Jeep Wrangler: Yellow Indicator Lights / Rear Axle Lock Indicator Light

Neutral Indicator Light — If Equipped

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Service Adaptive Cruise Control Warning Light — If Equipped

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Other information:

Jeep Wrangler 2018-2026 Owners Manual: Fuel System Cautions

CAUTION! Follow these guidelines to maintain your vehicle’s performance: The use of leaded gasoline is prohibited by Federal law. Using leaded gasoline can impair engine performance and damage the emissions control system. An out-of-tune engine or certain fuel or ignition malfunctions can cause the catalytic converter to overheat...

Jeep Wrangler 2018-2026 Owners Manual: EMISSIONS INSPECTION AND MAINTENANCE PROGRAMS

In some localities, it may be a legal requirement to pass an inspection of your vehicle's emissions control system. Failure to pass could prevent vehicle registration. For states that require an Inspection and Maintenance (I/M), this check verifies the Malfunction Indicator Light (MIL) is functioning and is not on when the engine is running, and that the OBD II system is ready for testing...