The defect
General Motors is recalling certain 2019-2020 Chevrolet 4500HD, 5500HD, and 6500HD Medium Duty trucks. If the vehicle's body control module (BCM) loses communication with the vehicle's electronic brake control module (EBCM), the EBCM software programming may not illuminate the vehicle's ABS malfunction indicator light (MIL). As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) Number 105, "Hydraulic and Electric Brake Systems."
The risk
If a driver is unaware that the ABS system is malfunctioning, there may be an increased risk of a crash.
The remedy
GM will notify owners, and dealers will update the software calibration for the body control module (BCM). The recall began June 29, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202305070.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| International Motors Chevy 4500HD | 2019, 2020 |
| International Motors Chevy 5500HD | 2019, 2020 |
| International Motors Chevy 6500HD | 2019, 2020 |
Components: SERVICE BRAKES, HYDRAULIC | SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT | SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE | ELECTRICAL SYSTEM:SOFTWARE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| International Motors Chevy 4500HD | 2019 | 0 | 2 |
| International Motors Chevy 4500HD | 2020 | 0 | 2 |
| International Motors Chevy 5500HD | 2019 | 0 | 2 |
| International Motors Chevy 5500HD | 2020 | 0 | 2 |
| International Motors Chevy 6500HD | 2019 | 0 | 1 |
| International Motors Chevy 6500HD | 2020 | 0 | 1 |
Other electrical system recalls in 2020
105 of the 782 recall campaigns reported to NHTSA in 2020 concerned the electrical system; General Motors LLC filed 272 campaigns in all.
| 20V812000 28 Dec 2020 | Marion Body Works Inc. |
| 20V805000 21 Dec 2020 | SVI Trucks |
| 20V801000 18 Dec 2020 | Keystone RV Company |
| 20V790000 17 Dec 2020 | General Motors, LLC |
| 20V798000 17 Dec 2020 | Honda (American Honda Motor Co.) |
| 20V779000 15 Dec 2020 | Rosenbauer America |
| 20V783000 15 Dec 2020 | Halcore Group, Inc. |
| 20V781000 15 Dec 2020 | Ducati North America |
NHTSA recalls (public domain) · all recalls of 2020