NHTSA ID Number: 10224837
Manufacturer Communication Number: 20-NA-051
Summary
This informational bulletin provides information on the Low Cab Forward trucks and the Alpine Radio Exchange Program.
46 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | 3500 | 2016-2022 |
| CHEVROLET | 4500 | 2016-2020, 2022 |
| CHEVROLET | 4500HD | 2017-2022 |
| CHEVROLET | 4500XD | 2017-2022 |
| CHEVROLET | 5500HD | 2017-2022 |
| CHEVROLET | 5500XD | 2018-2022 |
| CHEVROLET | 6500HD | 2022 |
| CHEVROLET | LOW CAB 3500 | 2016-2019 |
| CHEVROLET | LOW CAB 4500 | 2016-2017 |
| CHEVROLET | LOW CAB 5500 | 2016-2017 |
| CHEVROLET | LOW CAB FORWARD 6500 | 2018 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-051
Date: October, 2022
MC-10224837-0001.pdf 128.671KB
- Seamless Bluetooth Connectivity: Car stereo with Bluetooth technology allows you to enjoy hands-free calling and high-quality wireless music streaming from your iPhone and Android devices.
- Powerful, Clear Audio Performance: Equipped with a built-in MOSFET amplifier, this Pioneer car stereo delivers up to 50 watts per channel to four speakers for rich, dynamic sound across your entire vehicle.
- High-Quality Music Playback via USB: Enjoy clear, detailed sound from your favorite tracks using the front USB inputโcompatible with FLAC, MP3, and WMA formats.
- Compact 1-DIN Design: Single din radio is designed with a super-short chassis to make installation easy, even in vehicles with limited dash space, without compromising on performance.
- Simple Sound Customization: Dedicated Direct EQ Keys let you adjust bass, treble, and balance settings on the Pioneer stereo to match your personal listening style.
- ใBluetooth ConnectivityใHands-free Bluetooth car stereo features easy pairing, supporting crystal-clear hands-free calling for safer driving. This car radio is equipped with a convenient button for answering and ending calls, Siri or Google Assistant can be activated directly by voice on your phone while keeping your eyes on the road. Stream your favorite music and top Spotify podcasts including The Daily, The Joe Rogan Experience to enjoy daily news, stories, and entertainmentโideal for staying informed during your morning commute or making road trips more engaging. Bluetooth streaming enables seamless music playback, making every drive more convenient and enjoyable.
- ใFM RadioใHigh-quality digital stereo FM radio, can fully automatic, semi-automatic and accurate channel search. (Radio frequency: 87.5-108MHz) 18 radio presets, and has a memory function to save the radio. You can accurately listen to TV broadcasts, news, music, weather forecasts, travel information and enjoy your driving time at any time. (without RDS/CD function)
- ใUSB Car RadioใCar audio can be connected to your external devices (subwoofers can be connected externally) through large-capacity SD/USB storage devices, dual USB Port, AUX input. Equipped with a 2.1A USB fast charging port, which is 50% faster than ordinary charging, so there is no need to worry about the lack of power on the phone.
- ใOther FunctionsใThis car radio supports convenient app control for both iOS and Android smartphones, letting you operate the unit easily while driving or on the go. It features 7 adjustable LED backlight colors to customize your carโs interior ambiance. The built-in EQ offers 3 sound presets (Pop, Rock, Classic) for different music styles, and supports high-quality audio playback in MP3, WMA, APE, FLAC and WAV formats, perfect for daily commutes, road trips and family travels. A wireless remote control is also included, allowing rear passengers to adjust volume, play or pause music freely during long drives.
- ใOur Serviceใ Note: This Single Din Radio supports only 12V DC vehicle voltage and is not compatible with 24V vehicles. Please refer to the detailed wiring diagram in the product images before installation, and use the included wiring harness to make proper connections to avoid malfunction.If you have any questions, please feel free to contact us. We are always ready to assist you with reliable support, and your satisfaction is our top priority.
- ใHigh Quality Car Stereo Playerใ- Our double din car stereo size with 7.01"(L)*3.94"(W)2.56"(H), please check the size of your car's radio before ordering. 7inch double din car stereo with 1024*600 Full HD touch screen gives you a fantastic experience. You can enjoy the stream music and the clear picture with your family. Hope you have a good time.
- ใDouble Din Car Stereo Phone Mirror Linkใ- Support mirrorlink and navigation function for most the android cell phone and iPhone, you can connect your smartphone to car audio via a smartphone data cable, easily connect and sync any content (such as video, music, GPS Navigation etc) to the car player displayed on a large screen. Note: the stereo player is not a GPS unit, it gets GPS navigation function by connecting to the cellphone.
