4219L – 2019MY MAZDA3 SUDDEN DECELERATION FROM FALSE BRAKE ACTIVATION
4219L – 2019MY MAZDA3 SUDDEN DECELERATION FROM FALSE BRAKE ACTIVATION
SI121674
CAMPAIGN TYPE: Recalls
DESCRIPTION
NOTE: If you suspect your MDRT Tool is bad or need an additional Tool, please contact Dealer Recall Help on MXConnect > Warranty with at least 1 VIN that could not be repaired.
**UPDATE: New Repair Procedures and Parts and Warranty Information Posted February 14, 2020**
All Vehicles are in Open status on eMDCS as of February 14, 2020.
VIN Look Up Tool Job Aid – Repair Calculator added January 21. Please see the first item below in the list
Mazda Motor Corporation has decided to conduct a Safety Recall Campaign on certain 2019 and 2020 Mazda3 vehicles within the VIN range below, affecting 35,390 U.S. and U.S. Territory vehicles.
Concern Outline:
Certain subject vehicles may unexpectedly stop while driving due to inadvertent activation of the Smart Brake Support (SBS), which is an automatic emergency braking system, increasing the risk of a rear-end crash from a following vehicle.
Incorrect programming of the SBS control software may cause the vehicle to falsely detect an obstacle in front of the vehicle while driving. Because of this, the SBS automatic emergency braking system may unexpectedly activate, along with the collision warning sound and warning message displayed on the multi-information and active driving displays, even though no collision is imminent. In certain cases, the SBS control software may automatically apply the vehicle brakes to prevent or reduce damage from a collision.
For all subject vehicles:
The software of the Vehicle Control Module (VCM) will be updated. Some vehicles will require an update to the electronic owner’s manual located in the CMU along with several pages of the paper Owner’s Manual being replaced with updated printed material and either a software update of the Instrument Cluster (IC) or replacement depending on production date.
Vehicles built from 9/25/2018-11/5/2018 (early production):
Replacement of the instrument cluster with an updated part, CMU update and paper owner’s manual update.
Vehicles built from 11/5/2018-7/30/2019:
Updating the software of the instrument cluster (IC), CMU update and paper owner’s manual update.
Vehicles built from 7/30/2019-10/23/2019:
Updating the software of the Vehicle Control Module (VCM) only.
Note: Certain operating specifications of the Smart Brake System (SBS) have been changed from July 30, 2019 production. Therefore it is mandatory that the applicable sections of the owner’s manuals (electronic & booklet) are revised with the updated operation for vehicles built from 9/25/18 up to 7/30/2019.
Owner Notification:
Mazda will notify 28,608 owners of affected vehicles by first class mail on February 14, 2020 and all vehicles will be in Open status on eMDCS. Owners will be asked to bring their vehicle to the nearest Mazda dealership for repairs.
Action Required: Dealers must continue to complete all affected in-stock inventory as quickly as possible. 762 vehicles are currently shown to be in dealer inventory or in transit that require this recall to be performed prior to retail delivery. Starting February 14, 2020 this recall will also be tracked on the Missed Recall report.
Important Safety Notice:
The National Traffic and Motor Vehicle Safety Act prohibits the delivery of any subject vehicle without performing the necessary repair for defects or failures. Failure to perform applicable recalls before delivery can result in extensive dealer fines and penalties from the Federal Government. Therefore, you must complete this recall for all affected vehicles in your inventory prior to delivery.
NOTE: If you suspect your MDRT Tool is bad or need an additional Tool, please contact Dealer Recall Help on MXConnect > Warranty with at least 1 VIN that could not be repaired.
**UPDATE: New Repair Procedures and Parts and Warranty Information Posted February 14, 2020**
All Vehicles are in Open status on eMDCS as of February 14, 2020.
VIN Look Up Tool Job Aid – Repair Calculator added January 21. Please see the first item below in the list
Mazda Motor Corporation has decided to conduct a Safety Recall Campaign on certain 2019 and 2020 Mazda3 vehicles within the VIN range below, affecting 35,390 U.S. and U.S. Territory vehicles.
Concern Outline:
Certain subject vehicles may unexpectedly stop while driving due to inadvertent activation of the Smart Brake Support (SBS), which is an automatic emergency braking system, increasing the risk of a rear-end crash from a following vehicle.
Incorrect programming of the SBS control software may cause the vehicle to falsely detect an obstacle in front of the vehicle while driving. Because of this, the SBS automatic emergency braking system may unexpectedly activate, along with the collision warning sound and warning message displayed on the multi-information and active driving displays, even though no collision is imminent. In certain cases, the SBS control software may automatically apply the vehicle brakes to prevent or reduce damage from a collision.
For all subject vehicles:
The software of the Vehicle Control Module (VCM) will be updated. Some vehicles will require an update to the electronic owner’s manual located in the CMU along with several pages of the paper Owner’s Manual being replaced with updated printed material and either a software update of the Instrument Cluster (IC) or replacement depending on production date.
Vehicles built from 9/25/2018-11/5/2018 (early production):
Replacement of the instrument cluster with an updated part, CMU update and paper owner’s manual update.
Vehicles built from 11/5/2018-7/30/2019:
Updating the software of the instrument cluster (IC), CMU update and paper owner’s manual update.
Vehicles built from 7/30/2019-10/23/2019:
Updating the software of the Vehicle Control Module (VCM) only.
Note: Certain operating specifications of the Smart Brake System (SBS) have been changed from July 30, 2019 production. Therefore it is mandatory that the applicable sections of the owner’s manuals (electronic & booklet) are revised with the updated operation for vehicles built from 9/25/18 up to 7/30/2019.
Owner Notification:
Mazda will notify 28,608 owners of affected vehicles by first class mail on February 14, 2020 and all vehicles will be in Open status on eMDCS. Owners will be asked to bring their vehicle to the nearest Mazda dealership for repairs.
Action Required: Dealers must continue to complete all affected in-stock inventory as quickly as possible. 762 vehicles are currently shown to be in dealer inventory or in transit that require this recall to be performed prior to retail delivery. Starting February 14, 2020 this recall will also be tracked on the Missed Recall report.
Important Safety Notice:
The National Traffic and Motor Vehicle Safety Act prohibits the delivery of any subject vehicle without performing the necessary repair for defects or failures. Failure to perform applicable recalls before delivery can result in extensive dealer fines and penalties from the Federal Government. Therefore, you must complete this recall for all affected vehicles in your inventory prior to delivery.