NHTSA ID Number: 10114482
Manufacturer Communication Number: PIC5910C
Summary
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B124B sym 04 in the HMI module. Technician should check the USB port operations if no issue found it should be considered a false code and no components should be replaced. If the USB port is inoperative technician should follow published Service Information diagnosis for Auxiliary Audio Input Malfunction.
20 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | LACROSSE | 2014-2015 |
| BUICK | REGAL | 2014-2015 |
| CADILLAC | ATS | 2015 |
| CADILLAC | CTS | 2015 |
| CADILLAC | ELR | 2015 |
| CADILLAC | SRX | 2015 |
| CADILLAC | XTS | 2015 |
| CHEVROLET | COLORADO | 2015 |
| CHEVROLET | CORVETTE | 2015 |
| CHEVROLET | IMPALA | 2015 |
| CHEVROLET | SILVERADO 2500 | 2015 |
| CHEVROLET | SUBURBAN | 2015 |
| CHEVROLET | TAHOE | 2015 |
| GMC | CANYON | 2015 |
| GMC | SIERRA 2500 | 2015 |
| GMC | SIERRA DENALI | 2015 |
| GMC | YUKON | 2015 |
| GMC | YUKON XL | 2015 |
Condition/Concern
The vehicles above set a false code B124B sym04 in the HMI module.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910C
Date: Apr-2015
NHTSA ID Number: 10114416
Manufacturer Communication Number: PIC5910B
Summary
This Preliminary Information communication provides information to the technician about vehicles that may have Diagnostic Trouble Code B124B sym 04 set in the Human Machine Interface. When working on the 2014 model year Lacrosse the Human Machine Interface can be reprogrammed using Service Programming System. If working on a 2015 model year Lacrosse, Colorado, or Canyon engineering is currently working on new calibrations to correct this concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910B
Date: Feb-2015
NHTSA ID Number: 10114371
Manufacturer Communication Number: PIC5910A
Summary
This Preliminary Information communication provides information to the technician about vehicles that may have a Diagnostic Trouble Code B124B sym 04 stored in the Human Machine Interface module. For model year 2014 the Human Machine Interface should be reprogrammed with the latest calibration from TIS2Web. For model year 2015 engineering is currently working on new calibrations to correct this concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910A
Date: Jan-2015
NHTSA ID Number: 10094943
Manufacturer Communication Number: PIC5910A
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A DIAGNOSTIC TROUBLE CODE B124B SYM 04 STORED IN THE HUMAN MACHINE INTERFACE MODULE. FOR MODEL YEAR 2014 THE HUMAN MACHINE INTERFACE SHOULD BE REPROGRAMMED WITH THE LATEST CALIBRATION FROM TIS2WEB. FOR MODEL YEAR 2015 ENGINEERING IS CURRENTLY WORKING ON NEW CALIBRATIONS TO CORRECT THIS CONCERN.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910A
Date: Jan-2015
NHTSA ID Number: 10113232
Manufacturer Communication Number: PIC5910
Summary
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B124B sym04 may be found in the HMI module with no other concerns observed. Technician will reprogram the Human Machine Interface module with the latest calibrations in TIS2Web.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910
Date: Sep-2013
NHTSA ID Number: 10064024
Manufacturer Communication Number: PIC5910
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC5910
Date: September, 2013
MC-10064024-2273.pdf 219.701KB
- [Package Offer]: 2 Pack USB 2.0 Flash Drive 32GB Available in 2 different colors - Black and Blue. The different colors can help you to store different content.
- [Plug and Play]: No need to install any software, Just plug in and use it. The metal clip rotates 360° round the ABS plastic body which. The capless design can avoid lossing of cap, and providing efficient protection to the USB port.
- [Compatibilty and Interface]: Supports Windows 7 / 8 / 10 / Vista / XP / 2000 / ME / NT Linux and Mac OS. Compatible with USB 2.0 and below. High speed USB 2.0, LED Indicator - Transfer status at a glance.
- [Suitable for All Uses and Data]: Suitable for storing digital data for school, business or daily usage. Apply to data storage of music, photos, movies, software, and other files.
- [Warranty Policy]: 12-month warranty, our products are of good quality and we promise that any problem about the product within one year since you buy, it will be guaranteed for free.
- 【16GB Flash Drive】USB flash drives with 16GB capacity, meet your needs of daily use on work, school, home and travelling for photos, music, videos, files storage and transfer. IMEASON thumb drives can be used to store different files, easy to data backup.
- 【Metal Swivel Cap Design】USB thumb drive is metal swivel cover provides extra protection for the usb thumbdrive connector, no usb drive cap to lose; keychain design makes it easier to carry without worrying lose it.
- 【Wide Compatibility】USB drive supports Windows 7/8/10/11 / Vista / XP / Unix / 2000 / ME / NT Linux and Mac OS, also Supports USB 2.0 and 1.1 ports. USB Stick support TV, desktop, notebook computer, car, audio and other device. The USB Memory Stick is your great data storage and transfer companion with traveling and working.
