NHTSA ID Number: 11028828
Manufacturer Communication Number: MAS005001_A RU 26-04
TSB/Document Date: 2026-02-17
Summary
Certain Maserati vehicles listed in MODISCS+ are involved in a Rapid Update to install the latest software on multiple ECU modules. VEHICLES INVOLVED: (M182) Grecale MY23, MY24 and MY25
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TSB/Document ID: MAS005001_A RU 26-04
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-09
MFR Internal Campaign ID/Software Version: Rapid Update 812
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
▪
Run a loop key (Key OFF and Key ON)
▪
Make sure the car goes into ready mode
Procedure complete.
VDCM (Vehicle Dynamics Control Module) (formerly #767)
This new software modifies the behavior of the air compressor, preventing the DTC 55A100 (unable to obtain
desired ride height) set in VDCM and avoiding unwanted lowering of the vehicle.
Operating Procedure :
1.
Using MD-Evo, perform the VDCM – ECU programming update.
Software version to be installed (or newer).
Engine
F188 Target
V6
670357614
MHEV
670357615
BEV
670357652
670357654
670357655
After the upgrade, run BCM – Procedures – PROXI Alignment .
After the PROXI alignment, exclusively for BEV vehicles, please follow these steps:
•
•
•
•
•
•
•
•
•
Close the MD-Evo application and disconnect the MDVCI2
Disconnect the Battery Maintainer from the 12V battery
Perform Key OFF
Make sure the hood, trunk and all doors are properly closed.
Wait for power latch (wait until the dashboard clock is off)
NOTE: Let the car go into sleep mode for 10 minutes
Reconnect the Battery Maintainer to the 12V battery
Perform Key ON
Reconnect the MDVCI2, restart the MD-Evo application and clear the DTCs
Run a loop key (Key OFF and Key ON)
© 2026 Maserati Americas
Aftersales
www.maseratiusa.com
MAS005001_A
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 4 of 7
1.
Using MD-EVO, perform the update: ECM – ECU Programming .
The following software (or later) will be installed with this action:
MHEV
V6
2.
3.
TECHNICAL SERVICE OPERATIONS
ECM Software Update (formerly CSN #773)
Version
F188 Target
MY23 300hp
673016801
MY23 330hp
673016802
MY24 300hp
670353482
MY24 330hp
670353483
MY25 330hp
670353995
MY23 530hp
673016852
MY24 530hp
670353796
Press “ Execute ” during the pre- procedures :
Using MD-EVO, clear DTCs.
NOTE : Following the update, in very rare cases, the following message may appear on the screen.
This message does not indicate any technical problems with the car and simply suggests that an extra
urban cycle should be performed at cruising speed to facilitate spontaneous GPF regeneration.
Technically, this message is activated when the GPF is about 50% full, in a non-critical condition. In some
cases, the message may appear on pre-delivery vehicles if frequent cold engine start/stop cycles have
been performed. Again, this message is to be regarded as a technical suggestion and should in no way be
seen as a vehicle malfunction.
The reason why this warning has been implemented in this new software version is to inform the customer in
good time so that the vehicle can be kept in perfect working order. Therefore, no further action is required
by the workshop should this message appear following the update. TCM SW Update (some MY23 only) We
also ask you to inform the customer of both the new warning function and the possible need to drive an
extra-urban cycle. For this reason, any request for supplementary work under warranty concerning this issue
will be rejected.
4.
If the affected vehicle also requires a TCM software update (action “ ECM + TCM Software Updates ”), proceed
with the instructions on the next page “TCM Software Update”. Otherwise, the procedure is complete.
© 2026 Maserati Americas
Aftersales
www.maseratiusa.com
MAS005001_A
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 5 of 7
TECHNICAL SERVICE OPERATIONS
TCM Software Update (formerly CSN #773)
1. Using MD-EVO, perform the update: TCM – ECU Programming .
The following software (or later) will be installed with this action:
F188 Target
670299988
2. Clear any residual DTCs.
3.
Procedure complete.
Software Update (formerly #792)
The software update is intended to optimize the sensitivity of the PRND controls, preventing
potential issues where the desired gear may not engage without repeated button presses. The
updated software ensures a more precise and immediate response from the gear selection
system.
Operating Procedure:
1. Using MD-EVO, perform the AGSM – ECU Programming update .
The following (or later) software must be installed
F188
670358268
2. After the upgrade, run BCM – Procedures – PROXI Alignment .
3. After the PROXI alignment, exclusively for BEV vehicles, please follow these steps:
▪
Close the MD-Evo application and disconnect the MDVCI2
▪
Disconnect the Battery Maintainer from the 12V battery
▪
Perform Key OFF
▪
Make sure the hood, trunk and all doors are properly closed.
▪
Wait for power latch (wait until the dashboard clock is off)
NOTE: Let the car go into sleep mode for 10 minutes
4.
▪
Reconnect the Battery Maintainer to the 12V battery
▪
Perform Key ON
▪
Reconnect the MDVCI2, restart the MD-Evo application and clear the DTCs
▪
Run a loop key (Key OFF and Key ON)
Procedure complete.
© 2026 Maserati Americas
Aftersales
www.maseratiusa.com
MAS005001_A
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 6 of 7
TECHNICAL SERVICE OPERATIONS
Warranty Claim Information
Please complete the warranty claim as follows:
Description
Code
Rapid Update Number
812
Warranty code
23
Error code
063
Component Code
9.99.000
Operation Code
• BCM Update
8.61.035.E (0,10 h)
• RFHM Update
8.53.088.D (0,10 h)
• SLML Update
8.30.002.A (0,10 h)
• SLMR Update
8.30.001.B (0,10 h)
• VDCM Update
6.90.001.A (0.20 h)
• ECM Update
1.90.001.A (0.20 h)
• TCM Update
3.10.060.A (0.20 h)
• AGSM Update
3.02.037.A (0.20 h)
Warranty Note
Warranty claims must match the VIN-specific operations shown in the included VIN List.
Technicians must claim only the Operation Code assigned to that VIN. No additional
software operations should be claimed if they are not specified for that vehicle.
© 2026 Maserati Americas
Aftersales
www.maseratiusa.com
MAS005001_A
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 7 of 7
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