AUTOMATIC TRANSMISSIONS

  • Tiny
  • lotto38
  • 2010 Buick La Crosse
  • 6 CYL
  • FWD
  • 11,300 miles

This pertains to transmissions.
Buick 2010 LaCrosse. Recalibrated for problem(didn't fix problem). It now shifts later in each gear. Don't like the way it shifts now. Can it be recalibrated back to original specs? Dealer says it cannot be done.

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Friday, July 22nd, 2011 AT 8:35 PM

6 Replies

  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

It was recalibrated to specs what is about shifting you don't like?

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Friday, July 22nd, 2011 AT 8:54 PM
  • Tiny
  • lotto38
  • Member

The tranny shifts at about 500 rpm higher than originaly. This was supposed to take care of a problem, but it did not, and now I an stuck with a tranny that shifts at a higher rpm, thus hurting my mileage.

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Friday, July 22nd, 2011 AT 9:32 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Found A TSB for trans shifting at wrong time REf 09-07-30-016A Date Nov. 25, 2009 ask dealer if that was what they did. If not can they do TSB see if that helps

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Saturday, July 23rd, 2011 AT 5:30 PM
  • Tiny
  • lotto38
  • Member

OK, I will do that, but I guess what I am trying to say is, can you reprogram a tranny without a TSB? In other words, put it back before the TSB that they put on?

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Saturday, July 23rd, 2011 AT 6:20 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

That I doubt they may not have software to do that.

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Saturday, July 23rd, 2011 AT 7:37 PM
  • Tiny
  • lotto38
  • Member

Thank you for your help.

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Saturday, July 23rd, 2011 AT 7:44 PM

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