- 【Easy to use】usb memory stick is plug and play without any software installation. Just simply plug the Flashdrive into the port of your USB-compatible devices such as computer, laptop to start data storage or transmission.
- 【What You Get】16 GB USB Flash Drive Thumb Drive, The default format of the usb storage flash drive is FAT32.
- High-speed USB 3.0 performance of up to 150MB/s(1) [(1) Write to drive up to 15x faster than standard USB 2.0 drives (4MB/s); varies by drive capacity. Up to 150MB/s read speed. USB 3.0 port required. Based on internal testing; performance may be lower depending on host device, usage conditions, and other factors; 1MB=1,000,000 bytes]
- Transfer a full-length movie in less than 30 seconds(2) [(2) Based on 1.2GB MPEG-4 video transfer with USB 3.0 host device. Results may vary based on host device, file attributes and other factors]
- Transfer to drive up to 15 times faster than standard USB 2.0 drives(1)
- Sleek, durable metal casing
- Easy-to-use password protection for your private files(3) [(3)Password protection uses 128-bit AES encryption and is supported by Windows 7, Windows 8, Windows 10, and Mac OS X v10.9 plus; Software download required for Mac, visit the SanDisk SecureAccess support page]
- 10 Pack USB Sticks: 10 pieces of USB flash drives are fit for a variety of scenarios. Whether the flash drives USB are used as school supplies for high school students to backup data storaged in USB jump drives or music USB flash drive for car, zip drive can meet the basic storage needs. USB drive pack of 10 has a higher cost performance. USB flash drive pack of 10 is suitable for ordinary users with appropriate needs, but also for special groups such as companies, schools or other organizations that need a large number of U disks. In short, thumb drives can meet the needs of different customers.
- Swivel Design: With the 360° swivel design, all the ports of the thumb drives 10 pack can be hidden inside the metal casing. When needed, simply swivel the casing gently and the ports will automatically expose, making it convenient for you to insert and remove. This design is not only fashionable and beautiful but also more user-friendly, whether you'd like your flash drive for photos, flash drive for video storage, or memory sticks for computers. In addition, the swivel design can effectively protect the interface from damage and pollution, increasing the service life of the flash USB drive.
- Portability: The small hole on the thumbdrive USB is designed for lanyards, which is convenient to carry. Besides, the USB flash drive keychain can also be tied through the small hole to prevent loss. This design is very thoughtful and reflects the humanized design concept of the memorias USB flash drive.
- Plug and Play: You can use the computer storage flash drive immediately for data storage or backup without any additional installation after inserting it into the computer. This plug and play feature makes the laptop storage drive a very convenient external ssd. You can copy the required data files to the external drive at any time without worrying about computer system compatibility issues. In addition, the design of the external flash drive enables it to be quickly recognized by the system after being inserted into the computer. (NOTE: Please check if your device has a USB-A port before purchasing. If not, a USB-C hub is needed.)
- FAT32 format: The default system format for 8GB flash drive is FAT32. FAT32 USB flash drive is widely applicable, such as in televisions, DVD players, vehicles, printers, embroidery machines, etc. Be patient if you have problems with system recognition. It may take some time for initial recognition, but it will happen.
- USB-C 2-in-1 storage OTG: The Lexar JumpDrive Dual Drive D40E features USB Type-A and Type-C connectors in a slim, portable form factor for easy device compatibility
- Transfer speeds up to 100MB/s: Based on internal testing, performance may vary depending upon the host device, interface, and usage conditions. 1MB=1,000,000 bytes
- Plug and Play: Widely compatible with USB Type-C smartphones, tablets, laptops, Macs, and traditional Type-A devices, no software installation required. The 360° swivel design allows for easy switching between connectors without the hassle of losing a cap
- Durable & Compact: The Lexar D40E USB memory stick features a metal enclosure, withstands temperatures from 0° to 50° C (32°F to 122°F), and is lightweight at 26g with dimensions of 70.4 x 16.9 x 11.7mm
- Security & Warranty: Securely protects files using an advanced security software solution with 256-bit AES encryption. Backed by a Lexar 3-year limited warranty
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API
SEOCONTENT-START
Bulletin No.: PIC5910C
Date: Apr-2015
| Subject: | False Code B124B sym04 Set Current in HMI Module with No Other Concerns Observed |
| Models: | 2014-2015 Buick LaCrosse, Regal |
| 2015 Cadillac ATS, CTS, Escalade, SRX, XTS |
|
| 2015 Chevrolet Colorado, Corvette, Impala, Silverado, Suburban, Tahoe |
|
| 2015 GMC Canyon, Sierra, Yukon |
This PI was superseded to update Model Years and Recommendation/Instructions. Please discard PIC5910B.
Condition/Concern
During diagnosis of any concern, technicians may find that the vehicles above set a false code B124B sym04 in the HMI module.
Recommendation/Instructions
If no concerns are noted when using the USB source and there are no USB-related customer complaints, ignore DTC B124B sym04 as it should be considered a false code and no components should be replaced for this false code. If the USB is inoperative, follow diagnosis for Auxiliary Audio Input Malfunction.
SEOCONTENT-END
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