Cruze Navigation Failure: Control Unit Reset Required?

Had a similar issue with my 2018 Chevrolet Malibu last month. I've got some experience working on car electronics, but this one stumped me initially. The symptoms matched yours, navigation failure and multiple electrical codes. Turned out to be a software malfunction in the main control module. Took it to my regular workshop where they performed a complete ECU reprogramming. Cost me 240 for the software update and diagnostics, but it fixed all the glitches. To better assist you, could you share: What error codes are you getting specifically? Did this start suddenly or gradually? Have you recently had any other electrical work done? Are there any other systems acting up besides navigation? If the symptoms are identical, you're likely looking at a control module programming issue. These problems are pretty common in this generation of Chevrolets when the vehicle software gets corrupted.

After checking the error codes with my scanner, I'm getting P0601 and U0100 mainly. The issue started right after my last service at 74566 KM. No other electrical work was done recently. And yes, besides the navigation, the climate control is also acting weird, sometimes it won't respond to temperature adjustments. The software bug seems similar to what you described. I'm thinking a control unit reset and recalibration might fix it, especially since all these problems started at once. The ECU problems you mentioned with your Malibu sound exactly like what I'm experiencing. The timing with the service makes me wonder if something got knocked loose or if a system update went wrong. The radio and Bluetooth still work fine, it's just the navigation and climate systems that are affected. Do you think I should try a basic software reset first, or go straight for the full ECU reprogramming?

Looking at those error codes you mentioned, P0601 and U0100, they're definitely consistent with what I experienced. My Malibu showed the exact same codes when the control module started acting up. The climate control issues are also a telltale sign, I had the same problem where the temperature settings would out of nowhere stop responding. Given that this started right after your service, there's a good chance a software bug was introduced during routine system updates. In my case, attempting a basic software reset didn't solve the issue, it just temporarily cleared the codes before they came back within a day or two. I'd skip the basic reset and go straight for the full ECU reprogramming. The control module likely needs a complete recalibration to resolve these vehicle software issues. When they did mine, they had to perform a full system reflash to get everything working properly again. Quick tip: make sure to document all the symptoms and error codes before taking it in. The more information you can provide about when these issues started, especially the timing with your recent service, the better they can target the root cause of the software malfunction. Something to keep in mind, after the reprogramming, you might need to wait about 50-100 km for all the systems to fully relearn their parameters, particularly the climate control.

Thanks for the detailed explanation about the ECU problems. Based on what you've shared, I'll take it in for the full reprogramming rather than waste time with a basic software reset. The matching error codes and similar climate control issues really confirm we're dealing with the same type of software malfunction. I've documented everything like you suggested, the timing after the service, both error codes, and all the system problems. Definitely makes sense about the control module needing a complete recalibration rather than just a quick fix. The fact that your basic reset only temporarily cleared the codes helps confirm that. I was hoping to avoid the full reprogramming, but it sounds like that's really the only proper solution for these vehicle software issues. At least I know what to expect now with the relearning period after the recalibration. I'll schedule the service tomorrow and make sure they understand all the symptoms started after my last maintenance visit. Just wondering though, did you have to get the navigation maps reinstalled after your ECU reprogramming, or did they carry over automatically?