Check Engine Light Code P2181 For a Cooling System Performance Fault on Jeep Grand Cherokee

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.

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Average mileage: 148,573 (118,000–168,672)
Engines affected: 3.7L V6, 5.7L V8 HEMI
4 model years affected: 2006, 2007, 2008, 2009
6 people reported this problem
1 person shared problem details
2008 Jeep Grand Cherokee- 3.7L V6159,047
Wife was driving the car and said all the lights came on and the engine came on with another light she didn't know what it meant. Read the code off the OBDII and the cooling system performance 2181 was issued. How do I go about fixing it?
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