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Discussion Starter · #1 ·
Hi everyone,

I want to alert all 992 owners (possibly earlier models as well) to an issue I ran into recently. I received my 992 C2S in January of 2021. From then until December 27th of 2021, I put a little over 2700 miles on it. It is kept in a garage and is lovingly cared for. This winter, we are in Florida (home is Philly), and since the car arrived here in early January, I’ve put 800 miles on it. It’s great to be able to drive it in the sun and warm weather.

However, a couple of weeks ago, I went to the gym and was there for about 90 minutes. I then went to the local DIY hand wash car wash to wash and dry the car. From their I stopped at the gas station to fill up. Once the car was full, I went to start it and while the dash lit up (not the PCM screen), the car did not start. It didn’t even turn over. It was DOA. I called my dealer in Philly and they walked me through a couple of things to try and still nothing. I then called Porsche assistance and had the car towed to the local Porsche dealer here in SW Florida. The service associate who received my car called and asked why I had the car towed in because it started up with no issues when she tried. The tow guys confirmed that it was dead when they picked it up from me. She decided to keep the car and try to figure out what was going on. After a week of waiting, I received a text with a link to receive and estimate of the work needed. The estimate was for north of $1,300.00 for a replacement battery and labor. As you can imagine, I was not amused. The dealer explained that Porsche “requires” at least 6000 miles to be driven in a 12 month period in order not to void the battery warranty. I was never informed of this by my dealer in Philly, nor was I told that buying a battery maintainer would avoid this issue completely.

I made both dealers talk to each other to figure out who was going to pay for this work as I certainly was not. At the end of the day, the battery charged up completely and two of the other metrics on the battery were above levels that would indicate the need to replace the battery. My dealer in Philly is receiving the car directly when I ship it back home at the end of March and will do their own set of diagnostic tests to see if replacing the battery is warranted. In the meantime I did purchase a CTek maintainer to use while I’m here to avoid another stranding by my car.

I’m curious if anyone else has run into this issue?

I love the car and my wife owns a Macan S so we’re certainly Porsche people, but this felt greasy and cheap and not what I’d expect from Porsche. I have not called Porsche customer support directly, but plan to do so before I leave for home.

So, if you don’t put a lot of miles on your 992, be aware that this issue may arise.
 

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If you don’t put that car on a battery tender it will die. In fact the lithium batteries on the rear axle steering models will die even faster. I believe they are 2K to replace. I’ve eaten quite a few batteries on my 15 year old 997 turbo which is my garage queen. After the first four years of going through what you are dealing with I got a battery tender. Since then I’ve only replaced two batteries. Even charged a car that says idle is not good. In fact it is recommended that a car be driven 45 minutes or so three times a week. Of course their periods of time did I don’t do that but it really is best for the longevity of the car. Often times it’s not just the battery but little seals cracking leaks form as a result of a car that’s just sitting still. Most important to your question will Porsche warranty the battery is really going to come down to their new policy that you apparently seem to be aware of. I have never heard of the mileage component of the policy. I hadn’t asked either. When my battery died I usually knew I was part to blame.
 

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Hi everyone,

I want to alert all 992 owners (possibly earlier models as well) to an issue I ran into recently. I received my 992 C2S in January of 2021. From then until December 27th of 2021, I put a little over 2700 miles on it. It is kept in a garage and is lovingly cared for. This winter, we are in Florida (home is Philly), and since the car arrived here in early January, I’ve put 800 miles on it. It’s great to be able to drive it in the sun and warm weather.

However, a couple of weeks ago, I went to the gym and was there for about 90 minutes. I then went to the local DIY hand wash car wash to wash and dry the car. From their I stopped at the gas station to fill up. Once the car was full, I went to start it and while the dash lit up (not the PCM screen), the car did not start. It didn’t even turn over. It was DOA. I called my dealer in Philly and they walked me through a couple of things to try and still nothing. I then called Porsche assistance and had the car towed to the local Porsche dealer here in SW Florida. The service associate who received my car called and asked why I had the car towed in because it started up with no issues when she tried. The tow guys confirmed that it was dead when they picked it up from me. She decided to keep the car and try to figure out what was going on. After a week of waiting, I received a text with a link to receive and estimate of the work needed. The estimate was for north of $1,300.00 for a replacement battery and labor. As you can imagine, I was not amused. The dealer explained that Porsche “requires” at least 6000 miles to be driven in a 12 month period in order not to void the battery warranty. I was never informed of this by my dealer in Philly, nor was I told that buying a battery maintainer would avoid this issue completely.

