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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
21,000 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 electrical problems

electrical problem

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2007 Chevrolet Suburban Owner Comments

problem #2

Sep 162007


  • 40,000 miles


The contact owns a 2007 Chevrolet Suburban. Whenever the contact turned on the radio while the vehicle was off, she noticed that the battery would fail within a 2 - 10 minute period causing the contact to continually have to replace the battery. The vehicle was taken to the dealership where the contact was informed that the battery needed to be replaced, however the contact continued to experience the failure. The current and failure mileages were 40,000.

- San Jacintl, CA, USA

problem #1

Feb 212007

Suburban 8-cyl

  • 2,000 miles
In August last year I purchased a 2007 Chevrolet Suburban. At 2000 miles the car is 1st totally draining the battery ( I was in camping in the middle of the forest- they found me after 3 hrs- sheriff dept). Since then every month same and the dealer can not find the problem. They changed 3 batteries. Today 2/21/2007 is the 7th time. I pay $825/mth + rent a car every month -- they do not pay for rent a car because they start blame each other. GMC is blaming the dealer and the dealer GMC. I'm in the middle and I don't have a car. I need your help thank you.

- Anaheim, CA, USA

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