- ใ7 inch Double Din Car Radio With Bluetooth 5.0 and FM ใ- Bluetooth 5.0 and microphone allow you to answer callings, listen to music and media sounds from devices with Bluetooth function. Take Phone Call Hands Free - Free both your hands by dialing and listening to a call on radio by BT connection. It will ensure the safety of your way. High-quality FM radio stereo receiver, three kinds of channel search mode, listen to music, news and traffic information, anywhere and enjoy yourself.
- ใCar Stereo Double Din Inputsใ- USB /SD/AUX input. car audio receivers support vast USB, TF Card(Up to 32G) storage equipment, you can download the songs and videos you like into the storage equipment to play. AUX audio input, support external aux(3.5mm plug) to input into the audio, such as navigation, MP3, MP5. Charging function, the USB interfaces are support of cellphones' charging, no worries about having no power. Support Remote Control.
- ใStandard Double Din Stereo with Backup Cameraใ- Parking has never been easier with this premium double din car stereo which supports front and rear camera, for a safer and time-efficient experience! Simply shift into reverse and the system powers on the camera automatically, for optimal visibility no matter the weather conditions! If you encounter any operation or other problems, please contact us (click "Contact Seller" on your order page)
- DIMENSIONS: 7.94" x 3.94โ x 2.28โ, Mounting Dimensions: 7.13" x 2.63" x 2"
- FEATURES: Bluetooth (Hands-Free Calling and Wireless Music Playback), USB, AUX, AM/FM, Push-To-Talk, Mechless
- INPUTS/OUTPUTS: The USB port gives you the option to have a vast library of audio files at your fingertips. The auxiliary input is a convenient way to hook up to your MP3 player - Front & Rear Pre-Amp Outputs
- WHAT IS INCLUDED: Stereo, Installation Brackets, Power & Speaker Harness
- WARRANTY: BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty.
- Bluetooth Connectivity - With built-in Bluetooth technology, connect your smartphone wirelessly. This allows for convenient hands-free calling, enabling you to make and receive phone calls while keeping your hands on the wheel and eyes on the road.
- USB Input - Receiver is equipped with a USB port for easy connection to your portable devices, including smartphones, MP3 players, or USB drives. Play music directly from the device or charge it on the go.
- Media Playback - Car stereo supports an array of file formats such as MP3, WMA, AAC, and WAV, ensuring compatibility with your entire digital music library. Enjoy seamless connectivity with USB inputs and experience crisp, high-quality audio.
- Advanced Sound Retriever - Immerse yourself in enhanced audio quality with the Advanced Sound Retriever feature. Innovative technology intelligently restores audio details lost during compression, resulting in clearer, more dynamic sound reproduction.
- Installation & Operation โ Installing this mechless head unit in a wide variety of applications is easier than ever with a chassis depth of less than 4โ. See Ownerโs Manual for full detail and operation. Dimensions โ 3.875โ x 7โ x 2"
Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API
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Copyright 2022 General Motors
LLC. All Rights Reserved. Service Bulletin Bulletin No.: 20-NA-051 Date: October, 2022 INFORMATION Subject: Alpine Radio Exchange Program Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet
All Medium Duty (LCF) 2016 2023 All All Involved Region or Country North America Additional Options (RPOs) Equipped with Alpine Bluetooth Radio Information Important: Service agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws. This bulletin outlines the procedures for using the Alpine Exchange Program (the โExchange Programโ). The Exchange Program must be used when any Alpine radio covered by this bulletin is repaired under warranty and may also be used for radio repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio repairs not covered under warranty. This bulletin applies to the following Alpine radio models: Alpine Radio Model No. Radio Exchange Bank Stock Description CDE-143BT Yes AM/FM CD iLX-207 Yes AM/FM CD HCE-C1100 Yes Back Up Camera Note: Alpine brand radios are easily identified by the Alpine logo and model numbers imprinted on their faceplates. Audio System Troubleshooting Many audio systems returned under warranty are later determined to have had no defect. Please follow the procedures outlined below for troubleshooting audio system conditions. Refer to the Entertainment sub-section of the applicable Workshop Manual for further information. General Audio Intermittent Conditions (condition comes and goes) โข Ask the customer to identify the condition with specificity (such as abnormal noise, failure in all modes). โข Try to reproduce the intermittent condition, duplicating similar road qualities under which the customer experienced the condition. Noisy Conditions โข Inspect for grounded antenna lead. โข Inspect for tight and secure battery terminals. โข Verify that the radio is chassis-grounded. โข Verify that the chassis harness is