I made both dealers talk to each other to figure out who was going to pay for this work as I certainly was not. At the end of the day, the battery charged up completely and two of the other metrics on the battery were above levels that would indicate the need to replace the battery. My dealer in Philly is receiving the car directly when I ship it back home at the end of March and will do their own set of diagnostic tests to see if replacing the battery is warranted. In the meantime I did purchase a CTek maintainer to use while I’m here to avoid another stranding by my car.

I’m curious if anyone else has run into this issue?

I love the car and my wife owns a Macan S so we’re certainly Porsche people, but this felt greasy and cheap and not what I’d expect from Porsche. I have not called Porsche customer support directly, but plan to do so before I leave for home.

So, if you don’t put a lot of miles on your 992, be aware that this issue may arise.
C, I always use a battery tender even if I don’t plan to drive for just a few days so never replaced a battery ever.
 

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C, I always use a battery tender even if I don’t plan to drive for just a few days so never replaced a battery ever.
I let my car sit 8 months during lockdown with no issues . My car was at the shop for two months and shortly after it went dead . I was waiting for an aftermarket part and on a 15 year old car its not easy. That was the last time . If your car has rear axle they go quicker and are more expensive .
 

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If I had a way to plug the battery tender to a power source, all my cars would be on it. My cars will sit idle for weeks sometimes months with no issues. In Jan my c2cab battery went dead. It was 5yrs old.
 

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If I had a way to plug the battery tender to a power source, all my cars would be on it. My cars will sit idle for weeks sometimes months with no issues. In Jan my c2cab battery went dead. It was 5yrs old.
The newer 992 wil have even more technology to juice up and the RAS option has an expensive battery . Its a forum debate on Rennlist where some feel its so good that its worth the cost and others resented the expense . I got it despite reading both sides of the coin . My 17 GTS did not have it but it was lot car .
 

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Hi everyone,

I want to alert all 992 owners (possibly earlier models as well) to an issue I ran into recently. I received my 992 C2S in January of 2021. From then until December 27th of 2021, I put a little over 2700 miles on it. It is kept in a garage and is lovingly cared for. This winter, we are in Florida (home is Philly), and since the car arrived here in early January, I’ve put 800 miles on it. It’s great to be able to drive it in the sun and warm weather.

However, a couple of weeks ago, I went to the gym and was there for about 90 minutes. I then went to the local DIY hand wash car wash to wash and dry the car. From their I stopped at the gas station to fill up. Once the car was full, I went to start it and while the dash lit up (not the PCM screen), the car did not start. It didn’t even turn over. It was DOA. I called my dealer in Philly and they walked me through a couple of things to try and still nothing. I then called Porsche assistance and had the car towed to the local Porsche dealer here in SW Florida. The service associate who received my car called and asked why I had the car towed in because it started up with no issues when she tried. The tow guys confirmed that it was dead when they picked it up from me. She decided to keep the car and try to figure out what was going on. After a week of waiting, I received a text with a link to receive and estimate of the work needed. The estimate was for north of $1,300.00 for a replacement battery and labor. As you can imagine, I was not amused. The dealer explained that Porsche “requires” at least 6000 miles to be driven in a 12 month period in order not to void the battery warranty. I was never informed of this by my dealer in Philly, nor was I told that buying a battery maintainer would avoid this issue completely.

I made both dealers talk to each other to figure out who was going to pay for this work as I certainly was not. At the end of the day, the battery charged up completely and two of the other metrics on the battery were above levels that would indicate the need to replace the battery. My dealer in Philly is receiving the car directly when I ship it back home at the end of March and will do their own set of diagnostic tests to see if replacing the battery is warranted. In the meantime I did purchase a CTek maintainer to use while I’m here to avoid another stranding by my car.

I’m curious if anyone else has run into this issue?

I love the car and my wife owns a Macan S so we’re certainly Porsche people, but this felt greasy and cheap and not what I’d expect from Porsche. I have not called Porsche customer support directly, but plan to do so before I leave for home.

So, if you don’t put a lot of miles on your 992, be aware that this issue may arise.
 

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Sorry for your battery problems. My sales person @ Conshohocken Porsche was emphatic when delivering all my 911s over the years…if the car sits for more than a week, a battery tender is an absolute must. The car has serious electronics that pull juice all the time. I purchased a battery tender (PORSCHE) with my first and still use it 3 cars later and never had a battery problem.
suggestion: have serious talk with your sales person as to why you were not informed.
 

