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.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

Print this page Notes: Engines shouldn't need a new quart of oil every 500-1000 miles, but for thousands of Suburban owners that's exactly what's happening. Engine oil consumption on aluminum block engines with Active Fuel Management (AFM) is out of control and owners are left looking for answers.

The most likely culprit is an uncovered AFM valve which, in many cases, can be covered under warranty. The problem is the issues don't stop there and many owners have been told by GM just to buy a new engine. Take one guess who they want to pick up the tab.


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
502 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.

2007 Chevrolet Suburban accessories - interior problems

accessories - interior problem

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2007 Chevrolet Suburban Owner Comments

problem #3

May 152007

Suburban 4WD 8-cyl

  • Automatic transmission
  • 1,500 miles


The contact owns a 2007 Chevrolet Suburban 1500. He stated that he was unable to read the speedometer and other instruments during daylight. He attempted to adjust the brightness of the instrument panel; however, the problem continued to occur. A complaint was submitted to General Motors. The failure mileage was 1,500 and the current mileage was 8,440. Updated 02-04-08.

- Cave Creek , AZ, USA

problem #2

Jan 072007


  • miles
While driving my 2004 GMC Suburban home with my family. I looked down and noticed I was driving at 90 miles an hour. What a surprise. The speedometer was reading wrong. By the time I got home I was going 120 miles an hour pulling into my driveway. This just happened and I have not gotten it fixed yet. This could be a major safety issue if not fixed. I read many blogs and many people have had this same issue. I am very lucky that no one was injured or killed by this safety issue. In my opinion this should be covered by a safety recall. I work for GM and I am very embarrassed by this quality issue. So much for the quality of GM vehicles when I see many other customers have the same issue.

- Ney, OH, USA

problem #1

Jul 072006

Suburban 8-cyl

  • Automatic transmission
  • 5 miles
: the contact stated that in order to view the instrument panel during the day the lights needed to be illuminated. The consumer was unable to read any of the features on dashboard. Updated 01/10/07.

- Flippin, AR, USA

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