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.garmin.com/express). On your phone, install the Garmin
Connect app.
This provides easy access to these services for Garmin
devices:
• Software updates
• Map updates
• Course updates
• Data uploads to Garmin Connect
• Product registration
Contacting Garmin Aviation Product Support
• Go to
aviationsupport.garmin.com
support information.
Getting More Information
You can find more information about this product on the
Garmin website.
• Go to
support.garmin.com
articles, and software updates.
• Go to buy.garmin.com, or contact your Garmin
dealer for information about optional accessories and
replacement parts.
• Go to
www.garmin.com/ataccuracy
about feature accuracy.
This is not a medical device.
My device is in the wrong language
You can change the device language selection if you have
accidently selected the wrong language on the device.
1 Hold MENU.
2 Scroll down to the last item in the list, and press
START.
3 Press START.
4 Select your language.
Is my phone compatible with my watch?
The D2 Mach 1 watch is compatible with phones using
Bluetooth technology.
Go to
garmin.com/ble
information.
My phone will not connect to the watch
If your phone will not connect to the watch, you can try
these tips.
• Turn off your phone and your watch, and turn them
back on again.
• Enable Bluetooth technology on your phone.
• Update the Garmin Connect app to the latest version.
• Remove your watch from the Garmin Connect app and
the Bluetooth settings on your phone to retry the pairing
process.
• If you bought a new phone, remove your watch from the
Garmin Connect app on the phone you intend to stop
using.
Troubleshooting
for in-country
for additional manuals,
for information
for Bluetooth compatibility
• Bring your phone within 10 m (33 ft.) of the watch.
• On your phone, open the Garmin Connect app, select
or
, and select Garmin Devices > Add Device to
enter pairing mode.
• From the watch face, hold MENU, and select
Connectivity > Phone > Pair Phone.
Can I use my Bluetooth sensor with my watch?
The watch is compatible with some Bluetooth sensors.
The first time you connect a sensor to your Garmin watch,
you must pair the watch and sensor. After they are paired,
the watch connects to the sensor automatically when you
start an activity and the sensor is active and within range.
1 Hold MENU.
2 Select Sensors & Accessories > Add New.
3 Select an option:
• Select Search All Sensors.
• Select your sensor type.
You can customize the optional data fields
(Customizing the Data Screens,
My headphones will not connect to the watch
If your Bluetooth headphones were previously connected
to your phone, they may connect to your phone
automatically instead of connecting to your watch. You
can try these tips.
• Turn off Bluetooth technology on your phone.
Refer to the owner's manual for your phone for more
information.
• Stay 10 m (33 ft.) away from your phone while
connecting your headphones to your watch.
• Pair your headphones with your watch
Bluetooth Headphones,
My music cuts out or my headphones won't stay
connected
When using a D2 Mach 1 watch connected to Bluetooth
headphones, the signal is strongest when there is a direct
line of sight between the watch and the antenna on the
headphones.
• If the signal passes through your body, you may
experience signal loss or your headphones may
become disconnected.
• If you wear your D2 Mach 1 watch on your left
wrist, you should make sure the headphone's Bluetooth
antenna is on your left ear.
• Since headphones vary by model, you can try wearing
the watch on your other wrist.
• If you are using metal or leather watch bands, you
can switch to silicone watch bands to improve signal
strength.
Restarting Your Watch
1 Hold LIGHT until the watch turns off.
2 Hold LIGHT to turn on the watch.
page 16).
(Connecting
page 51).
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