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3. If the brake system warning lamp remains illuminated, DO NOT proceed to test drive the vehicle until it is diagnosed and repaired. Refer to Symptoms - Hydraulic Brakes. 4. Select a smooth, dry, clean and level road or large lot that is as free of traffic and obstacles as possible for brake system low speed road testing. 5. With the transmission in PARK, lightly apply the brake pedal. Observe both the pedal feel and the pedal travel. 6. If the brake pedal apply felt spongy or the pedal travel was excessive, DO NOT drive the vehicle until it is repaired. 7. If the brake pedal apply did not feel spongy and the pedal travel was not excessive, proceed to step 8. 8. Release and apply the brakes. 9. While continuing to apply the brakes, shift the transmission into DRIVE, release the brakes and allow the engine to idle the vehicle away from the stopped position. Observe for a slow 10. With the aid of an assistant to observe the vehicle's performance from outside of the vehicle, drive the vehicle at a low speed and lightly apply the brakes while driving past the assistant. 11. If the brake pedal apply effort was excessive or the pedal travel was excessive, DO NOT continue to test drive the vehicle until it is repaired. 12. If the brake pedal apply effort was not excessive and the pedal travel was not excessive, proceed to step 13. 13. Drive the vehicle in the opposite direction, at the same low speed and lightly apply the brakes while driving past the assistant. Have the assistant observe for brake system noise 14. Drive the vehicle at a low speed and shift the transmission into NEUTRAL without applying the brakes. Observe for a rapid deceleration in vehicle speed, indicating possible brake 15. Select a smooth, dry, clean and level road that is as free of heavy traffic as possible for brake system moderate speed road testing. 16. Drive the vehicle at a moderate speed. Observe for a pull and/or incorrect tracking of the vehicle without the brakes applied. 17. While continuing to drive the vehicle at a moderate speed, perform several light applies of the brakes. Observe the pedal effort and the pedal travel, observe for brake system noise, 18. If the brake pedal apply effort was excessive or the pedal travel was excessive, DO NOT
2007 Hummer H3 2007 BRAKES Hydraulic Brakes - H3
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