Bluetooth And Phone Projection Worksheet And TAC Template For Service Consultants And Technicians

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NHTSA ID Number: 10185717

Manufacturer Communication Number: PIC6423

Summary

This Preliminary Information communication requests information from the technician about vehicles that may have Bluetooth or phone projection issues. Dealer should request as much information from the customer on the concern as possible and fill in the questionnaire.

16 Affected Products

Vehicles

MAKE	MODEL	YEAR

BUICK	ENCORE GX	2021
CADILLAC	CT4	2021
CADILLAC	CT5	2021
CADILLAC	ESCALADE	2021
CADILLAC	XT5	2021
CADILLAC	XT6	2021
CHEVROLET	BLAZER	2021
CHEVROLET	COLORADO	2021
CHEVROLET	MALIBU	2021
CHEVROLET	SILVERADO 1500	2021
CHEVROLET	SUBURBAN	2021
CHEVROLET	TAHOE	2021
GMC	ACADIA	2021
GMC	CANYON	2021
GMC	SIERRA 1500	2021
GMC	YUKON	2021

SEOCONTENT-START

Bulletin No.: PIC6423

Published date: 12/8/2020

Preliminary Information

PIC6423 Bluetooth and Phone Projection Worksheet and TAC

Template for Service Consultants and Technicians

Models

Brand:	Model:	Model Years:	VIN:		Engine:	Transmissions:
Brand:	Model:	Model Years:	from	to	Engine:	Transmissions:
Buick	Encore GX	2021	All	All	All	All
Cadillac	CT5	2021	All	All	All	All
Cadillac	Escalade	2021	All	All	All	All
Cadillac	CT4	2021	All	All	All	All
Cadillac	XT5	2021	All	All	All	All
Cadillac	XT6	2021	All	All	All	All
Chevrolet	Blazer	2021	All	All	All	All
Chevrolet	Colorado	2021	All	All	All	All
Chevrolet	Malibu	2021	All	All	All	All
Chevrolet	Silverado	2021	All	All	All	All
Chevrolet	Suburban	2021	All	All	All	All
Chevrolet	Tahoe	2021	All	All	All	All
GMC	Acadia	2021	All	All	All	All
GMC	Canyon	2021	All	All	All	All
GMC	Sierra	2021	All	All	All	All
GMC	Yukon	2021	All	All	All	All

Involved Region or Country

North America

Additional Options (RPO)

With Infotainment system IOR, IOS, IOT, IOU, IOV

Condition

This document serves as an aid for what information service consultants and technicians should gather from both the customer and the vehicle before and during the diagnosis of any Bluetooth or Phone Projection concerns, including

Android Auto and Apple CarPlay.

If you determine it is necessary to contact GM TAC for Bluetooth or Phone Projection concerns, including Android Auto and Apple CarPlay concerns, please include the Bluetooth or Phone Projection TAC Template in your TAC DCM case. The template is located below the Diagnostic Aids.

Correction:

Service Procedure

If you experience a Phone Projection issue

Use these steps to determine if the device is connected over Android Auto, Apple CarPlay, or Bluetooth:
Steps:
1. Open Settings.
2. Select System.
3. Select Phones.
4. The Connected device list shows which connection method is being used. -Android Auto connection

-Apple CarPlay connection

-Bluetooth connection (no connection type listed, just “Outgoing and Incoming calls” or “Incoming calls”) e. If you are still not sure, please take a picture and upload to TAC case through DCM.

If the connection is Android Auto or Apple CarPlay, note if it is wired or wireless. You can confirm its wired projection:
1. If its connected via USB.
2. If projection session is disconnected after disconnecting via USB.
Please check Device OS version and app version. (these steps will vary by phone manufacturer and OS version)
If its an Android Auto issue. Device type. (e.g.: Galaxy 10+) b. Android OS version:
Open the Settings app.
Select About Phone.
Select Software information.
Android version shows the version of Android running on the device.

