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About 29,300 miles. Engine light came on. Is there a way to check? Oil change was done before I bought car by dealer at 27k miles. Is this a warning light for something like spark plugs need to be changed at 30k miles or something? I couldn’t figure out how to check for what this means in the pcm. Is there a way to get details about it in pcm or do I have to take it to a dealer to get a reading every single time?
Last edited by irvineboy; Dec 16, 2022 at 04:16 PM.
Yes, you will have to take it to the dealer every single time. Unless, of course, you purchase a scanner and read it yourself. Your OBD2 port is located under the dash above the dead pedal. A cheap scanner can go for as little as $20 or you may wish to invest in a Bluetooth scanner for $120. Others that allow maintenance resets and coding can cost hundreds of dollars, but that is beyond the scope of this post.
Sometimes, you may receive notifications such as PAS not available, high beam assist not available, ACC not available. After you acknowledge them, they don’t go away and can be accessed on the instrument panel.
Press the right rotary scroll button on the steering wheel.
This will bring up the menu as seen below.
With the “Notifications” highlighted by the red lines, press the rotary scroll button again. The gauge to the left will display your notifications.
Press the back arrow next to the rotary scroll button to return to the main menu as shown in the first picture. Scroll the red lines down one click to highlight “Inspections” and press the button. Your next inspection will display.
30 days prior to your next inspection, you will get a notification each time you start your Cayenne. For instance, “Inspection due in XX days”. I call it the nag screen. Once the inspection date arrives, you will bear the shame of a wrench icon displayed on the instrument panel until it is reset.
Press the back button again, go to main menu and scroll to select “Oil Level”. Press the button to display your oil level as depicted below.
I’m looking for the Veepeak OBDcheck BLE Bluetooth ODB II scanner that had for my bmw. Will that work? Not sure if it will read all the Porsche codes.
Any OBD2 scanner will read generic codes. Those codes will point you in the right direction. For instance, P0302 is engine misfire, cylinder 2. Could be anything causing the misfire but you’ll know where to start.
Porsche specific codes will require an expensive, specialized reader. Unless you do a lot of you own maintenance, probably not worth the expense.
@Schnave surprisingly the light went away. So when I went to notifications there were no messages. Next time the light pops up, if I go to notifications, it will say what caused the light to go on? I was told sometimes emissions can cause the light to pop up and go away. I’m not really sure what emissions causes it. Weird.
On A separate note the battery reads 13.3v and is about 2/3 to the right. Is that for the car battery? How do I know when I need to replace it? I have a 2019 so I’d think 4-5 years is when it starts needing to be replaced?
Last edited by irvineboy; Dec 16, 2022 at 07:50 PM.
A CEL will not necessarily trigger a notification. Use an OBD2 scanner each time you get a CEL. I carry a scanner in my glove box.
Your CEL could have been emissions related since you rarely operate the ICE. Your catalytic converter needs to get good and hot to burn off the deposits. Frequent short trips can cause it to clog and throw a CEL. Give it an “Italian Tuneup” once in a while. Run the engine hard and blow all the gunk out of the cat. It will do it good.
The lower bar on your instrument cluster displays your 12V Lithium starter battery voltage. Completely separate from your high voltage e-hybrid battery. 13.3 volts is a good value for when the vehicle is stopped. LFP starter batteries are supposed to last much longer than AGM batteries. Time will tell — several reports of these batteries failing early.
@Schnave what’s strange is not like I just got gas and maybe left the gas cap slightly ajar to cause the CEL. So maybe you’re right, I’m using EV and hybrid too much. You’d think a 2019 car is sophisticated enough to not have these electronic gremlins right?
Is it a particular LFP model number for the battery in case I ever need? And will the pcm tell me that it’s going bad? Or is there a general rule that when it goes below say, 7 to start lookin for a new one?
Last edited by irvineboy; Dec 16, 2022 at 08:37 PM.
Is it a particular LFP model number for the battery in case I ever need? And will the pcm tell me that it’s going bad? Or is there a general rule that when it goes below say, 7 to start lookin for a new one?
Easy choice picking a replacement battery because there is no choice. Only the OEM Porsche battery works with the Cayenne. And it costs about $2,000 plus installation. And it has to be programmed to work with your VIN. Have you ever seen a more complicated starter battery than this, below? I count 5 different positive cables, each with a fusible link, a negative cable, LIN bus cable, and a vent tube.
And if that weren’t bad enough, take a look under the cover at all the electronics for the battery management system. If this goes bad, you need a new battery.
If a standard AGM battery is installed in a vehicle originally equipped with LFP, a warning message will display and the power supply network switches to emergency operation. Quite the racket for Porsche and really bad for the owners.
Oh, did I mention that there is a shortage of these Porsche LFP batteries? Plan on several weeks to have it shipped from Germany.
It is difficult to determine the battery’s condition. It behaves differently from AGM batteries. Therefore, standard battery testers will not work. Porsche uses the PIWIS to determine battery condition. And don’t use 7 volts as an indication of a bad battery — Read on . . .
Don’t let the voltage drop below 11 volts, or so. If it drops below 10 volts, the battery management system will put the battery “to sleep” to prevent battery damage from under voltage. You’ll have to use a jumper cable or a battery booster to “wake up” the battery.
Thank you for the information. $2000 for a battery. Shakes head. I really hope this battery lasts 10 years. Has anyone with our model have to replace theirs yet. Hoping the Cayenne EV comes out before I need to change my battery.
Any OBD2 scanner will read generic codes. Those codes will point you in the right direction. For instance, P0302 is engine misfire, cylinder 2. Could be anything causing the misfire but you’ll know where to start.
Porsche specific codes will require an expensive, specialized reader. Unless you do a lot of you own maintenance, probably not worth the expense.
this advice has helped me finally make a decision re scanners. I had , from time to time, looked into the more expensive readers, but after diving into computer requirements and license updates, I would always back off. I have an Indy I trust for the complex stuff, so all I really should know if I get a misfire is whether it’s a singe cylinder, so I can switch coil pack and plug, or a bank of cylinders, which puts it beyond my intervention. Thanks, Mike
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Engine light came on
