PaulGo

This fix only works on 2010-2012 Ford Fusion Hybrid, 2010-2012 Lincoln MKZ Hybrid, & 2010-2012 Mercury Milan Hybrid. This was caused by Ford not programming these model year cars correctly. It was fixed in the later model year cars.

You are correct. The CSP will take care of the problem without the age fix.

I did not undo the age fix. The dealer installed 22G04 on both cars on top of the age fix.

After a week with the dealer installed CSP #22G04 the gas mileage is slightly better than with just the age fix. Applying the age fix has no impact on the dealer applying the CSP.

On Wednesday, I had my first 2010 Mercury Milan with the CSP. To my surprise, they also did the driver's side airbag recall. So far, the results are excellent, although it's hard to tell the difference between this CSP and the age fix from this thread. Today I had my other Mercury Milan done but no driver's side airbag replacement (on order maybe next week). Both cars have about 55 thousand miles, and the average mileage was slightly over 38mpg during the summer months with the age fix.

I called my dealer and gave them the CSP #22G04. They verified it applies to my two 2010 Mercury Milan Hybrids, and I set up an appointment for them to do the work. The age fix I did two years ago works very well, and I hope I get at least as good hybrid performance after I visit the dealership. FusionDiffusion has posted a comment on a topic, 2010 - 2012 Fusion Hybrid High Voltage Battery TSB at 10 Years of Age FYI there is a new customer satisfaction program for this that came out today, the program number is 22G04. You can now have this BECM/PCM update performed free of charge through Sept 30, 2023. Letters will be sent out in a couple weeks. You are eligible for a refund if you paid to have this performed at a dealer previously, and can provide documentation. I think every owner will want this done. Title: Application Performance Upgrade 22G04 Certain 2010 – 2012 Model Year Fusion / MKZ / Milan Hybrid Vehicles Hybrid Battery Reduced Electric Vehicle Operation BECM and PCM Software Update https://fordfusionhybridforum.com/topic/13380-2010-2012-fusion-hybrid-high-voltage-battery-tsb-at-10-years-of-age/page/3/?tab=comments#comment-117299

Thank you for coming up with the "fix". Before I found your fix, I was getting the run around from Ford denying there was a problem even though I have brought my car into a Ford dealership and according to their diagnostics everything was according to spec. When Ford finally realized and offered their solution, they should have provided it at no cost.

I did the fix on my two vehicles about 18 months ago. During the summer I get about 38mpg and less in the winter months which is what I was getting when the original programming was working. For the time before I discovered the fix my mileage was in the low 30s.

The procedure only works for 2010 to to 2012 Ford hybrids. These cars were not properly programmed to maintain the hybrid functionality after nine years.

In cold weather when my two cars is warming up it will go to Full charge, but when driving it usually stays in the middle. In warm weather they goes into the Hybrid mode quickly. In the warm weather I average about 38mpg as a mixture and highway and local driving.

About 19 months for me on my two 2010 Mercury Milan Hybrids since I applied your fix. Both cars are working fine with no issues.

With all the problems owners have been having Ford should offer the fix for free. For man owners in not only a gas consumption issue bet a safety issue.

They don't sell the transmission but they sell the patented technology to the auto manufacturer. The auto manufacture will then use the technology in the transmission the build specifically for the cars they produce.

Unique devices can and should have patents. This applies to electronics, cars and many other devices. https://patents.google.com/patent/WO2016082776A1/en Antonov As of autumn 2005, the Antonov Automotive Technology BV Plc company has sued Toyota, the Lexus brand mother company, over alleged patent infringement relating to key components in the RX 400h's drivetrain and the Toyota Prius hybrid compact car. The case has been pending in secret since April 2005, but settlement negotiations did not bring a mutually acceptable result. Antonov eventually took legal recourse in the German court system, where decisions are usually made relatively swiftly. The patent holder seeks to impose a levy on each vehicle sold, which could make the hybrid SUV less competitive. Toyota fought back by seeking to officially invalidate Antonov's relevant patents. The court motion in Microsoft Word document format can be read here.[36] On 1 September 2006 Antonov announced that the Federal Patent Court in Munich has not upheld the validity of the German part of Antonov's patent (EP0414782) against Toyota. A few days later, a court in Düsseldorf had ruled that the Toyota Prius driveline and the Lexus RX 400h driveline do not breach the Antonov hybrid CVT patent.[37] Ford Ford Motor Company independently developed a system with key technologies similar to Toyota's HSD technology in 2004. As a result, Ford licensed 21 patents from Toyota in exchange for patents relating to emissions technology.[38] Paice Paice LLC received a patent for an improved hybrid vehicle with a controllable torque transfer unit (US patent 5343970, Severinsky; Alex J., "Hybrid electric vehicle", issued 1994-09-06) and has additional patents related to hybrid vehicles. In 2010 Toyota agreed to license Paice's patents; terms of the settlement were not disclosed.[39] In the settlement "The parties agree that, although certain Toyota vehicles have been found to be equivalent to a Paice patent, Toyota invented, designed and developed the Prius and Toyota’s hybrid technology independent of any inventions of Dr. Severinsky and Paice as part of Toyota’s long history of innovation".[40] Paice earlier entered into an agreement with Ford for the license of Paice's patent.[41] https://en.wikipedia.org/wiki/Hybrid_Synergy_Drive#Patent_issues

All my visits to my Ford dealership were last year before I applied Allen"s fix. I applied Allen's fix about October of 2019.