# General Motors 2010 Impala intermittent ABS brake pulse on low speed turn

**URL:** <https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132>\
**Category:** Maintenance/Repairs\
**Created:** [March 20, 2013, 7:53pm UTC](https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132 "2013-03-20T19:53:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Charles\_in\_Raleigh](https://avatars.discourse-cdn.com/v4/letter/c/dc4da7/32.png) [@Charles\_in\_Raleigh](https://community.cartalk.com/u/Charles_in_Raleigh)\
**Post date:** [March 20, 2013, 7:53pm UTC](https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132/1 "2013-03-20T19:53:32Z")

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When turning a corner at low speed (left or right) while riding the brake, if the suspension bounces (e.g., crossing uneven manhole cover) the left front brake pulses for .5-2 seconds. The pulse is felt in the brake pedal. A grunt noise comes from the suspension. Cannot reproduce over parking lot speed bumps.

Any ideas or know-for-sure?

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**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\
**Post date:** [March 20, 2013, 8:13pm UTC](https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132/2 "2013-03-20T20:13:12Z")

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I would say the ABS is coming on. It thinks a wheel is locked up when it loses contact with the ground and then the ABS kicks in.

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [March 20, 2013, 8:34pm UTC](https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132/3 "2013-03-20T20:34:27Z")

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It sounds like the ABS system is working normally. How about slowing down before the turn and then you don’t have to ride the brakes? Try that.

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [March 20, 2013, 9:14pm UTC](https://community.cartalk.com/t/general-motors-2010-impala-intermittent-abs-brake-pulse-on-low-speed-turn/78132/4 "2013-03-20T21:14:29Z")

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If while applying the brakes you travel over any surface with one wheel that allows that wheel to los traction, such as a slippery (wet) manhole cover or a ripple in the road large enoiugh to bounce the wheel, the ABS will activate. That’s normal.

But there are things that can exascerbate the problem; such as a worn down tire, improper tire inflation, some out-of-alignment conditions, and tired struts. Be sure all of these things are in good shape and it’ll reduce the chances of loss of traction.