Apple Maps volume is too low

On an iPhone, Media Volume, Alarm Volume, Alert/Ringer Volume, and Call Volume are related but not all controlled by the same setting. 

1. Media Volume

This controls the sound produced by apps and media, such as:

YouTube and other videos

Music

Games

Podcasts

Most app sounds

Audio played through the iPhone speaker, headphones, CarPlay, Bluetooth, etc.

How to control it:

Press the Volume Up/Down buttons while media is playing, or

Open Control Center and move the volume slider.

The volume buttons normally control media volume when you are actively playing media.

2. Ringer / Alert Volume

This controls sounds such as:

Incoming phone calls

Text/message notifications

Mail notifications

App notification sounds

Calendar/reminder alerts

Other system alert sounds

Go to: Settings → Sounds & Haptics → Ringtone and Alerts

The Ringtone and Alerts slider controls this group of sounds.

You can also enable Change with Buttons. When enabled, the physical volume buttons can change the ringtone/alert volume when you're not actively controlling media.

Important: Turning media volume down to zero does not necessarily turn notification/ringer volume down to zero.

3. Alarm Volume

This is where there is an important distinction.

For Apple's Clock app alarms, the alarm volume is generally tied to the Ringtone and Alerts volume.

So if you set:

Settings → Sounds & Haptics → Ringtone and Alerts → 50%

your normal Clock alarm will use that level.

Changing the volume of a YouTube video, for example, doesn't change the Clock alarm volume.

Also, the Silent Mode switch does not silence a normal Clock alarm. That's intentional—otherwise it would be rather easy to sleep through an alarm.

4. Call Volume

There are actually two different "call volumes."

A. Volume of the person you're talking to

During a phone call, the side volume buttons control the volume of the other person's voice coming through the earpiece or speaker.

This is separate from your normal media volume.

For example:

You are listening to YouTube → volume at 70%

You make a phone call → you set call volume to 40%

Changing the call volume doesn't necessarily change your YouTube volume.

B. Ringtone volume

Before you answer a call, the incoming ringtone uses the Ringtone and Alerts volume described above.

Once you answer, the volume buttons control the call audio.

One particularly important iPhone setting

Go to: Settings → Sounds & Haptics → Ringtone and Alerts

You'll see the Ringtone and Alerts slider.

Below/around it you'll also find Change with Buttons.

If Change with Buttons is OFF, the physical volume buttons generally won't accidentally change your ringtone/alert volume when you're not playing media.

If Change with Buttons is ON, pressing the volume buttons when you're not actively playing media can change the ringtone/alert level.

So, if you want your alarm and notifications to remain at a fixed level, while freely using the side buttons for YouTube/music, keeping Change with Buttons OFF is usually the better arrangement.

This should help you --> https://support.apple.com/guide/iphone/change-how-you-hear-spoken-directions-iphd3c85c193/ios

Simple, wait for siri to announce the next turn and increase the volume on your phone (or carplay if connected) while siri is speaking.

https://discussions.apple.com/docs/DOC-250004676

Sravankra, Unfortunately the only one you missed out is Siri on Maps which is the problem here.

https://discussions.apple.com/docs/DOC-250004676

lobsterghost1 wrote:

This should help you --> https://support.apple.com/guide/iphone/change-how-you-hear-spoken-directions-iphd3c85c193/ios

Unfortunately that article also omits how to actually change the volume during the journey, which is when in my opinion you need to do it, not in settings in your armchair before the journey.