Car Problem Reports

Chrysler 300 PCM/TCM Software Updates Will Address Shifting Problems

Chrysler 300 Problem
16 Reports
Me Too

Model Years Affected: 2005, 2006, 2012, 2014

Drive Trains Affected: 2WD, 4WD

Average Mileage: 55,878 mi (8,000 mi - 177,728 mi)


If you experience rough shift and/or shuddering during gear shifting, software updates to the powertrain control and transmission control modules (PCM and TCM) are available which may address these problems. On higher mileage vehicles, a mechanical failure may exhibit similar symptoms. Proper diagnoses should be performed before any repairs or software upgrades are attempted.

  • dmg, , 2WD, 72,000 mi

    The drive shift would not change to the next gear. Car would not go over 20 mph and check engine light along with
    ABS/BAP light would not go off. Dealership updated software last year and still the PCM went out this week. Dealership changed PCM for 490.00. I think this should be under factory warranty.

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  • Visitor, , 2WD, 62,000 mi

    the pcm tcm problem repaired by dealer cost 100 dollars ded. because covered under factory warranty up to 75000 miles

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  • Visitor, , 8,000 mi

    Software updates did not repair the problem!!!

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  • pblaszcz, , 2WD, 49,500 mi

    Shudder or vibration around 40-50 mph. This car shifts into overdrive before 40 mph. I believe that it should shift into OD above 45. Will go after the PCM/TCM software update. 3.5L V6, auto.
    Trans shop diag it as torque converter clutch. est $890.00. Dealer stepped up and diag it as trans. Replaced it and reprogrammed PCM/TCM and did a relearn all for free. All is well. Chrysler sales managers can get stuff done.

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  • Visitor, , 9,298 mi

    My 300 AWD betan "surging" when arriving at full stop... upon stopping, the transmission would "surge" by taking a "push, or leap" then coming to a stop. Only doing so when cold at the beginning of the day or when sitting for a long time. Dealer "flashed" the computer and the problem was solved... however, before the "flash" and the "surging", this transmission was the smoothest shifting I have ever experienced... had to look at the tach to see when it shifted. Now the transmission does not "surge" when cold, but shifts like a truck. Warming up stops this phenomenon.
    I now have 10, 290 miles, and the "surge" is back, only it is now when warm, and occurs periodically. Maddening to say the least.

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  • Visitor, , 9,500 mi

    They say they fixed it but i will see on my drive to phoenix next week

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  • Visitor, , 2WD, 177,728 mi

    the car feel like it running over some speed brakes then it shift hard.

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  • Visitor, , 2WD, 99,800 mi

    Transmission shudders when downshifting as coming to a stop.

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  • Visitor, , 2WD, 60,000 mi

    The car shakes/shutters around 40mph. After a while the car would not shift after 3rd gear. My lights started coming on and off on their own as well as the AC did not blow cold air either. I let the car sit for a while and had to call AAA to jump start the vehicle. The AAA driver advised needed new battery. Once he put the new battery in the car ran fine for a while and the problems all cam eback. Brought it to a machanic and they think its the computer.

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  • enyduke, , 4WD, 39,000 mi

    Vehicle slow and sluggish when accelerating from stop, red ttcking warning light blinking

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