# 2010 Buick LaCrosse - Shifts on its own **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** buick\ **Created:** [September 7, 2020, 6:29pm UTC](https://community.cartalk.com/t/2010-buick-lacrosse-shifts-on-its-own/169691 "2020-09-07T18:29:53Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![greg51](https://avatars.discourse-cdn.com/v4/letter/g/67e7ee/32.png) [@greg51](https://community.cartalk.com/u/greg51)\ **Post date:** [September 7, 2020, 6:29pm UTC](https://community.cartalk.com/t/2010-buick-lacrosse-shifts-on-its-own/169691/1 "2020-09-07T18:29:53Z")
2010 buick lacrosse cxl, while driving around 40mph, it shifts to the m1 spot. what is the cause of this? ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [September 7, 2020, 7:56pm UTC](https://community.cartalk.com/t/2010-buick-lacrosse-shifts-on-its-own/169691/2 "2020-09-07T19:56:08Z")
> [@greg51](#): > > it shifts to the m1 spot. For those of who don’t own one of these vehicles, please clarify “the m1 spot”. What–exactly–does that mean? 🤔 ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [September 7, 2020, 8:08pm UTC](https://community.cartalk.com/t/2010-buick-lacrosse-shifts-on-its-own/169691/3 "2020-09-07T20:08:00Z")
The transmission is switching to the manual mode. Tester ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [September 7, 2020, 8:43pm UTC](https://community.cartalk.com/t/2010-buick-lacrosse-shifts-on-its-own/169691/4 "2020-09-07T20:43:45Z")
> [@Tester](#): > > The transmission is switching to the manual mode. Any idea why it would do that on its own?