev dealer to change a bulb in the passenger side headlamps. The bulb that contains both directional and head beam. It seems the directional part was dim as compared to the drivers side directional. The directionals, both, also click rapidly indicating an issue. I've never seen a bulb be dim before and found it odd. None the less I made the appt to change it on Saturday. Saturday morning she started right up as normal. On the way to the shop my seat stopped working. I was like, WHAT? Then during the appt, the guy says that I have after market lamps in that car and asked if I'd like to replace both of them, which I agreed. Got out to my car, fired it up, and then quickly tried to diagnose my seat problem. The seat would move around without me in it. If I was sitting in it, it wouldn't move. Not at all happy about this, but I was able to get the seat adjusted. Then I return home, check out the job done, and everything seemed Ok, outside the seat issue. I turned off the car as I had some things to do, and then I was to drive to Madison. And that is where hell officially began. "no fobs detected." WHAT??? Troubleshooted for hours. Determined it must be the battery in the car that I wasn't quite confident in anyway. Run down and grab a brand new diehard gold. Got home, and nothing. Changed absolutely nothing. No start with the glove box slot and fobs are useless. So I calm myself down, accept it, did my weekend without the vette, and would pick up things on Monday. Monday morning my new battery was DEAD. I simply thought that an accessory was left on when I pushed it into the garage on Saturday. Charged up the new battery all day Monday. While doing this the only remedy I could find was reprogramming the fobs. Fine. So I go to do this and then I find out the car won't go into accessory mode. Man, you cannot imagine the frustration I was and still am experiencing. Every time I go to troubleshoot something it is another new blocking problem. And now yesterday I see that my radio button lights stay lit up when everything is turned off. WHAT??? Now why are these staying on??? You can clearly see the pattern of functional back stepping.

Bill says he wants to talk about my headlight problem as he believes that is indicating a possible bad ground. One thing is for sure, there is something that is killing my beloved car and I'm a very sad panda right now. Unless somebody reads this and recognizes something they are familiar with, it's looking like a very expensive tow from GB to Milwaukee, and then who knows after that. I was a happy buyer of this car last fall. Put 1k miles on it, stored it, brought it out, put 100 miles on it, and now insurmountable misery and fighting regrets.

I appreciate all help from you fine people. Thank you.

 

Corvette ForumDear grpweld,

brrichter has just replied to a thread you have subscribed to entitled - c6 will not enter accessory mode - in the C6 Tech/Performance forum of CorvetteForum - Chevrolet Corvette Forum Discussion.

This thread is located at:
https://www.corvetteforum.com/forums...1&goto=newpost

Here is the message that has just been posted:
***************
"Did you have your foot on the brake while holding down the bottom of the start button?"

Thank you for the response. I tried both, without brake depressed and with brake depressed, to be sure I covered my bases. Behavior is the same no matter what I tried. It is like the ignition switch is as dead as my fobs.

"I'm assuming that you placed the FOB in the glove box emergency slot and still got nothing?
The issue that comes to mind seeing you have a 2005 manual, is the issue with the steering column lock module that will prevent the car from starting. Not sure if it prevents the system to go into Aux mode however.
Have you tried to disconnect the main battery for 10 minutes, then reconnect and try starting the car. If it starts, then it is a column lock module issue. There is a TSB on that module, and GM can get rid if that circuit for about $400.00"

Thank you for your response. Correct, The fob being in the slot makes no difference at all. Dead as a doorknob. Yes, the battery has been disconnected and charged overnight on Monday. No difference is made at all come Tuesday morning. All dead behavior persists.

I found a Corvette mechanic in Milwaukee whom I'd been chatting with throughout the day yesterday. Though I live in Green Bay, it is good to have found somebody I can trust with this car and maybe even offer me some peace of mind with it after all is said and done. There are some other issues that have been happening to the car most recently that I, and Bill (the tech), agree may be showing issues of grounding problems.

On Saturday, I had an appointment at the local Chev dealer to change a bulb in the passenger side headlamps. The bulb that contains both directional and head beam. It seems the directional part was dim as compared to the drivers side directional. The directionals, both, also click rapidly indicating an issue. I've never seen a bulb be dim before and found it odd. None the less I made the appt to change it on Saturday. Saturday morning she started right up as normal. On the way to the shop my seat stopped working. I was like, WHAT? Then during the appt, the guy says that I have after market lamps in that car and asked if I'd like to replace both of them, which I agreed. Got out to my car, fired it up, and then quickly tried to diagnose my seat problem. The seat would move around without me in it. If I was sitting in it, it wouldn't move. Not at all happy about this, but I was able to get the seat adjusted. Then I return home, check out the job done, and everything seemed Ok, outside the seat issue. I turned off the car as I had some things to do, and then I was to drive to Madison. And that is where hell officially began. "no fobs detected." WHAT??? Troubleshooted for hours. Determined it must be the battery in the car that I wasn't quite confident in anyway. Run down and grab a brand new diehard gold. Got home, and nothing. Changed absolutely nothing. No start with the glove box slot and fobs are useless. So I calm myself down, accept it, did my weekend without the vette, and would pick up things on Monday. Monday morning my new battery was DEAD. I simply thought that an accessory was left on when I pushed it into the garage on Saturday. Charged up the new battery all day Monday. While doing this the only remedy I could find was reprogramming the fobs. Fine. So I go to do this and then I find out the car won't go into accessory mode. Man, you cannot imagine the frustration I was and still am experiencing. Every time I go to troubleshoot something it is another new blocking problem. And now yesterday I see that my radio button lights stay lit up when everything is turned off. WHAT??? Now why are these staying on??? You can clearly see the pattern of functional back stepping.