Android Auto version:

Open the Settings app.
Select Apps.
Select Android Auto.
At the bottom of the screen is the app version. (e.g.: Version 5.4.502264-release) If its a CarPlay issue.
Device version. (e.g.: iPhone7, iPhone XR)
iOS version:
1. Enter phone Settings.
2. Select General.
3. Select About.
4. Software Version shows the iOS version.
5. Please check if its vehicle Demo Mode. (not applicable to RPO IOR)

Cadillac eBay shown, Buick eBay , Chevrolet and GMC similar.

If you experience a wireless CarPlay connection issue:

Please check if its a newly paired device or reconnection of existing device.
Reboot the phone and see if the concern continues.

Important: If you experience an audio quality issue, with any connection method, here are some additional checks

Does the concern happen when parked or only when driving? If so pleased record the location
If the issue is with music streaming:
1. Which music service/app has the concern?
2. Is it happening with music stored on the device or streaming from the app?
  - If streaming, is the device connected to the vehicle WiFi hotspot or using its own data connection?
  - What is the cellular signal strength of the device providing the data connection?
3. Is the issue involving a phone call? If so what is the cellular network strength? Diagnostic Aids
4. Wireless projection is connected via WiFi. If the vehicle passes a WiFi interference area, audio quality and latency issues can be observed.
5. Bluetooth is required to reconnect. The vehicle connects to the phone with Bluetooth then makes the WiFi connection.

Bluetooth or Phone Projection TAC Template

Which connection method is being used?
If the connection is Android Auto or Apple CarPlay? (wireless /wired):
Android OS version – b. Android Auto version – c. iOS version –
Is it in vehicle Demo Mode? (not applicable to RPO IOR) (Y/N)

If you experience a wireless CarPlay connection issues:

Is it newly paired or reconnected device?
Does concern continue after device Reboot? (Y/N)

For audio quality concerns:

Does it happen when parked or driving? If so record the location.
If the issue is with music streaming:
1. Which music service/app has the concern?
2. Is it happening with music stored on the device or streaming from the app?
3. If streaming, is the device connected to the vehicle WiFi hotspot or using its own data connection?
4. Record the cellular signal strength of the device providing the data connection. (# of bars) –
Is this issue is involving a phone call? If so record the cellular signal strength. (# of bars) –

Version History

Version	1
Modified	12/08//2020 – Created on.

SEOCONTENT-END

1 Associated Document

Manufacturer Communications

Bulletin No.: PIC6423
Published date: 12/8/2020

https://www.nhtsa.gov/recalls?nhtsaId=10185717

MC-10185717-9999.pdf 104.012KB

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Bestseller No. 1

Nulaxy 54W Bluetooth 5.3 Car Adapter with 4 Charging Ports [PD 36W & QC3.0 18W], Wireless Radio FM Transmitter with Deep Bass Player & 5 Colors LED Backlit, Hands-Free Calling, Black

54W High Power Fast Charging, 4-Port Synchronous Charging: Nulaxy Bluetooth car adapter integrates PD36W and QC18W, offering a high-speed and efficient charging solution. Its innovative four-port design supports parallel charging of multiple devices, effortlessly overcoming battery anxiety and enhancing charging efficiency.
Technological Leadership, Revolutionary Bluetooth 5.3: The iphone fm transmitter for car radio uses the latest Bluetooth 5.3 technology, significantly improving connection speed and data transmission efficiency. Enhanced sound quality ensures rapid and stable connections, providing a clearer, smoother experience for both calls and music playback.
Stunning Bass, Colorful Lighting Effects: One-touch activation of stunning bass effects reproduces the true texture of music, offering an unparalleled musical experience. The five-color lighting design provides accurate perception at night, ensuring easy and safe operation, making nighttime driving more relaxed.
Voice Commands and Precise Touch Control: Our bluetooth cigarette lighter adapter supports smart voice navigation from your phone for truly hands-free driving. Its unique raised button design provides precise, sightless control, ensuring safety and convenience while driving.
Comprehensive Safety Assurance and Wide Compatibility: FM modulator bluetooth for car provides all-around safety protection, including over-current, over-voltage, overheating, and short-circuit protection, ensuring the safety of you and your devices. Its wide compatibility supports 12V to 24V vehicle voltages, suitable for most cars. Nulaxy continues to innovate, offering industry-leading car Bluetooth adapter that ensure safety and compatibility. (Please compare the size between the transmitter and your car cigarette lighter )

