TSB: Jeep Coolant Pump

This bulletin applies to 2024-2026 Jeep Wagoneer S vehicles built on or before November 11, 2025 and equipped with either 400V G2300 FR/RR electric drive motors or 400V G2500 FR/RR electric drive motors.

The vehicle may not start due to a depleted battery. A pump type noise may be heard from the vehicle after ignition is set to off. The cause: The auxiliary coolant pumps do not shut off. Replace the auxiliary coolant pump assembly using P/N 68590051AC (KM vehicles) or 68590015AC (LB vehicles).