connected securely to the radio. Radio Reception Radio reception may be affected by factors other than the radio or antenna, such as signal strength or distance to the radio station. AM reception is very sensitive to static from sources such as power lines, traffic lights, electrical signs, electrical storms in the area, and windshield wipers. Page 2 October, 2022 Bulletin No.: 20-NA-051 AM radio signals bend around obstacles and tend not to be affected by tall buildings or mountains. As a result, the range of an AM station may increase dramatically and cause interference (station mixing) between two stations that broadcast at the same frequency from different locations. If reception on AM stations is weak, substitute a test antenna and lead. If reception continues to be weak, replace the radio with an exchange unit from the appropriate radio manufacturer. FM radio signals can be blocked or reflected by tall buildings and mountains. Sometimes the antenna picks up a direct signal and a reflected signal at the same time, causing a distorted sound. If the customer complains of weak reception on FM stations, check it in comparison to the reception on another radio. If the other radioโs FM reception is noticeably better, replace the radio with an exchange unit. If reception is the substantially similar or the same, explain or demonstrate the comparison results to the customer. No Sound from Radio Check the condition of the fuses and replace any that are non-functioning or burnt. If only AM radio reception is dead, verify that the antenna plug is good and repair or replace the antenna plug if necessary. If the condition still exists, install a test antenna. If AM reception is then normal, replace the faulty antenna. If the condition still exists, replace the radio. Antenna Fully extend and retract the antenna several times. If the antenna does not extend and retract normally, clean the antenna shaft and apply WD-40 lubricant or equivalent. Verify antenna operation and replace if necessary. Pairing and Clearing Bluetooth The radio can hold a maximum of three (3) paired phones. If the radio is not accepting a pairing request โ a clearing command is needed to clear the previously paired phones. Once the Bluetooth memory is cleared, new phones may then be paired with the radio. Bluetooth Functionality Exchange Procedure (USA) 1. When a customer contacts the dealership concerning a radio issue, the dealer must first use standard troubleshooting procedures as outlined in this bulletin to determine whether the source(s) of the problem(s) is a speaker, antenna, power supply, area reception or other non-radio condition โ as opposed to the radio itself. If a CD is stuck in the unit, DO NOT attempt to remove it. The radio manufacturer will return any stuck CDs to your dealership. Important: DO NOT CUT any wires when removing a radio. Any CUT wires will VOID the warranty. 2. If after a proper diagnosis it is determined that the radio is faulty, the dealer should document the following information prior to contacting the radio manufacturer. 2.1. Dealer name, address and dealer code 2.2. R.O. number 2.3. Vehicle Identification Number (VIN) 2.4. Vehicle delivery date 2.5. Vehicle mileage 2.6. Radio model number (see radio part number label) 2.7. Description of failure (such as, CD wonโt eject, no illumination, reduced sound quality and the like) 2.8. Customer name and address. Call the Alpine Radio Factory Service Center in Garden Grove, California with this information or fax a completed copy of the U.S.A. Warranty Exchange form found at the end of this bulletin to the number shown in step 5 below. Note: DO NOT remove the faulty radio until you receive a replacement unit. After you receive the replacement radio from the manufacturer, notify the customer to schedule the installation of the (NEW) exchange unit. Important: The faulty radio MUST be sent back to the manufacturer WITHIN 30 DAYS of the exchange unitโs original shipment date to the dealer. Be sure your customer returns promptly for installation. If the customer cannot return for installation in time for you to send back the failed radio within the 30-day period, please ship the uninstalled (NEW) exchange unit back to the manufacturer using the procedure outlined in step 5 below and note on the claim invoice that the customer did not return for the repair. 3. BEFORE replacing the radio, be sure that the model numbers on the faulty (OLD) radio, the (NEW) exchange unit and the claim invoice all match. If the model numbers DO NOT match, notify the radio manufacturer immediately. 4. After installing the new exchange unit, pack the old faulty radio the same way the new exchange unit was packed when you received it. Enclose a copy of the claim invoice in the package containing the faulty old radio. Note: INCORRECT and/or DAMAGED radios received by the manufacturer will be RETURNED to the dealer with a chargeback. Additionally, the following conditions are NOT WARRANTABLE: โข Damage from liquids (spills) โข Damage from attempted theft โข Modifications โข Any tampering with the sealed unit Bulletin No.: 20-NA-051 October, 2022 Page 3 5. As described on the claim invoice, use the provided return label to return the old unit to the radio manufacturer. Old units must be shipped back to the radio manufacturer WITHIN THIRTY (30) DAYS of the exchange unitโs original shipment date. If the customer did not return for installation within this time period, please ship the uninstalled exchange unit back to the manufacturer and note on the claim invoice that the customer did not return for the repair. Any units not returned within thirty days will appear on the Dealerโs State of Account as a chargeback. All chargebacks are considered FINAL, regardless of whether or not the unit is eventually returned. Note: DO NOT send radios to Isuzu
