Results 1 to 2 of 2

Thread: service brake system

  1. #1
    Join Date
    Jun 2008

    Default service brake system

    Myself and a few other people have had problems after recalibrating the speedometer. Sometimes the speedometer will start to act lazy and start bouncing and then trigger the ABS and Parking Brake light. Service Brake System will show up on the Display.
    I had swapped Gears and a few others had changed tire sizes.
    Here's a link to a thread that was brought up. I've yet to find any resolve on the issue in any searches on the net.
    All sensors are fine and I've checked my speedometer with my GPS and it's accurate all the way up the odometer.
    The problem only happened after recalibrating.
    Last edited by ViciousKnid; March 8th, 2009 at 01:44 PM.
    408 ECSB|244/248|WCCH 2.5 LSA|
    FLT4|COS3 SD EFI Live|FTI 4200|4.30's|truetrac|

    To Err is Human. To ARRR is Pirate.

  2. #2
    Senior Member
    Join Date
    Sep 2008


    as of now im having the same problems. i check my brakes and they seem fine.
    2002 4.2L I6 Trailblazer LTZ

Similar Threads

  1. Service brake system w/ABS light and Parking Light on
    By mshirshe in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 3
    Last Post: March 13th, 2010, 03:32 AM
  2. Gear Swap and now service brake system/abs light
    By exploder in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 0
    Last Post: May 19th, 2009, 09:04 AM
  3. GM Service Manuals
    By TAQuickness in forum Lounge
    Replies: 15
    Last Post: August 10th, 2006, 09:58 AM
  4. "Service Brake System" message after tune change
    By mtnman in forum General (Petrol, Gas, Ethanol)
    Replies: 0
    Last Post: September 11th, 2005, 02:26 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts