One problem related to check engine light on has been reported for the 2009 Toyota Camry. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Toyota Camry based on all problems reported for the 2009 Camry.
Oil level low for 2009 Toyota Camry serviced within recommended service intervals. Oil change by dealer 06/08/13 at 62,444 miles. Oil change by jiffylube 02/22/14 at 67,433 miles, reporting oil level 1 quart low on arrival. Oil change 09/27/14 by dealer at 71,774 miles. Oil light on ~06/29/2015 followed by oil change by jiffylube 07/01/15 at 76,277 miles, reporting oil level 1 quart low on arrival. Oil light came on 10/30/2015 then check engine light on 10/31/2015. Stopped by jiffylube 11/01/2015 at 78,035 miles to learn oil level was once again 1 quart low. Fluids topped off by jiffylube. However, check engine light remains on. Please let me know if other such reports exist, if this has been identified as an issue, is being tracked and next steps. Thank you.