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Sedans Buick LaCrosse Buick LaCrosse Transmission Problems
16 messages, Last post on Nov 15, 2009 at 3:43 PM
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The transmission in my 05 LaCrosse (CXS/3.6l engine, 25,000 miles)has just started to exhibit hard shifts from 1st to 2nd and from 2nd to 3rd gears in city traffic. Am getting a pronounced thud-like sound as it upshifts. No problems with downshifts, however. Operators Manual does not provide guidance on how to check automatic transmission fluid level. There is no obvious sign of trannie fluid on the garage floor. Will take the car in to the dealer first thing tomorrow. Appreciate any advice you may wish to offer.
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Replying to: gerryc (Jul 25, 2007 5:08 pm) I have a LaCrosse identical to the car you described and experienced precisely the same problem at about 24,500 miles on the odometer. Took the vehicle to the dealer. They had no records of similar problems on LaCrosse models, but mentioned something similar on 2004 Regal and Century models. They kept the car overnight and reportedly replaced some sort of clutch mechanism on the vehicle. This took place about 3 weeks ago and just tonight the identical problem has reoccured. I'm taking the car back to the dealer tomorrow. Ever since the car was new, low gear/low speed city traffic shifts were always jerky...have never experienced anything like this on numerous cars owned in the past. Mentioned it to the dealer at that time and, of course, was told it was normal. I believe there is some sort of systemic transmission problem with the vehicle which is becoming more serious as miles accumulate. Have you taken your vehicle to the dealership since posting your message?
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Replying to: richard60 (Aug 14, 2007 4:43 pm) I did take it in to the dealer. There was no recurrence either as I drove it to the dealer or during their road test. Service advisor suggested it may have been a balky solenoid in the trannie but claimed the hard shifts don't do any harm to the transmission. At this point, ifthis happens again, I will just park the car, turn it off and then turn it on again in the expectation that the problem will go away just as it did the day I took it into the dealer. I suspect this may be a sporadic software klitch which can be overcome by re-initializing the electronics that control the transmission. I'd be interested to learn if you are able to clear the problem as well by stopping and restarting the engine in your Buick. |
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Replying to: gerryc (Aug 14, 2007 5:40 pm)
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Replying to: richard60 (Aug 14, 2007 5:50 pm)
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Replying to: rick151 (Mar 25, 2008 1:05 pm) |
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I have read were there those ou there experiencing transmission problems with Buick. I purchased a new 2005 Buick Lacrosse ledftover in March of 2006 so mt car just celbrated it's second birthday of ownership! Unfortunately I am also about to have the dealership install the fourth (4) transmission so don't believe for a minute that the transmissions are NOT a problem with the Lacrosse's at least. I began to have minor slips & a couple hard knocks similar to those described here in Edmunds at 25,000 miles, pulled in to a gas station to fill up, turned the car off, got gas & got back in, started the car & no forward gears! believe me the same thing will happen at 50,000 miles & now at least for me again at 76,000 & when the transmission goes there are very few warnings, no check engine lights, no information from the little computer, just a hard shift & nothing. Buick has stepped up to the plate and replaced the second with the third at no charge (pretty big of them) becasue the 36,000 mile warranty had expired & it is now in the shop awaiting the fourth transimission! Consider lemon law action as soon as possible if it makes sense in your state, I can't even let my wife drive the car any more because of reliability issues & I thought I bought the car for reliability! Should have kept my 1998 Chevy astro van with 270,000 miles on it! Signed, GM Family Member
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Replying to: miles9 (Apr 09, 2008 1:12 pm) |
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This sounds odd. I haven't seen it mentioned before. The transmission is the THM65E I assume. Those are used in the Chevy and other cars with few problems. Now if you were talking Accords that might be different about repetitive failures. I have to sympathize with the person on their 4th transmission! 
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Replying to: imidazol97 (Apr 09, 2008 6:20 pm)
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