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:
0 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 windows / windshield problems

windows / windshield problem

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2007 Chevrolet Suburban Owner Comments

problem #1

Nov 012006

Suburban 8-cyl

  • Automatic transmission
  • miles


Manufacture defect in windshield, when looking through glass everything looks wavy. Very distracting while driving and gives me headaches. Took to service department at dealer, they replaced the windshield with one worse than the first one, complained on the spot. Service department contacted glass manufacturer. Glass manufacturer says all the windshields are defective in spots. I have been waiting about six month for a good windshield-cant drive it much, gives me really bad headaches, and a feeling of motion sickness.

- Inkster, MI, USA

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