Bill says he wants to talk about my headlight problem as he believes that is indicating a possible bad ground. One thing is for sure, there is something that is killing my beloved car and I'm a very sad panda right now. Unless somebody reads this and recognizes something they are familiar with, it's looking like a very expensive tow from GB to Milwaukee, and then who knows after that. I was a happy buyer of this car last fall. Put 1k miles on it, stored it, brought it out, put 100 miles on it, and now insurmountable misery and fighting regrets.

I appreciate all help from you fine people. Thank you.
***************


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In just a few days I will be one month without my car. And to put it lightly, I'm furious. It still has not started. $600 to tow to a corvette specialist. Specialist, after hours of troubleshooting, cannot get it to start. It is then towed to a Chevy dealer. Dealer jiggling the car electronics goes nowhere. Their best recommendation is that I need a new fob sensor. Problem, there are no fob sensors available for purchase for my car anywhere in the USA. Car towed back to specialist. Case with GM written up. Specialist has no room to keep my car in his shop and has to rent a storage unit to store my car. This means my car has been towed 4 times now and sits collecting dust in some unknown storage shed. GM says they will start making this part soon and specialist should have a sensor in two weeks. Specialist says he is not sure what to say if that new sensor doesn't fix the car. Specialist says if it ever gets working again that I should get rid of it immediately. Says the electronics on these cars, especially the 2005, are absolute garbage, that I will be left stranded again and it would only be a matter of time. That I would need to replace the battery every two years if I keep it because the electronics on this car are that problematic. It may work for one week, could be 1 year, could be 10 years, or it may never start again. But basically, the car is 100% unreliable even after it gets fixed, IF it gets fixed.

So basically, I need to find out more about lemon laws. I can no longer trust this car, I no longer love this car, and the hate is running pretty hard through my veins. Purchasing this car last fall is probably the worst thing I have done in my 49 years on this planet. What a miserable, disheartening situation. Good god I would pay hand over fist to change this car back to a keyed ignition.

I'm at such a loss and beyond frustrated. I actually now expect this car never to start again. I expect to get a bill for thousands of dollars for towing, diagnostics, and worthless parts and be left for dead in my garage.

What do I do with this car I still owe thousands on, that doesn't start and the best mechanics not able to repair? Is it a totaled vehicle and an insurance claim? Do I have to pray for a lemon law qualification? Do I need to get a lawyer? Is there a GM hotline for their lemon cars?

This situation will be the end of me. Never in a million years did I ever fathom this kind of experience with ANY car much less America's Legend.

 

Sorry to hear about your car but dealerships and “Corvette Specialists” sometimes aren’t the best diagnosticians and that’s what you need…call this guy below…John Thornton is the country’s foremost automotive instructor and operates a mobile diagnostic company…if he can’t fix it NO one can !!..video below so you can get the scope of his knowledge and has done instruction on push start ignition diagnostics !!

 

Thank you, C5 Diag. I super appreciate this lead that isn't too far away from where it is parked now. This may be something I pursue. I've found that the car will not be applicable to lemon laws and doubt i can make any form of insurance claim on it. Whether or not it gets fixed by this new sensor, whenever it really shows up, I'm left with some difficult decisions that I never fathomed I would have to make so close to after purchasing it. Until then, my life frozen with an ever growing hole in my bank account, anxiety, frustration, and absolutely no fun to show for any of it.

 

No problem !!...like I said if John can't fix it no one can...I'd try to offer help but my knowledge of these push start systems is limited...I may just have to buy his webinar on this topic...with it not starting it may just be a communication issue but you'll need a labscope to diagnose this !!

 

TLDR; I have a 05 Z51 Manual. They are fussy to be sure.

My guess based on your description is a bad connection somewhere.

1. Check the battery it should be at 12.6 or a bit more. If it is less than 12.5 the 05 slowly starts getting unhappy. (You might need a new battery. This is my first choice for your problem)
2. Leave the hood open for about 4 hours w/o a battery tender (it's an 05 so the underhood light should turn off after a short while ) Repeat the First step.
3. The 05 battery is backwards compared to all the other C6's (positive is under the fender) - This might be why the battery connections seem to come loose so often. Even if they feel tight clean them and retighten them. (Make damn sure they are tight but don't break something)

Then (I think here might lurk the problem if not the battery)

1. Check the ground at the starter and inspect the plastic end for heat damage.
2. Check all the grounds in the engine compartment (clean as necessary), and connections in the BCM. Also, check the BCM for moisture damage.
3. If you're at this point, then find a good shop ( not the dealer IMHO)

Just to give you an idea.

1. My car had intermittent starting problems at 12.4 volts. - fixed by a new battery.
2. My car failed to start - I did not leave the Manual 6 in reverse (my fault)
3. My car gave me an active handling message - I reach under the seat and wiggle the connection (Known problem just haven't fixed it yet)

Good luck. I love the 05 because to me it's fairly easy to diagnose and work on. Wait until the c8 is 16 years old.

 

was this ever solved. I have the same issue after I disconnected my battery to install headers. Car now won’t go into accessory, but the start button stays green and radio stays on.

 

im also having the same issue. Car as been sitting for the winter for months, new battery. All electrical works but will not go into acc or on. No DIC

 

im also having the same issue. Car as been sitting for the winter for months, new battery. All electrical works but will not go into acc or on. No DIC

 

Hey I got it started I might be a little late to hep you guys. I was having the exam same issue. I even tried unplugging the battery for 10 mins and it didn’t work. However, I unplugged the negative battery terminal only for 1-2 mins and then my fob connected and I got to start. From what I know it disabled the anti-theft in the car which my girlfriend figured out lol. Not sure if this is too late but I hope it helps