Jeep Wrangler 2018-2024 Owners Manual / SERVICING AND MAINTENANCE / VEHICLE MAINTENANCE / Cooling System
Jeep Wrangler: VEHICLE MAINTENANCE / Cooling System
WARNING!
- You or others can be badly burned by hot engine coolant (antifreeze) or steam from your radiator. If you see or hear steam coming from under the hood, do not open the hood until the radiator has had time to cool. Never open a cooling system pressure cap when the radiator or coolant bottle is hot.
- Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan starts automatically and may start at any time, whether the engine is running or not.
- When working near the radiator cooling fan, disconnect the fan motor lead or turn the ignition to the OFF mode. The fan is temperature controlled and can start at any time the ignition is in the ON mode.
- Coolant Checks
- Cooling System — Drain, Flush And Refill
- Selection Of Coolant
- Adding Coolant
- Cooling System Pressure Cap
- Disposal Of Used Coolant
- Coolant Level
- Engine Coolant Level — 2.0L
- Cooling System Notes
Exhaust System
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
If you notice a change in the sound of the
exhaust system; or if the exhaust fumes can be
detected inside the vehicle; or when the
underside or rear of the vehicle is damaged;
have an authorized technician inspect the
complete exhaust system and adjacent body
areas for broken, damaged, deteriorated, or
mispositioned parts...
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)...
Other information:
Jeep Wrangler 2018-2024 Owners Manual: Oil Change Reset — If Equipped
Your vehicle may be equipped with an engine oil change indicator system. The “Oil Change Required” message will display in the instrument cluster display for five seconds after a single chime has sounded to indicate the next scheduled oil change interval...
Jeep Wrangler 2018-2024 Owners Manual: Door Frame Removal
NOTE: In four door models, the rear door frames must be removed first, followed by the front door frames. Using the provided #40 Torx head driver and ratchet, loosen the Torx screws located on the underside of each door frame (two per door)...
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To Unlock From The Driver or Passenger Side
With a valid Passive Entry key fob within 5 ft (1.5 m) of the door handle, grab the handle to unlock the vehicle. Grabbing the driver’s door handle will unlock the driver door automatically. Grabbing the passenger door handle will unlock all doors and the swing gate automatically.
Grab The Door Handle To Unlock
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