Jeep Wrangler 2018-2025 Owners Manual / SERVICING AND MAINTENANCE / VEHICLE MAINTENANCE / Cooling System / Cooling System — Drain, Flush And Refill

Jeep Wrangler: Cooling System / Cooling System — Drain, Flush And Refill

NOTE:

Some vehicles require special tools to add coolant properly. Failure to fill these systems properly could lead to severe internal engine damage. If any coolant is needed to be added to the system please contact an authorized dealer.

If the engine coolant (antifreeze) is dirty or contains visible sediment, have an authorized dealer clean and flush with OAT coolant (conforming to MS.90032).

Coolant Checks

Check the engine, battery (if equipped), intercooler (if equipped), and Motor Generator Unit (MGU) (if equipped) coolant (antifreeze) protection every 12 months (before the onset of freezing weather, where applicable)...

Selection Of Coolant

NOTE: Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant, may result in engine damage and may decrease corrosion protection...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: BRAKE SYSTEM

Your vehicle is equipped with dual hydraulic brake systems. If either of the two hydraulic systems loses normal capability, the remaining system will still function. However, there will be some loss of overall braking effectiveness. You may notice increased pedal travel during application, greater pedal force required to slow or stop, and potential activation of the Brake Warning Light...

Jeep Wrangler 2018-2025 Owners Manual: Instrument Cluster Display Menu Items

NOTE: Depending on the vehicle’s options, feature settings may vary. Speedometer Push and release the up or down arrow button until the speedometer menu icon is displayed in the instrument cluster display. Push and release the OK button to toggle between MPH and km/h...

Bi-Level Mode

Jeep Wrangler. Bi-Level Mode Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.