Forum Discussion
2023 Tahoe Z71 Telematic Module out
I have a 2023 Tahoe Z71 and the Chevrolet GM service dept just told me the telematic module for the OnStar is out. They are checking to see when they can get the part but have no date. I see a ridiculous amount of complaints on here about the same thing with no resolution to the problem. It’s very disheartening. We paid a stupid amount of money for this vehicle and have been on a premium OnStar subscription plan but have had no service for 5 weeks. Now I’m being told they don’t know when the part will be in? At this point I’m thinking I don’t want to ever buy another vehicle equipped with OnStar.
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Bought my truck new April 2023. Like most new GMC Sierra they come with 2 year subscription with OnStar. My two year subscription expired two days ago 4/17/25. The same day it expired my OnStar functions all went out and my battery light came on. I didn’t notice anything wrong with the way the truck was running, I just notice all functions like the blue bottom, SOS button, GPS etc weren’t working. I was unable to call OnStar through the blue button. After, having a scan done the report showed two faults, P00FF- BCM and P0562 Low voltage. After, having the mechanic check the BCM, Battery and alternator out, everything tested to be positive with no issues. So, I decided to renew my OnStar subscription to shortly find out from OnStar that my truck needs to go to the dealer to have new OnStar module put in. It seems odd how all this happened at the same time of my subscription expired. Everything was working just fine and no check engine prior to expiration date. Anyone else having this issue?
Thanks for reaching out to us again to further elaborate on these concerns with your 2023 Chevrolet Tahoe's OnStar hardware, William. We'd be more than happy to continue assisting you towards an appropriate and satisfactory resolution to this trouble in a private conversation. This ensures that your personal information is protected as we work alongside your Chevrolet dealership to determine the best course of action to address this matter. To best connect with us moving forward, please select the envelope icon at the top right of your screen to get started. When creating a new message, please be sure to enter Advisor_Jack to get connected directly to me. Our team hopes to hear from you again very soon.
Who is William?
Coming to check your update - I just found out today that my Tahoe has this issue as well & was told it was on back order. Looks like if you're still waiting, I have a long wait. I did call the dealership back with the issue first happened & they mentioned to me the new Tahoes don't use the same system for OnStar...so, if that's the case I wonder if they're even making this part anymore.
Good point and I wonder the same as far as them still making the part. I have not had this issue resolved. I spoke to someone from my local service dept who assured me he will do everything he can to fast track and get the part in. He said it has been taking a VERY long time to come in. I told him what I've read online and asked him to please just speak the truth. Is it going to come in or isn't it.(?) He just repeated that it's been taking a VERY long time. He said he would find one. Well, it's been 3 months. I still have no part. So all of the extra features do not work. I contacted OnStar and cancelled my subscription until the part issue is resolved.
I cancelled my plan, too - it's been three months that it hasn't been working. The shop I go just told me to call them back in a month. This is ridiculous - if they are going out we have to be able to replace them b/c we know they aren't going to upgrade us to the new system that is going to be used.
There appears to be a widespread issue with the telematics module. I own a 2022 Cadillac Escalade, and my telematics module is not functioning. When I took it to Covert Cadillac in Austin, TX, the dealership informed me that I would need to pay approximately $460 just to have the module scanned to determine why it is offline—before they could even diagnose the problem or suggest next steps. Additionally, I was told that my extended warranty would not cover the module.
I agree with other customers that this issue needs to be reported to the Better Business Bureau, and legal action should be considered. It is unacceptable for GM to ignore this recurring problem, especially since Cadillac issued a recall for the same issue back in 2021. Clearly, the problem was never fully resolved.
Hello again, Mark. Our team is saddened to hear of these concerns with your 2022 Cadillac Escalade's telematic module. This is not akin to the OnStar experience that we strive to provide for our dedicated members. We saw your previous comments and kindly recommend reaching us via email for the best and continued assistance with these troubles. If you are interested in any available insight, please send us a message at socialmedia@gm.com with, "ATTN:OS Community/MarkH," in the subject line. We appreciate your understanding and hope to hear from you soon.
We understand the frustrations that part delays can cause, Cherie. Please know, our certified Chevrolet dealerships are in the best position to provide you with support regarding your OnStar hardware. As they are technically trained, they can further assist with any questions or concerns relating parts. With this, our social care team can provide you with an additional layer of communication alongside your service center. If you are interested in any available insight, kindly email us at socialmedia@gm.com. We appreciate your understanding.
2 months ordered. No part. No date for when it will be shipped.
dyWe understand this situation has been far from ideal, Cherie. Please do not hesitate to follow up with us via email or private messages if you continue to experience concerns with your dealership or services. We are here to help to the best of our abilities with any available communications regarding your OnStar hardware.