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Discussion Starter · #11 ·
The newer 992 wil have even more technology to juice up and the RAS option has an expensive battery . Its a forum debate on Rennlist where some feel its so good that its worth the cost and others resented the expense . I got it despite reading both sides of the coin . My 17 GTS did not have it but it was lot car .
Yeah I opted not to get RAS. I don’t like a lot of artificial assistance.
 

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Hi everyone,

I want to alert all 992 owners (possibly earlier models as well) to an issue I ran into recently. I received my 992 C2S in January of 2021. From then until December 27th of 2021, I put a little over 2700 miles on it. It is kept in a garage and is lovingly cared for. This winter, we are in Florida (home is Philly), and since the car arrived here in early January, I’ve put 800 miles on it. It’s great to be able to drive it in the sun and warm weather.

However, a couple of weeks ago, I went to the gym and was there for about 90 minutes. I then went to the local DIY hand wash car wash to wash and dry the car. From their I stopped at the gas station to fill up. Once the car was full, I went to start it and while the dash lit up (not the PCM screen), the car did not start. It didn’t even turn over. It was DOA. I called my dealer in Philly and they walked me through a couple of things to try and still nothing. I then called Porsche assistance and had the car towed to the local Porsche dealer here in SW Florida. The service associate who received my car called and asked why I had the car towed in because it started up with no issues when she tried. The tow guys confirmed that it was dead when they picked it up from me. She decided to keep the car and try to figure out what was going on. After a week of waiting, I received a text with a link to receive and estimate of the work needed. The estimate was for north of $1,300.00 for a replacement battery and labor. As you can imagine, I was not amused. The dealer explained that Porsche “requires” at least 6000 miles to be driven in a 12 month period in order not to void the battery warranty. I was never informed of this by my dealer in Philly, nor was I told that buying a battery maintainer would avoid this issue completely.

I made both dealers talk to each other to figure out who was going to pay for this work as I certainly was not. At the end of the day, the battery charged up completely and two of the other metrics on the battery were above levels that would indicate the need to replace the battery. My dealer in Philly is receiving the car directly when I ship it back home at the end of March and will do their own set of diagnostic tests to see if replacing the battery is warranted. In the meantime I did purchase a CTek maintainer to use while I’m here to avoid another stranding by my car.

I’m curious if anyone else has run into this issue?

I love the car and my wife owns a Macan S so we’re certainly Porsche people, but this felt greasy and cheap and not what I’d expect from Porsche. I have not called Porsche customer support directly, but plan to do so before I leave for home.

So, if you don’t put a lot of miles on your 992, be aware that this issue may arise.
 

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Thank you for sharing. While I was aware that it is advisable to connect to a battery tenderizer or maintainer, I was not aware of the 6,000 mile / 12 month rule to void the battery warranty. I found that charging via the 12 volt adapter in the passenger footwell can be challenging to keep the adapter powered beyond 30 minutes. There are a series of steps to take in order to keep the 12 volt adapter powered on. Be sure to plug car into charger (CTEK is what I use), then power, within 30 minutes of shutting car off. Lock car. If your car has been off longer than 30 minutes, simply start it to recycle and start the 30 minute timer again. It seems that not locking the car, the 12 volt adapter shuts power after 30 minutes.
 

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Hi everyone,

I want to alert all 992 owners (possibly earlier models as well) to an issue I ran into recently. I received my 992 C2S in January of 2021. From then until December 27th of 2021, I put a little over 2700 miles on it. It is kept in a garage and is lovingly cared for. This winter, we are in Florida (home is Philly), and since the car arrived here in early January, I’ve put 800 miles on it. It’s great to be able to drive it in the sun and warm weather.

However, a couple of weeks ago, I went to the gym and was there for about 90 minutes. I then went to the local DIY hand wash car wash to wash and dry the car. From their I stopped at the gas station to fill up. Once the car was full, I went to start it and while the dash lit up (not the PCM screen), the car did not start. It didn’t even turn over. It was DOA. I called my dealer in Philly and they walked me through a couple of things to try and still nothing. I then called Porsche assistance and had the car towed to the local Porsche dealer here in SW Florida. The service associate who received my car called and asked why I had the car towed in because it started up with no issues when she tried. The tow guys confirmed that it was dead when they picked it up from me. She decided to keep the car and try to figure out what was going on. After a week of waiting, I received a text with a link to receive and estimate of the work needed. The estimate was for north of $1,300.00 for a replacement battery and labor. As you can imagine, I was not amused. The dealer explained that Porsche “requires” at least 6000 miles to be driven in a 12 month period in order not to void the battery warranty. I was never informed of this by my dealer in Philly, nor was I told that buying a battery maintainer would avoid this issue completely.

