Problem Description and Possible Solution
On Vehicles with a 4.7L or 5.7L V8 engine, the Check Engine Light may illuminate with code P2181 for a cooling system performance fault. Or technicians tell us that updated software for the powertrain control module (PCM) is available to correct this concern.
Average mileage: 138,179 (107,000–168,672)
Engines affected: 3.7L V6, 5.7L V8 HEMI
17 people reported this problem
Engine light and battery lighy came on.. i pulled over and shut down. Took a few attempts to restart. When it restarted jusy enginr light was on. As soon as i got home i scanned code p2181. I reset code just to sre if it was a fluke has yet to come back on however now my DTE drops fast and mpg is horrible and i cant guess whats wrong.heater work, no light 2 weeks later and still bad