First off I want to say that theDB POWER Car Engine Diagnostic Fault Code Reader Scan Scanner Tool OBD2 OBD II MS300worked perfectly in our 2009 Malibu.  It  works on OBD-II compliant cars built after 1996 (most of them are OBD-II compliant)  & will retrieve the VIN (Vehicle Identification No) on 2002 and newer vehicles that support Mode 9. When we try it in our 2004 Toyota Sienna & 2006 Civic, I will update my review with the results.One great idea on the packaging suggests you use this to identify any problems with a used car before you buy it.My husband & I were surprised how easy to use this Code Scanner is. The hardest part was getting under the dash to look for the data link connector (DLC). Trying to save my hubby a sore back, I suggested he  do an Internet search to find the DLC location for our Malibu. He decided to look for it first & found it quickly under the dash & centered under the steering wheel. Following the easy-to-understand manual, he hooked it up & continued to follow the step by step instructions. We didn't expect to find anything wrong with our Malibu...and when the scanner's LCD screen didn't show any diagnostic trouble codes (DTC) we knew we were correct. To make sure the scanner was actually working, I decided to check for the VIN number. The VIN number showed up on the screen, so I'd say this code scanner works as promised.I've been told that some car part shops will hook up a scanner for free, but it's nice to have your own. If you're on the road & your car breaks down, this scanner could save you from being ripped off. Also, if you plan on buying a used car, hook this code scanner up to it to check the car for any problems before you buy it.I'll update my review & let you know if it works on  our 2004 Toyota Sienna & our 2006 Honda Civic.No batteries needed.Limited One Year WarrantyUPDATE: 2004 Toyota Sienna...the DLC (it's white)  is located under the dash, slightly to the left of  the steering wheel.  This code scanner worked for our Sienna (no problems were found); however the VIN is not supported.review sample provided