Why does Apple CarPlay show Google Maps without voice directions in a Subaru?
Answer
This usually means navigation prompt volume is muted or separate from the radio volume, not that CarPlay failed entirely. Raising the Subaru volume while a spoken direction should play, then checking iPhone and Google Maps voice settings, often restores guidance audio.
Before you start: stop right away if…
- Adjust audio and phone settings only while the vehicle is safely parked.
Follow these steps
Raise guidance volume during a prompt
Start a Google Maps route on CarPlay. When a spoken direction should play, turn the Subaru volume knob up. Navigation prompt volume is often separate from FM radio volume.
You should see: You hear the voice prompt, or you confirm volume changes do not affect guidance.
Check Google Maps voice settings on the iPhone
On the iPhone, open Google Maps, go to the profile or Settings area, and confirm navigation voice is on, not muted, and set to a normal guidance level. Also turn off Silent mode and raise the iPhone side volume while Maps is speaking.
You should see: Maps is set to speak directions and the phone is not silenced.
Confirm CarPlay audio focus
On the Subaru screen, make sure Google Maps is the foreground CarPlay app during navigation. Pause other audio sources, then resume the route so Maps can take audio focus.
You should see: Guidance speaks, or another app is clearly holding audio instead.
Restart CarPlay session
Disconnect the iPhone (unplug USB or forget the wireless CarPlay session), restart the phone, reconnect CarPlay, and start the same route again.
You should see: A fresh CarPlay session either restores voice prompts or shows the same volume-related symptom.
Compare with Apple Maps once
Run a short Apple Maps route on CarPlay. If Apple Maps speaks but Google Maps does not, focus on Google Maps voice settings; if both are silent, focus on Subaru prompt volume and phone silent mode.
You should see: You know whether the issue is Google Maps-specific or system-wide CarPlay guidance audio.
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Extra tips
What to look for: Whether map visuals update while prompts are silent, and whether the car volume knob changes guidance volume during an active spoken direction.
Before you change anything: Confirm Google Maps is the active navigation app on CarPlay and a route is running. Park safely before changing audio or phone settings. Avoid deleting the CarPlay pairing until volume and Maps voice settings are checked. Do not install unofficial CarPlay tools from ads.