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Wireless Freedom - Say goodbye to tangled cords with the Twelve South AirFly. Listen to audio from in-flight entertainment, gym equipment, gaming devices, or any 3.5mm audio jack to your AirPods, earbuds, or wireless headphones.
Extended Battery Life - Enjoy uninterrupted audio for over 20 hours on a single charge, perfect for long-haul flights. Plus, the AirFly can be used while charging with the included USB-C cable, ensuring you never run out of battery life.
Compact and Portable - Designed for convenience, the Twelve South AirFly is lightweight and easy to carry, making it an essential travel accessory for anyone who values comfort and high-quality audio on the go.

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【Latest Bluetooth 5.4 Chip】 The Bluetooth car adapter is equipped with the latest Bluetooth 5.4 technology, providing up for 33 feet long range transmission and fast pairing speed with your smartphone, giving you a pleasant music environment while driving.
【Wireless Music Streaming】The Bluetooth Aux receiver can turn your non-Bluetooth devices such as car audio/home audio/ wired speakers into wireless. Just pair it with your phone and start listening to your favorite music anytime or having a party with your friends when plug it into your home speaker.
【Hands-Free Calling】 This bluetooth aux adapter has a built-in HD microphone, just press the button to answer or hang up, pause or play music, you don’t have to look down at the phone, so that you can drive safely.
【Plug and Play】 Simply plug it into the 3.5mm auxiliary jack and power it through the USB port! Start your car and the Bluetooth music receiver will automatically pair your phone immediately.
【Space-Saving Design】The size of this car adapter is very mini, ultra-compact and lightweight, you can carry this adapter with you, and when you need it, you can easily take it out and use it immediately.

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Aptx Low Latency: With advanced aptx low latency technologies, it can deliver up 80% lower latency. Whether you are playing video games or watching movies, you'll experience high quality sound without audio and video to be out of sync issue.
2-in-1 Transmitter and Receiver: In tx mode, it is very easy to turn a non-bluetooth tv, pc, gym/flight equipment into bluetooth transmitter. In rx mode, it can make music stream to those speakers/car/home stereo systems which without bluetooth.
Wide Compatibility: 1Mii bluetooth audio adapter supports the devices with 3.5mm aux/2RCA audio jack.
Long Battery Life: 1Mii bluetooth receiver for home stereo deliver 12 hours in transmitter mode and up to 15 hours in receiver mode, all on one charge.

SaleBestseller No. 5

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[Upgraded Bluetooth 5.4 Technology] - The latest Bluetooth 5.4 technology, optimizing the transmission delay and connection defect problems, Bluetooth 5.4 will bring you a faster, more stable and smarter connection with less sound quality loss, uninterrupted calls and music experience. It takes only 1 second to complete pairing, and no need to repeat pairing after the first successful pairing with your device.
[Intelligent Dual USB Ports & Fast Charging] - Coming with 2 USB ports(PD 36W and USB A 12W), can charge two devices simultaneously. Built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection, it will effectively ensure safe charging.
[Great Clear Music Streaming] - Bluetooth 5.4 provides a stable connection, while Noise Suppression (CVC) technology and echo-cancellation grant an amazing hands-free calling experience. In addition, this Bluetooth car adapter supports Bluetooth connection and USB stick connection (≤64GB).
[Hi-Fi Deep Bass & Backlit] - Just press the button "B" and you will enjoy powerful deep bass and immersive stereo sound. The high-fidelity Hi-Fi sound quality will also make the music more dynamic and pleasing to the ear, taking your passion for music to a new level.

