A word to the wise, I would HIGHLY suggest anyone what owns even a newer (2021+) Tahoe/Suburban/Yukon, Sierra, Escalade to purchase a spare FCPM and keep it in the truck. Even if yours has been replaced under the recall or due to a prior failure or even if you have the latest part #13554821 it may save you from being stranded as well as a lot of out of pocket expense and delays. From the quick research I did, it appears both the Gasoline and Diesel 2021+ trucks and SUV's use this same module part number or at least this later superceded part number.
Not sure what the real going rate for the latest version #13554821 FPCM is, but I found a new one online at a GM dealer for $51.92, with shipping and tax it was in my hands for under $65. While searching I was finding many dealer showed they did not have this FPCM in stock. I wanted to get one of these modules in my hands ASAP as I am a road warrior and typically make regular 2-6 hour trips and wanted a spare module on hand in the truck.
There is a LOT of information/mis-information running around on the web that indicates that this module needs to be programmed for the 2021+ trucks and SUV's. Well I just did a test, I connected up the new, replacement module and when I unlocked the trunk the fuel pump powered up without issue. Truck started and ran fine. Allowed truck to run about 10 minutes, then turned truck off and connected original module back up and truck started up and ran fine! I DID NOT disconnect the battery for this test as I wanted to emulate what I would do if stuck on the side of the road and wanted to get the truck running ASAP. I think part of the confustion about programming is with the 2019/2020 and earlier trucks with the FCPM that has the connector that plugs into the side, rather than then the end of the module did require programming. I found this #13554821 DID NOT require any programming on my 2024 Yukon.
I did find something online that indicated you could power up the vehcile (Service Mode) but not start the engine, wait 2 minutes, turn off for 2 minutes prior to staring the engine was the procedure, but I did not do this because I heard the fuel pump power up upon unlocking the truck.
On my Yukon the module is on the frame rail under the driver side rear door. I have heard on some models this module may be in front/on top of the spare tire???
I put the replacement module back in the box with some wire ties so I can temporarily hang the module until I have the time and place remove the bracket from the frame and swap the module propertly. I put the box with the new module under the rear cargo floor for future needs, either for myself or friends/family or possibly a stranded fellow truck owner on the side of the road.
Given these module are 3 phase inverters, they will not last forever. Just look at the HVAC industry and all the failures of the variable speed fan controllers!!!! While GM may even upgrade the #13554821 module at some point for greater reliability, I would rather have a good, funtional module in my truck for when this module leaves me stranded on the side of the road!! Usually when I am proactive and have spare parts that often fail, I often do not need the spare!!!! If the FCPM ever fails while I have the wife in the car and tell her to wait 5 minutes while I pop the rear tailgate and crawl under the truck this is well worth the small investment. I might even be a hero for an hour!
For the $65 I spent and how easy it is to swap the connector to a spare module, this is a real bargin as well as a good piece of mind for unintrupted travel.
Not sure what the real going rate for the latest version #13554821 FPCM is, but I found a new one online at a GM dealer for $51.92, with shipping and tax it was in my hands for under $65. While searching I was finding many dealer showed they did not have this FPCM in stock. I wanted to get one of these modules in my hands ASAP as I am a road warrior and typically make regular 2-6 hour trips and wanted a spare module on hand in the truck.
There is a LOT of information/mis-information running around on the web that indicates that this module needs to be programmed for the 2021+ trucks and SUV's. Well I just did a test, I connected up the new, replacement module and when I unlocked the trunk the fuel pump powered up without issue. Truck started and ran fine. Allowed truck to run about 10 minutes, then turned truck off and connected original module back up and truck started up and ran fine! I DID NOT disconnect the battery for this test as I wanted to emulate what I would do if stuck on the side of the road and wanted to get the truck running ASAP. I think part of the confustion about programming is with the 2019/2020 and earlier trucks with the FCPM that has the connector that plugs into the side, rather than then the end of the module did require programming. I found this #13554821 DID NOT require any programming on my 2024 Yukon.
I did find something online that indicated you could power up the vehcile (Service Mode) but not start the engine, wait 2 minutes, turn off for 2 minutes prior to staring the engine was the procedure, but I did not do this because I heard the fuel pump power up upon unlocking the truck.
On my Yukon the module is on the frame rail under the driver side rear door. I have heard on some models this module may be in front/on top of the spare tire???
I put the replacement module back in the box with some wire ties so I can temporarily hang the module until I have the time and place remove the bracket from the frame and swap the module propertly. I put the box with the new module under the rear cargo floor for future needs, either for myself or friends/family or possibly a stranded fellow truck owner on the side of the road.
Given these module are 3 phase inverters, they will not last forever. Just look at the HVAC industry and all the failures of the variable speed fan controllers!!!! While GM may even upgrade the #13554821 module at some point for greater reliability, I would rather have a good, funtional module in my truck for when this module leaves me stranded on the side of the road!! Usually when I am proactive and have spare parts that often fail, I often do not need the spare!!!! If the FCPM ever fails while I have the wife in the car and tell her to wait 5 minutes while I pop the rear tailgate and crawl under the truck this is well worth the small investment. I might even be a hero for an hour!
For the $65 I spent and how easy it is to swap the connector to a spare module, this is a real bargin as well as a good piece of mind for unintrupted travel.
Last edited:
