The worst 2006 GMC Topkick 8500 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 2
Service brakes, air
- What is wrong
- Certain trucks fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." an internal control and check valve within the air brake application valve assembly was configured improperly, preventing air from flowing through the brake system as designed. In the event of an emergency stop, the vehicle's stopping distance would be increased.
- Risk
- If stopping distance was limited, a vehicle crash could result.
- Remedy
- Dealers will replace the air brake application valve assembly on c-series or reroute the air brake lines on t-series free of charge. The recall began on september 20, 2006. Owners may contact chevrolet at 1‑800‑630‑2438, gmc at 1‑866‑996‑9463 and isuzu at 1‑800‑255‑6727.
Recall number 06V311000 · Recall details
Parking brake: conventional: air
- What is wrong
- Certain medium duty trucks equipped sr-7 bendix brake valves, the check valve inside the valve cavity may not properly set, causing internal air leakage. If the check valve does not properly seat, the resulting leakage can cause a delay in the application of the spring brakes to park the vehicle after operator pulls the dash valve button.
- Risk
- The delayed parking brake application can occur without warning, leading to unintended vehicle rollaway increasing the risk of a crash.
- Remedy
- Dealers will inspect the valves and replace it free of charge. The recall began on july 31, 2006. Owners may contact chevrolet at 1‑800‑630‑2438, gmc at 1‑866‑996‑9463, or isuzu at 1‑800‑255‑6727.
Recall number 06V254000 · Recall details
Technical service bulletins for the 2006 GMC Topkick 8500 126
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- Unknown or other
- This service bulletin provides information for dealers/technicians on When and How to Submit a Field...
- Unknown or other
- Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles
- GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves...
- This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as...
- This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- This Warranty Administration bulletin provides retail and wholesale service personnel with the...
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Questions about the 2006 GMC Topkick 8500
Is the 2006 GMC Topkick 8500 reliable?
Owners have filed 0 complaints about the 2006 GMC Topkick 8500.
What is the most common problem with the 2006 GMC Topkick 8500?
There are not enough complaints to tell.
How many recalls does the 2006 GMC Topkick 8500 have?
2 recalls, covering service brakes, air and parking brake.
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