# An important questions

**URL:** <https://community.cartalk.com/t/an-important-questions/39720>\
**Category:** Maintenance/Repairs\
**Tags:** yukon, gmc\
**Created:** [November 19, 2009, 5:02pm UTC](https://community.cartalk.com/t/an-important-questions/39720 "2009-11-19T17:02:19Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![sdhvjdhkh](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@sdhvjdhkh](https://community.cartalk.com/u/sdhvjdhkh)\
**Post date:** [November 19, 2009, 5:02pm UTC](https://community.cartalk.com/t/an-important-questions/39720/1 "2009-11-19T17:02:19Z")

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good night evry body,  
  
 when I drive my car which is GMC yukon XL  
  
 some indications are presents on the board these are:Break, ABS and traction OFF.  
  
 please provide the answer as quickly as possible.

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**Author:** ![sdhvjdhkh](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@sdhvjdhkh](https://community.cartalk.com/u/sdhvjdhkh)\
**Post date:** [November 19, 2009, 5:04pm UTC](https://community.cartalk.com/t/an-important-questions/39720/2 "2009-11-19T17:04:53Z")

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GMC YUKON-XL 2002

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**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:** [November 19, 2009, 5:10pm UTC](https://community.cartalk.com/t/an-important-questions/39720/3 "2009-11-19T17:10:51Z")

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If the primary brake warning light comes on, the ABS and the traction control lights will automatically come on. That’s because neither the ABS or the traction control will function if there’s a problem with the primary brake system. So once it’s figured out what’s causing the primary brake warning light to come on, and it’s repaired so the light turns off, the ABS and traction control lights will also turn off.

Tester

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**Author:** ![sdhvjdhkh](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@sdhvjdhkh](https://community.cartalk.com/u/sdhvjdhkh)\
**Post date:** [November 19, 2009, 5:20pm UTC](https://community.cartalk.com/t/an-important-questions/39720/4 "2009-11-19T17:20:03Z")

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thank you for your answer,  
the cause of the proplem as what you said has been solved but we want how we can reset the sysstem of the board

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**Author:** ![tardis](https://avatars.discourse-cdn.com/v4/letter/t/f0a364/32.png) [@tardis](https://community.cartalk.com/u/tardis)\
**Post date:** [November 19, 2009, 7:12pm UTC](https://community.cartalk.com/t/an-important-questions/39720/5 "2009-11-19T19:12:35Z")

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If you had truly fixed the problem, the warning lights would go off without any sort of manual reset needed. Most likely, your brake fluid level is low.

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [November 19, 2009, 7:32pm UTC](https://community.cartalk.com/t/an-important-questions/39720/6 "2009-11-19T19:32:36Z")

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Or the proportioning valve needs to be centered…(by selective bleeding)

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**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\
**Post date:** [November 19, 2009, 10:36pm UTC](https://community.cartalk.com/t/an-important-questions/39720/7 "2009-11-19T22:36:31Z")

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Actually you didn’t ask a question.