What does engine light on 2006 Grand Cherokee mean?

Answer 1

It Normally will signify something that is more serious, opposed to something minor, the most common reasons are either low oil pressure or low oil level.

It could be as simple as the viscosity of the oil does not match what the manufacturer requires for the engine. My limited 5.7 hemi requires 5/20; there is a sensor that will trigger the oil light to come on if it detects a different weight. However, the best thing to do is to take it to the dealer, and let them read the code.

Answer 2

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.