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[WIDE COMPATIBILITY] The Relay works with any device that outputs audio via AUX (i.e. planes, TVs, gym equipment, etc.) and can connect to any and all Bluetooth headphones or earbuds (i.e. AirPods Pro 2). The included dual 3.5mm adapter also makes the Relay usable on any flight, regardless of connector type. When pairing, make sure your Bluetooth headphones are in pairing mode. If you're unsure how to do this, scan the product QR code for the IUG guide.
[APTX SUPPORT] With aptX-Adaptive codec support, the Relay transmits high-quality audio when used with applicable listening devices. The Relay also utilizes Bluetooth 5.3 technology for stable, reliable connections.
[LISTEN TOGETHER] The Relay’s intuitive LEDs allow you to easily connect up to two devices and share the audio with a friend while you fly.
[LONG BATTERY LIFE] A battery life of up to 20 hours provides sufficient battery life to last throughout your air travels.
[EASY CONTROLS] Adjust the volume, pair, reconnect, clear pairing history, and show battery level with the Relay’s built-in controls. Monitor your connections and battery levels with its convenient LED indicators.

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【WIDE COMPATIBILITY 】Our Bluetooth 5.3 Transmitter for airplane easily stream wireless audio from in-flight. It works with device which outputs audio (such as planes, TVs, gym equipment, etc.) and can connect to any and all Bluetooth headphones or earbuds. Equip 3.5mm cable and male to female adapter for any flights.
【Dual Mode Made Simple 】 Receiver mode (for wired speakers, Car, Wired earphones) , Transmitter mode (for wired Airplane, TV, Computer, Gym) - No app needed!
【HiFi Sound Quality】 Bluetooth adapter built with bluetooth 5.3 technology. Low latency and offer a fast and stable transmission.
【Dual Link】This bluetooth transmitter can be paired with two wireless headphones at the same time in TX mode. You can share and enjoy music and audio at the same time.
【Long Battery Life】 Enjoy up to 25 hours of continuous use on a single charge. The Type-C fast charging gets you back to full power in 3 hours and 90 days standby time. Simple Setup and the dual connect ports USB or 3.5mm audio devices can be use simultaneously.

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COMSOON Bluetooth Receiver for Car, Noise Cancelling 3.5mm AUX Bluetooth Car Adapter, Wireless Audio Receiver for Home Stereo/Wired Headphones, Hands-Free Call, 16H Battery Life - Black+Silver

【Enjoy Wireless Streaming Music】This car Bluetooth adapter can be connected to non-Bluetooth car audio systems, home stereos, speakers, wired headphones via the 3.5mm AUX adapter; And equipped with a Bluetooth 5.0 chip for stable connection / fast transmission / wide signal range. Just pair it with your phone and start listening to your favorite music!
【Intelligent Noise Reduction Tech】Our Bluetooth audio receiver adopts the latest CVC8.0 Noise Cancellation and Digital Signal Processor (DSP) technologies, which can eliminate echo and block out intrusive background noise (such as wind, traffic, or crowds), providing you with crystal-clear calling sounds.
【Up to 16 Hours of Battery Life】The working time of this aux Bluetooth adapter is up to 16 hours when making calls or playing music. And it takes only 2.5 hours to fully charge the device by using a Type-C fast charging cable (Included in the package). In addition, this Bluetooth music adapter can be used while charging, which is very convenient.
【Hands-free Calling & Navigation】A built-in microphone and one “MFB” button to answer / redial / hang up / reject calls, help you make hands-free calls. And the Bluetooth audio adapter supports broadcasting voice notification from existed navigation App. You don’t have to look down the phone on the move. Make sure you drive safely!
【Dual Connection】The portable Bluetooth stereo adapter can be paired with 2 devices at the same time. You can enjoy your music and never worry about missing any calls. Once paired, the car receiver will automatically reconnect to your last paired Bluetooth devices, as long as they are within the wireless range.

