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Extra Effort Needed to Depress Brake Pedal After Vehicle Has Not Been Driven For Extended Period of Time (Reprogram EBCM)

Subject:Extra Effort Needed to Depress Brake Pedal After Vehicle Has Not Been Driven for Extended Period of Time (Reprogram EBCM)

Models:2008 Pontiac Solstice GXP
2008 Saturn Sky Redline
2008 Opel GT
2008 Daewoo G2X



Condition

Some customers may comment that after their vehicle has not been operated for an extended period of time, extra effort may be needed to depress the brake pedal.

Correction

Important: The following Optimized Hydraulic Brake (OHB) characteristics are considered to be normal and no mechanical parts should be replaced in effort to change the operation of the system:

   • Increased brake pedal effort under low brake booster vacuum.
   • Change in brake pedal effort when OHB is active
   • Ratchet sound coming from the brake system during OHB activation
   •  Frequent brake stops may result in OHB activation
   •  High altitude driving may result in OHB activation
   • Brake pedal movement or pulsation when the OHB is active
Refer to Corporate Bulletin Number 07-05-22-002 for further information on Optimized Hydraulic Boost Brake System Characteristics

DO NOT replace the brake vacuum booster, brake vacuum sensor, EBCM or ABS module for this condition.

An Electronic Brake Control Module (EBCM) calibration was released in TIS version 12.0 on November 29, 2007 that may reduce the effort the customer feels when depressing the brake pedal on a car that has not been operated for an extended period of time.

Calibration Information

Callibration Number

Model

25949134

Pontiac Solstice, Saturn Sky, Daewoo G2X

25949135

Opel GT

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

H2508

Electronic Brake and/or Traction Control Module Reprogramming with SPS

Use Published Labor Operation Time