Check Engine Light Due to Catalytic Converter Failure on Nissan Altima Hybrid

Problem Description and Possible Solution

The catalytic converter closest to the cylinder head can fail causing illumination of the Check Engine Light. Prompt repair of this problem is recommended because the catalyst material can be sucked into the engine and cause internal damage.

Problem Data
RepairPal Verified
Average mileage: 111,882 (54,000–169,765)
Exhaust & Emissions affected: 2.5L 4 Cylinder
4 model years affected: 2007, 2008, 2009, 2010
7 people reported this problem
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The has an intermittent problem--on start up the car will start in gas instead of electric mode. The car will rumble like an old style car in need of tune up or on bad gas in cold weather. Dealership says it needs a new cylinder head. Car is out of warranty by time but in warranty by miles. $3500 to fix a 7 year old car.