Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Parking brake light not going OFF.

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Old Jul 22, 2021 | 07:07 PM
  #1  
mikesbaron's Avatar
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Default Parking brake light not going OFF.

2007.

Just purchased this H3 and of course the parking brake was not full engaging, nor releasing. I adjusted the cable under the frame rail and now it actually engages when I push the pedal down. I still have the problem of when I disengage the parking brake, it comes releases only 80% of it's stroke, but not enough to fully disengage and flip the parking brake switch to the OFF (light on the dash) position. I checked the release cable under the dash and it's in place. I also lubricated the spring and linkage under there to no avail.

Suggestions?
 
Old Jul 22, 2021 | 08:23 PM
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hummerz's Avatar
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Cheap part, replace the 20832044
 
Old Jul 23, 2021 | 08:54 AM
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You may have over-adjusted the cable???????????
 
Old Jul 23, 2021 | 10:06 AM
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pull up on the pedal with the top of your foot?
 
Old Jul 24, 2021 | 12:17 PM
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Check and make sure the parking brake actuators at the wheel hub are not binding due to age/corrosion and lube/work them as needed until they fully release. If they were sticking re-adjust your parking brake, first at the wheel then at the cable along the frame rail.
 
Old Jul 24, 2021 | 09:30 PM
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Thanks for all the great tips. I'll check to see I didn't over adjust the cable first of all.
Is there a good video on rear parking brake actuator adjustment?
 
Old Jul 25, 2021 | 01:17 PM
  #7  
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Here's a couple of videos I watched to help me understand what all was in there before doing mine, and the factory service manual section on the parking brake adjustment.



It's like most drum brakes with a star wheel adjuster that you can access through the back plate (behind the rubber plug). If the actuator is sticking you will need to fix that first either by replacing, or lubricating and working it free.
 
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