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LENCENT FM Transmitter, Bluetooth FM Transmitter Wireless Radio Adapter Car Kit with Dual USB Charging, Audio Receiver Car Charger MP3 Player, Support Hands-Free Calling, TF Card & USB Disk

Crystal Clear Music Streaming: LENCENT T25 is anti- statics designed, and equipped with noise and wind suppressed by CVC technology that can achieve full duplex sound quality. You can stream music on your car stereo via Bluetooth/ USB Flash Drive (≤32GB) / microSD Card (≤32GB). WMA MP3 WAV APE FLAC music formats are all supported
Intelligent Dual USB Ports & Safe Charging: Coming with 2 USB ports(5V-2.4A and 5V-1A), you can charge two devices simultaneously. Built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection, it will effectively ensure safe charging
Hands-Free Calling & Voice Navigation: Bluetooth provides a stable connection, while Noise Suppression (CVC) technology and echo-cancellation grants an amazing hands-free calling experience. Besides, you can also get clear voice navigation from your phone’s app, which means driving will be more safely
Car Battery Voltage Detection & Blue Ambient Light: The FM transmitter will display car’s voltage when plugged into the cigarette lighter. Keep abreast of car battery health at all times to avoid problems when driving. With the circle of blue backlight around this car charger, it will greatly simplify your operation for safer driving. (Please compare the size between the transmitter and your car cigarette lighter )
Wider Range & Compatibility: This Bluetooth transmitter is well compatible with most of the smartphones and more devices that equipped with bluetooth function. It will automatically connect to its memorized paired Bluetooth device when power on. Also, with the wider range from 88.1MHz - 107.9 MHz, you can get more stable and consequent music experience without interference

SaleBestseller No. 10

LIHAN USB C Bluetooth Adapter for Car, AUX Wireless FM Radio Transmitter, Handsfree Calling & Audio Receiver, MP3 Music Player, QC3.0 & Type-C PD USB Charger,7 Colors LED Backlit

[7 COLORS LED BACKLIT MODE]This Bluetooth car adapter has 7 color lighting modes and 1 cycle color mode that can get a visually stunning display of colors, you can keep 1 color or play the colors in turn. Perfect for using in the dark and improving driving safety.
[HANDSFREE FM BLUETOOTH TRANSMITTER]The cigarette lighter Bluetooth adapter connect the cellphone via Bluetooth, One-click to answer/redial/hang up or reject calls. Built-in microphones and noise suppression (CVC) tech for clearer Hands-Free Calls. You can keep your eyes on the road making driving more interesting and safe.
[TYPE-C & QC USB CHARGER] This FM transmitter Bluetooth fits a 12V/24V car cigarette socket. It can fast charge two devices simultaneously via the USB-C (PD3.0) port and QC3.0 USB port. The USB-C Port can fast-charge devices compatible with Samsung, iPhone, and Google from 0 to 50% in half an hour. The Quick Charge 3.0 USB Port can charge devices from 0% to 80% within 35 minutes.
[CAR RADIO ADAPTER &MUSIC PLAYER]The Bluetooth radio transmitter connects the car radio via the FM channel. Then you can enjoy music from Bluetooth devices/TF card(≤64GB) /USB flash drive(≤64GB) to the car radio.
[SAFE TO USE]This FM transmitter Bluetooth for cars has built-in over-current, over-voltage, and short-circuit protection, effectively preventing multiple problems. Worry-free 12-month.We are always here to help with any issues with the product.

Last update on 2025-06-10 / Affiliate links / Images from Amazon Product Advertising API

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Bluetooth and Phone Projection Worksheet and TAC Template for Service Consultants and Technicians – 2021 Buick Cadillac Chevrolet GMC

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