It seems the last few times I have driven the Waze map is screwed up. Either it freezes or the arrow is off the road I am driving on. I rebooted my iPhone and that doesn't fix it. I wasn't sure of how to reboot the vehicle so IK pulled over and shut the car off, locked and unlocked it then restarted and it was working again.
Seems to be happening more and more lately. Anyone having this same issue? And suggestions......

 

To soft reset MBUX, hold ⭐ STAR and TEL buttons together until the screen goes blank.

Also try uninstalling waze, restart your phone, and then reinstall it.

If that doesn't fix it, then it's a Waze or a Carplay issue.

 

I just returned from a 500+ mile round trip last weekend and used Waze the entire time without any issues. Sorry I can’t help but wanted to let you know that it has not been any issue for me.

 

Are you on Android? Apple users often have Carplay issues with new phones.

 

I don't think it's the car's fault. I think it's the phone. I see you're in New York. Is that NYC? Not unheard of for navigation to get "off" in city settings like that. Especially if some updates have been done to the cell towers the phone is pinging from, or satellite issues. Mine will get confused sometimes as well in my Ford when I'm downtown DC.

The car isn't running the system, the phone is. The car is basically acting like a touch screen monitor connected to the phone.

 

Nope, iPhone 17 running the latest beta version of 26 iOS.

 

That could be your problem. Can you undo the beta as a test?

 

No. iPhone 16 pro max up to date. My POS BMW i5 has issues all the time, form when I first got it.. I don't think it's the phone though, it was recently replaced. The shut down of the car fixed it.

 

I am in NYC, well Brooklyn. But as luck would have it this time I was in "Jersey " as we like to call it, and it went out mid trip while directing through back roads around a lot of turnpike traffic.

 

It's always at the worst time. You could also try wired connection instead of wireless, particularly during road trips outside of the City.

 

Funny you say that I had it plugged in the battery was low. I am kind of leaning toward I may have hit a dead zone and the hand off broke down when coverage returned.

 

I have issues on Android where Waze looses internet/GPS it just never re-connects. Usually end up back at Google Maps.

 

As of recent, I've been finding Waze to be less reliable overall with traffic navigation and stability. Today it had me going through surface streets while gmaps said the freeways were flowing just fine and ended up saving me 8min from the estimated time of Waze telling me to go surface streets, 36min Waze vs 28min gmaps.

 

I guess perhaps just use the built-in car navigation especially if you still have the subscription remaining that has traffic, is it still powered by "here" maps? The good thing about the built-in MB one is that integrates with the AR.

 

Got back last night from a week in Miramar Beach, FL. On road trips when there are few turns, I often use both Waze on my phone (I like the police notifications) and the MB live traffic on screen. Yesterday the MB live traffic had issues several times, showing red line backups, trying to re-route me, and multiple “traffic event ahead” (and a couple of “danger in the area”) notifications when there were no issues. Waze rerouted me once, and the MB live traffic agreed.

 

I’m trying to figure out why i get the danger message. One thing I noticed it’s that it’s often near a school or university. Sometimes always in the same spot.

 

I recommend you use Google Maps for a while to see if it happens there, too, in order to narrow the issue down to just Waze or a more widespread problem. FWIW, I've stopped using Waze on my iPhone several years ago after it rerouted me through terrible city traffic in San Francisco when in retrospect the highway was the much better choice. I should have trusted the car's navigation system instead of Waze. I used to use the Mercedes nav in my current car, but I let the subscription run out last year. I'm just not driving enough for it to be worth it, so now I'm using CarPlay and Google Maps exclusively. I also travel regularly, and pretty much every rental car these days has CarPlay. The new 3D immersive navigation that was recently unveiled in Google Maps is pretty awesome I have to say.

There are a couple of things to understand with CarPlay and GPS. When using wireless CarPlay, the phone receives the GPS signal from the car to augment its own. It's mandatory per specification. The reason for that is that you may have your phone tucked away somewhere, so its own GPS receiver may not have a signal. Also, the car's position signal is generally more accurate, because if you lose line of sight to the satellites, the car continues to track your position using other sensors such as wheel speed, compass and steering angle to estimate your current position. This is extremely useful inside of tunnels. In the past, Google Maps got me completely lost when driving through the large tunnel systems that exist in Europe and I missed exits etc., but nowadays because CarPlay gets the position signal from the car, Google Maps knows where exactly I am inside of the tunnels.

With wired CarPlay, the above is optional, so depending on the manufacturer's implementation of CarPlay, the phone may not get the position signal from the car and instead has to rely on its own GPS receiver. That could be a problem if you place the phone somewhere deep down in the car where it doesn't get a reliable signal. Based on observations, I'm pretty sure that initially my 2019 C63 didn't' supply the position signal to the phone, but over time after an update to my COMAND system, it is now. I am saying these because Google Maps used to drift at times, but now the position is very accurate even driving downtown. I do know, though, that Google also improved GPS in Google Maps. They used to have some issues with it, so it's hard to say.

Anyway, with wireless GPS you are guaranteed that the phone is getting the position signal from the car, so if the issue only happens when the phone is plugged in and not when you are using wireless CarPlay, then the culprit is very likely the phone itself not being able to acquire a reliable GPS signal. If it also happens with wireless CarPlay, then the car's GPS antenna/receiver may be on the fritz. Where does the Mercedes system think you are located when your phone has this issue? That's another test to narrow down where the issue could be.

One last point, I had issues with CarPlay in the past when the phone was getting too hot while charging as it started to throttle the CPU to keep it cool. This hasn't happened with my latest iPhone 16 Pro anymore. I use the 80% charge limit as on typical days I only use about 40-50% battery and setting it to 80% ensures that the battery isn't pegged at 100% on longer trips when I use CarPlay. My car only has wired CarPlay, so it's always charging when using CarPlay. Helps with battery longevity and health. My previous phone was an iPhone XS, which didn't have the charge limit feature. Although, despite everything, the battery in that one lasted 7 years before the capacity was down to 80% and the phone started to throttle the performance. Testament to how good the battery management is in iOS.