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
- 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]
- [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.
- What You Get - 2 pack 64GB genuine USB 2.0 flash drives, 12-month warranty and lifetime friendly customer service
- Great for All Ages and Purposes – the thumb drives are suitable for storing digital data for school, business or daily usage. Apply to data storage of music, photos, movies and other files
- Easy to Use - Plug and play USB memory stick, no need to install any software. Support Windows 7 / 8 / 10 / Vista / XP / Unix / 2000 / ME / NT Linux and Mac OS, compatible with USB 2.0 and 1.1 ports
- Convenient Design - 360°metal swivel cap with matt surface and ring designed zip drive can protect USB connector, avoid to leave your fingerprint and easily attach to your key chain to avoid from losing and for easy carrying
- Brand Yourself - Brand the flash drive with your company's name and provide company's overview, policies, etc. to the newly joined employees or your customers
- [Package Offer]: 1 Pack USB Flash Drive 8GB Available in black.
- [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.
Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API
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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