Commercial Truck of America or AIPDN. Return ALL old units to the following Alpine Radio factory service center address. Alpine Electronics OF America, Inc 2150 195th Street Torrance, CA 90501 Tech Support: 800-832-4101 Email: [email protected] Exchange Procedure (Canada) 1. When a customer contacts the dealership concerning a radio issue, the dealer must first use standard troubleshooting procedures as outlined in this bulletin to determine whether the source(s) of the problem(s) is a speaker, antenna, power supply, area reception or other non-radio condition โ as opposed to the radio itself. If a CD is stuck in the unit, DO NOT attempt to remove it. The radio manufacturer will return any stuck CDs to your dealership. Important: DO NOT CUT any wires when removing a radio. Any CUT wires will VOID the warranty. 2. If after a proper diagnosis it is determined that the radio is faulty, the dealer should document the following information prior to contacting the radio manufacturer. 2.1. Dealer name, address and dealer code 2.2. R.O. number 2.3. Vehicle Identification Number (VIN) 2.4. Vehicle delivery date 2.5. Vehicle mileage 2.6. Radio model number (see radio part number label) 2.7. Description of failure (such as, CD wonโt eject, no illumination, reduced sound quality and the like) 2.8. Customer name and address In order to obtain an exchange unit, fax a completed copy of the Alpine Canada Audio Exchange form found at the end of this bulletin to the Alpine Radio Factory Service Center in Ontario Canada at the fax number found in step 5 below. Note: DO NOT remove the faulty radio until you receive a replacement unit. After you receive the replacement radio from the manufacturer, notify the customer to schedule the installation of the (NEW) exchange unit. Important: The faulty radio MUST be returned to the manufacturer WITHIN 30 DAYS of the exchange unitโs original shipment date to the dealer. Be sure your customer returns promptly for installation. If the customer cannot return for installation in time for you to send back the failed radio within the 30-day period, please ship the uninstalled (NEW) exchange unit back to the manufacturer using the procedure outlined in step 5 below and note on the claim invoice that the customer did not return for the repair 3. BEFORE replacing the radio, be sure that the model numbers on the faulty (OLD) radio, the (NEW) exchange unit and the claim invoice all match. If the model numbers DO NOT match, notify the radio manufacturer immediately. 4. After installing the new exchange unit, pack the old faulty radio the same way the new exchange unit was packed when you received it. Enclose a copy of the claim invoice in the package with the faulty old radio. Note: INCORRECT and/or DAMAGED radios received by the manufacturer will be RETURNED to the dealer with a chargeback. Additionally, the following conditions are NOT WARRANTABLE: โข Damage from liquids (spills) โข Damage from attempted theft โข Modifications โข Any tampering with the sealed unit 5. As described on the claim invoice, use the provided return label to return the old unit to the radio manufacturer. Old units must be returned to the radio manufacturer WITHIN THIRTY (30) DAYS of the exchange unit original shipment date. If the customer did not return for installation within this time period, return the uninstalled exchange unit and note on the claim invoice that the customer did not return for the repair. Any units not returned within thirty days will appear on the Dealerโs State of Account as a chargeback. Dealers will receive credit for any units returned after a chargeback has been processed minus a 15% RESTOCKING FEE. Note: DO NOT send radios to Isuzu
Commercial Truck of America or AIPDN. Return ALL old units to the following Alpine Canada Radio factory service center address. Gentec International 90 Royal Crest Court Markham, Ontario, CANADA L3R 9X6 Main Phone Number: (905) 513-7733 E-mail: [email protected] Page 4 October, 2022 Bulletin No.: 20-NA-051 Order Forms 5536375 Bulletin No.: 20-NA-051 October, 2022 Page 5 5536376 Page 6 October, 2022 Bulletin No.: 20-NA-051 Version 3 Modified Released March 04, 2020 Revised July 21, 2022 โ Added the 2021, 2022, and 2023 Model Years. Revised October 13, 2022 โ Updated the United States Alpine Contact Information. GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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