Downshifting when slowing down? - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 15 (permalink) Old 09-30-2007, 04:36 PM Thread Starter
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Downshifting when slowing down?

Well the past few days the commander started downshifting really hard when comming to a stop at stop signs and lights. When i first bought the truck a month ago it never did it at all an im sitting at roughly 1,600 miles. I searched on the forum and it seems that my truck is not the only one thats doing it. I never got the real answer that i was looking for in the other Threads so i figured ill just post and ask the question here. Has anyone brought their commander into the dealer and actually had them fix this problem or is it just something that i have to live with. I want to bring it in to the dealer but am afraid that they are just going to give it back to me and say that they cant pin point the problem that i am having or that its supposed to do that. It seems everytime i go to any dealer those are the answers i get. Thanks for the input.




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post #2 of 15 (permalink) Old 10-01-2007, 01:26 AM
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My '06 4.7L doesn't do this. It's very smooth when stopping. What is irritating is the downshifting when coming down a hill with cruise control engaged. As soon as the vehicle gets a little bit above the set speed in the coasting mode, it downshifts abruptly.
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post #3 of 15 (permalink) Old 10-01-2007, 11:12 AM Thread Starter
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Will this hurt the vehicle in any way? If so i want to get it looked at soon.




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post #4 of 15 (permalink) Old 10-01-2007, 11:28 AM
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Unhook your negative battery terminal for 1 minute, reconnect, and see if it still does it. My bet is that the adaptives have trained themselves to your driving style. Also, I don't think there is anything for the dealer to "fix" unless it is downshifting so hard it is throwing you forward.
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post #5 of 15 (permalink) Old 10-01-2007, 08:47 PM Thread Starter
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I didn't think there was really anything that the dealer could do until something actually breaks. Hopefully it never comes to that. But everyonce and a while when it does it, it makes a clunking noise. Who knows ill just have to wait it out and see if it gets worse.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #6 of 15 (permalink) Old 10-01-2007, 09:18 PM
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I'd still suggest resetting the adaptives.
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post #7 of 15 (permalink) Old 10-02-2007, 10:52 AM Thread Starter
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Can you explain to me exactly what the adaptives is? Ill see if i can do it today and then let you guys know if it stops downshifting like that.




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post #8 of 15 (permalink) Old 10-02-2007, 11:14 AM
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adaptives

Quote:
Originally Posted by RedCommander
Unhook your negative battery terminal for 1 minute, reconnect, and see if it still does it. My bet is that the adaptives have trained themselves to your driving style. Also, I don't think there is anything for the dealer to "fix" unless it is downshifting so hard it is throwing you forward.
I was always under the impression that the "adaptives" of the vehicle are forever adapting. I didn't think they remained static once it adopted your style of driving ... please correct me if I'm wrong.
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post #9 of 15 (permalink) Old 10-02-2007, 11:51 AM
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They do keep adapting, but if you pull the battery, they reset themselves to factory. So, if the computer has "learned" your way of driving and you don't like it, you can reset them.

What I'm getting at is that if 07 just started having this "problem" it could be because of the computer learning. If he resets it and it still happens then that is not the case. But, it's easy enough to rule out.
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post #10 of 15 (permalink) Old 10-04-2007, 08:25 PM
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I would take it in anyway, at least you'll have a record of the problem if something goes wrong shortly after the warranty is out.
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