Hi everyone,

My 2008 Malibu only has 48000+ mileages. Its engine light was on. The code was P 0420.
The dealer told me it was not under warranty even I showed him the law and also the warranty details of 8 years or 80000 miles.
http://www.epa.gov/obd/pubs/420f09048.pdf.
I also searched many threads.
Check Engine Light On Code P0420 - Chevy Malibu Forum: Chevrolet Malibu Forums
P0420 code

This case should be under the warranty. But why does not include my car?
I would appreciate it if any guys could help me out this problem.

Thanks

Tell them to look up SB #10134B.....extended coverage for cats, 10years/120K miles......2.4(LE5) engine...

They are to diagnose the vehicle.....if it is found that the cat is not the problem, the customer is not to be charged for this diagnosis...

Condition
Some customers of 2006-2007 model year Chevrolet Malibu vehicles equipped with a 2.2L engine (L61); 2006-2008 model year Pontiac G6 and 2008-2009 model year Chevrolet Malibu and Saturn AURA vehicles equipped with a 2.4L engine (LE5) and 4-speed automatic transmission (MN5); and 2008 model year Chevrolet Malibu and Saturn AURA Hybrid vehicles equipped with a 2.4L engine (LAT) may comment about the illumination of the Malfunction Indicator Lamp. This may be due to erosion of the mat within the catalytic converter.

Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

Dealers are to perform the necessary diagnostic steps to determine if the catalytic converter requires replacement. The customer should not be charged for performing the diagnostic check when it is determined that the catalytic converter is not the cause of the Malfunction Indicator Lamp. A labor code has been provided to submit claims for such diagnosis. Any additional necessary diagnosis and repairs that are not related to the catalytic converter are not covered by this special coverage. The customer should be informed that any further service that is not covered under the New Vehicle Limited Warranty will not be covered by this special coverage.