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PCM/TCM Software Updates May Address Shifting Problems on Dodge Magnum

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 121,449 (20,000–210,000)
Drive Train affected: 2WD
4 model years affected: 2005, 2006, 2007, 2008
34 people reported this problem
Comments
Viewing 1 - 17 of 17 comments
This will happen from time to time but it occures more often in cold weather...takes a second too long to shift. usualy goingf from 1st. to 2nd.
automatic transmission. rpms climb way high before shifting into second I had to let off of the throttle rpms dropped then tranny shifted. Weather was cold. Later that day it seemed to drive across town fine picked up my son turn car back on and immediately died like I turned the key back.this happened twice so the third time I gave it generous throttle it then idled fine and shifted home fine.I'm on earlier I also have the car die on me while I was driving while adjusting the foot pedels using switch on driver seat.
I did about 5 minutes of research and found there are a lot of software updates available for my magnum that are supposed to solve a variety of electrical problems from flashing dash lights to irregular transmission shifting.
for approx. 3 months: very hard shifting, occasionally stays in 2nd gear and won't shift; so I turn car off wait a minute, start and it will shift but very hard. also, tranny has trouble determining which gear to be in and switches rapidly between gears.
2 weeks ago: check engine light came on with error Code P0700, so I had motor/tranny mounts replaced.
Today, took into dodge dealer to have software updated.
Drove well for 2 minutes (just long enough to get on freeway), then all same problems came back, including check engine light.
Dealer has no clue as to the problem and I'm running out of money for them to continue trying to diagnose the issue.
Shifting issues occur when slowing down more often then speeding up, shutters when down shifting. Seem like it doesn't know when to shift at the right time, mainly when down shifting
Shifted extremely hard while turning a corner going about 20 mph. After that, started shifting hard in 2nd and 4th gear. Afterwards when backing out from somewhere, i had to step on it to make it go. It didnt want to go when put in reverse.. Had it checked out, they said something had broke in the tranny. Got a new tranny and had them put it in.. Never once did it send a code.
first shift after changing driving style is very hard, ok thereafter. example, driving on high speed road and then get off at exit - first upshift will be very hard. other example, driving in stop go traffic, then want to accelerate at on ramp - first shift is hard. all the rest of the time, transmission is as smooth as can be.
seens like its shifting early so around town i drive in 3rd and on freeway normal Drive are there any updates for this issue ? thank you
My 2005 magnum SXT just started shifting very hard from first to second . When it downshifts from second to first it's not nearly as abrupt. Any clues? It's a high mileage car at 210,000 but has never been driven hard.