I made both dealers talk to each other to figure out who was going to pay for this work as I certainly was not. At the end of the day, the battery charged up completely and two of the other metrics on the battery were above levels that would indicate the need to replace the battery. My dealer in Philly is receiving the car directly when I ship it back home at the end of March and will do their own set of diagnostic tests to see if replacing the battery is warranted. In the meantime I did purchase a CTek maintainer to use while I’m here to avoid another stranding by my car.

I’m curious if anyone else has run into this issue?

I love the car and my wife owns a Macan S so we’re certainly Porsche people, but this felt greasy and cheap and not what I’d expect from Porsche. I have not called Porsche customer support directly, but plan to do so before I leave for home.

So, if you don’t put a lot of miles on your 992, be aware that this issue may arise.
After reading your post, I went down to my garage to start my 992 C2S 2021 (3/20/21). Well, the battery (lithium) was dead. Had to use the emergency key and power the locking system from another battery to access the frunk. Connected my Ctek trickle charger but no signs of life. Waiting to hear from my dealer.
Dan
 

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I bought the Porsche battery tender with the clamps (with the 992 the 12V socket shuts down 30 min after car is off) and I can't seem to get it to work. It charges to max then the lights on the tender start to blink. The trouble shooting info doesn't provide guidance for this issue. Can anyone help?
 

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Thank you for sharing. While I was aware that it is advisable to connect to a battery tenderizer or maintainer, I was not aware of the 6,000 mile / 12 month rule to void the battery warranty. I found that charging via the 12 volt adapter in the passenger footwell can be challenging to keep the adapter powered beyond 30 minutes. There are a series of steps to take in order to keep the 12 volt adapter powered on. Be sure to plug car into charger (CTEK is what I use), then power, within 30 minutes of shutting car off. Lock car. If your car has been off longer than 30 minutes, simply start it to recycle and start the 30 minute timer again. It seems that not locking the car, the 12 volt adapter shuts power after 30 minutes.
Thanks for sharing guys, only just received my new C2 a few weeks ago and interestingly was given a Porsche charger by the dealer. I thought this was to soften the blow of a $4000AUD price hike after ordering March 2021 and then being told i would be delivered a MY22 so had to pay more (still below MRSP so I shouldn’t complain based on what’s happening now). Love the car and will put the charger on every week or so. It’s not my daily driver as i have a 2020 Land Rover defender but that needs a charger every month as well. Seems these new cars have a lot going on after shut down which is not great for the battery
 

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Thanks for sharing guys, only just received my new C2 a few weeks ago and interestingly was given a Porsche charger by the dealer. I thought this was to soften the blow of a $4000AUD price hike after ordering March 2021 and then being told i would be delivered a MY22 so had to pay more (still below MRSP so I shouldn’t complain based on what’s happening now). Love the car and will put the charger on every week or so. It’s not my daily driver as i have a 2020 Land Rover defender but that needs a charger every month as well. Seems these new cars have a lot going on after shut down which is not great for the battery
Better safe than sorry, use my tender all the time even if I don’t drive it for a few days.
 

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C, I always use a battery tender even if I don’t plan to drive for just a few days so never replaced a battery ever.
@BobbyG do you use a lithium ion battery charger. Today I unplugged my 997 turbo took it out and put a 992 in the garage. Without thinking I just hooked the 992 up to the charger. As I walked away it dawned on me that I better look this up. The more I read the more confused I got. I am not a do it yourself or kind of guy. I hate this stuff. So I immediately unplugged it. It was hooked up for about 30 minutes. I tested the car by starting it and everything seemed OK. I’m going to ask them tomorrow and buy the proper charger for the car but that doesn’t answer my question today and I’m hoping you might know. I think your car has rear axle steering. If it does then you have the lithium battery too.
 

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@BobbyG do you use a lithium ion battery charger. Today I unplugged my 997 turbo took it out and put a 992 in the garage. Without thinking I just hooked the 992 up to the charger. As I walked away it dawned on me that I better look this up. The more I read the more confused I got. I am not a do it yourself or kind of guy. I hate this stuff. So I immediately unplugged it. It was hooked up for about 30 minutes. I tested the car by starting it and everything seemed OK. I’m going to ask them tomorrow and buy the proper charger for the car but that doesn’t answer my question today and I’m hoping you might know. I think your car has rear axle steering. If it does then you have the lithium battery too.
Hey Larry, good to hear from you. I don’t have the rear axle steering so I don’t think I do. I have been using my previous Porsche charger from my Boxster. I’ll take a pic and post it.
 
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