troubleshooting bluetooth

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TROUBLESHOOTING BLUETOOTH CALLING ISSUES

If your vehicle is equipped and your phone is connected through available Bluetooth and you are having issues with the phone disconnecting, calls breaking up or calls sounding distorted, here are some possible solutions. 


Symptoms/Troubleshooting Steps

Symptoms/
Troubleshooting Steps


Do This First

Sometimes, you may have trouble with Bluetooth because your phone’s software is out of date. So, if you’ve already checked if your phone is compatible using the Bluetooth Device Compatibility Guide, the next step is to make sure you have the latest software version updated on your phone.


My Phone Still Disconnects

If your phone still disconnects, your cellular signal may not be strong enough. See if the problem persists when your signal is stronger.

 

Also, if you are on a call when the engine is off, the vehicle may time out of accessory mode to save the battery. When this happens, the connection between your phone and the vehicle will disconnect and the call will be transferred back to your phone.


Calls Break Up or Sound Distorted

Here are some possible causes and remedies:

  • Your cellular signal may not be strong enough. See if the issue persists when your signal is stronger.
  • Your phone may also be paired to other devices in the vehicle. Try disconnecting the other devices and see if the issue persists.
  • Your phone may be running other Bluetooth activity in the background (e.g., searching the contact list or downloading a message). The issue should stop when the Bluetooth activity stops.

Call Volume is too High or too Low

Call volume is determined by both the volume setting on your phone and the audio system’s volume. To adjust:

  1. On the phone: Use the controls on the phone itself to adjust the phone’s volume (you may need to enable this setting on your phone).
  2. On the audio system: Use the volume knob, touchscreen slider or steering wheel controls to adjust the audio system’s volume.

Once you end a phone call, you may need to readjust the audio system’s volume.


RELATED LINKS AND SOURCES


Q&As

WHY CAN'T I MAKE A BLUETOOTH CALL?

There are several factors that may affect your Bluetooth call performance. A problem may be caused by your phone’s or vehicle infotainment system’s software. Be sure you have the latest software version for your phone. If you’ve updated your phone and are still experiencing Bluetooth calling concerns, try deleting your phone’s pairing and then pairing it again.

MY PHONE WON’T AUTOMATICALLY CONNECT TO BLUETOOTH.

Select the phone or vehicle you’d like to connect. In most vehicles, you can only have one active Bluetooth connection at a time when your vehicle is on. Check your phone’s and vehicle’s paired devices lists to see which phone is active. The system defaults to the last paired device used in your vehicle. If that device isn’t active, it goes down the list of paired devices until it finds one that is active.

MY PHONE IS PAIRED BUT WON’T CONNECT TO BLUETOOTH.

Check your phone’s and vehicle’s paired devices lists to ensure that the connection is active. If it is in one of these lists but is not active, simply select the phone or vehicle you’d like to connect. If you are still experiencing issues, you will need to delete and pair again by following the initial pairing instructions.

MY VEHICLE TRIES TO CONNECT TO AN OLD PHONE.

Delete the phone that is no longer in use from your vehicle’s paired devices list.

MY PHONE RANDOMLY UNPAIRS FROM MY VEHICLE.

When you pair a phone with a vehicle, it involves a process of exchanging security credentials to allow your vehicle to gain access to it. An encryption key is generated and if the key is lost by either your phone or the vehicle, they may need to be paired with each other again. Follow the instructions for How to Pair Your Bluetooth Smartphone.

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Information on this page is specific to the Cadillac models below. If your vehicle is not on the list or these instructions don't apply, then please see your Owner's Manual.

  • ATS Coupe 2015-2019
  • ATS-V Coupe 2016-2019
  • ATS Sedan 2013-2018
  • ATS-V Sedan 2016-2018
  • CT4 2020-2022
  • CT5 and CT5-V 2020-2022
  • CT6 2016-2020
  • CT6-V 2019-2020
  • CTS Coupe 2011-2014
  • CTS-V Coupe 2011-2015
  • CTS Sedan 2014-2019
  • CTS-V Coupe 2016-2019
  • CTS Sport Wagon 2010-2013
  • CTS-V Sport Wagon 2011-2014
  • ELR 2014, 2016
  • Escalade and Escalade ESV 2015-2022
  • SRX 2010-2016
  • XT4 2019-2022
  • XT5 2017-2022
  • XT6 2020-2022
  • XTS 2013-2019
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  • Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Read the vehicle’s owner’s manual for important feature limitations and information.

  • Functionality varies by model. Full functionality requires compatible Bluetooth® and smartphone, and USB connectivity for some devices.

  • Vehicle user interface is a product of Apple® and its terms and privacy statements apply. Requires compatible iPhone® and data plan rates apply. Apple CarPlay, Siri, iPhone and Apple Music are trademarks of Apple, Inc., registered in the U.S. and other countries.

  • Vehicle user interface is a product of Google and its terms and privacy statements apply. Requires the Android Auto app on Google Play and a compatible Android smartphone. Data plan rates apply. You can check which smartphones are compatible at g.co/androidauto/requirements. Android, Google Play and Android Auto are trademarks of Google LLC.

  • Functionality is subject to limitations and varies by vehicle, infotainment system, and location. Select service plan required. Certain Alexa Skills require account linking to use. Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its affiliates. See onstar.com for additional details.

  • The system wirelessly charges one compatible mobile device. Some phones have built-in wireless charging technology and others require a special adaptor/back cover. To check for phone or other device compatibility, see my.cadillac.com/learn or consult your carrier.

  • Always pay attention while driving and when using Super Cruise. Do not use a hand-held device. Visit cadillac.com/supercruise for compatible roads and full details.

  • MSRP excludes tax, title, license and dealer fees.

  • Read the vehicle's owner's manual for important feature limitations and information.

  • Lower-profile tires wear faster. Tire and wheel damage may occur on rough or damaged roads or from surfaces, curbs, debris or obstacles. This damage is not covered by the GM New Vehicle Limited Warranty. For more details, go to my.cadillac.com/learnabout/tires or see your dealer.

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