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Service campaign SSPC5 MRTa

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11005709
Published by NHTSA2024-08-05
Manufacturer's numberSSPC5 MRTa
Manufacturer's date2024-07-02
Campaign id or software versionSSPC5
NHTSA componentFORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; UNKNOWN OR OTHER; ELECTRICAL SYSTEM

NHTSA's summary

SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Electrical system, Adaptive cruise control

Vehicles listed
MAZDA CX-302020, 2021
MAZDA MAZDA32019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
SSPC5 FCa2024-08-05. Service campaign. SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.
SSPC5 FC2024-08-05. Service campaign. SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.
SSPC5_Warranty2024-07-06. Service campaign. SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.
SSPC5 Repair2024-07-06. Service campaign. SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.
SSPC5 MRT2024-07-05. Service campaign. SSPC5 - SPECIAL SERVICE PROGRAM - 2019-2021 MAZDA3 AND 2020-2021 CX-30 - CONTROL UNITS REPROGRAMMING Concern 1: Mazda3 and CX-30 – Battery concern On the subject vehicles, the CCU (climate control unit) and BCM (body control module) may not go into sleep mode even after the ignition is switched OFF or may take time to go into sleep mode. An electric current may continue to flow, allowing the battery to discharge and run out if the vehicle is left unused for a certain time. Causal factor: Inappropriate control program of CCU and BCM. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules. Concern 2: Mazda3 and CX-30 - MRCC concern: On the subject vehicles, the responsiveness when driving following a preceding car using the MRCC (Mazda Radar Cruise Control) system is designed to high response. Some drivers may feel the acceleration and deceleration jerk when using MRCC somewhat uncomfortable. The product update has been incorporated into mass-production Mazda3 and CX-30 vehicles, and acceleration and deceleration has been made more natural by changing controls to be closer to human expectation. The similar update will be made on the subject vehicles produced prior to the product update under this SSP. * MRCC: Mazda Radar Cruise Control (MRCC) uses a millimeter wave radar to judge the relative speed and distance to the car ahead and automatically controls vehicle speed. Working within a set speed range, MRCC automatically adjusts and maintains a safe following distance from the car in front. Concern 3: CX-30 - Theft-Deterrent System concern On the subject vehicles, the theft-deterrent system may not recognize correctly the open/close state of power liftgate, which may allow the theft-deterrent system to activate wrongly when the liftgate is opened by pressing the power liftgate switch. Causal factor: Inappropriate control program of BCM and LFU. Update to BCM will also update the IC, DOOR_ESU_D, DOOR_ESU_P, ESU modules.