Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
115,625 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2005 GMC Sierra 1500 drivetrain problems

drivetrain problem

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2005 GMC Sierra 1500 Owner Comments

problem #4

Aug 092016

Sierra 1500

  • 157,000 miles


Castech cylinder heads on 2001 through 2006 5.3L vortec engines are porous and allow antifreeze to seap into the oil. This is a safety concern as it can destroy the engine (oil doesn't lubricate correctly, sludge buildup) and leave someone, at the least, stranded, at the worst, it can cause a huge engine fire. GM has been aware of this since 2007. They issued a bulletin describing the problem and what needs to be done to fix, but no recall. To fix either the cylinder heads need to be replaced ($2500) or the entire engine needs to be replaced ($5500). My vehicle is a 2005 GMC Sierra 1500 sle. Also the problem has been confirmed by a licensed mechanic. The following is a link to the GM issued bulletin.

- Boise, ID, USA

problem #3

Nov 042015

Sierra 1500

  • 107,500 miles
Concerning GM 706 castech cylinder heads/GM tsb 06-06-01-019B I have a 2005 GMC Sierra which has slowly been leaking coolant for about 6 months. I have had it looked at and the dealer informed me that I have a 706 castech cylinder head that is notorious for cracking and leaking. The dealer told me there was coolant inside my oil and recommended replacing the engine. As I have begun researching this issue I realize these cylinder heads affect millions of GM vehicles and loyal customers. GM has issued a tsb and are aware of the issue at hand and in my, and many other customers this should have been a recalled item. I am calling on GM to fix this issue/mistake.

- Pekin, IL, USA

problem #2

Jan 152015

Sierra 1500 4WD 8-cyl

  • 138,000 miles
The contact owns a 2005 GMC Sierra 1500. When the vehicle was placed into gear, the contact noticed that the gear selector was barely illuminated. The failure progressively worsened and the contact had to memorize in what gear the vehicle was placed. The vehicle was not taken to a dealer. The manufacturer was made aware of the failure. The failure mileage was 138,000. Updated 06/15/16 the consumer stated the led shift indicator display had faded, and he was unable to determine what gear the vehicle was in. Updated 06/22/16.

- Laura, OH, USA

problem #1

Jan 012008

Sierra 1500

  • 60,000 miles
Four wheel drive functions intermittently. Replaced switch and transfer motor. Every 6 months four wheel drive becomes inoperative often after a highway run. Costs to repair have exceeded $1000. Conversations with other owners of similar vehicles, including Silverado, experience similar issues.

- Brighton, MI, USA

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