One problem related to service engine light on has been reported for the 2007 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Toyota Tundra based on all problems reported for the 2007 Tundra.
Service engine light came on while driving under 30mph. Engine no longer starts correctly. Only 51,000 miles. Air pump assembly and air switching valves error code. (p0418) known defunct parts for 2007 Tundras which Toyota extended warranty to 10 years or 150,000 miles. Warranty not sufficient length for this model year for low mileage vehicles. Could not have had properly fixed until check engine light comes on. However, parts fail at 50k+ miles. Please extend warranty to appropriate length for this issue. Numerous similar instances noted upon internet research.