IsItAGoodCar
Reliability Guide

Common Problems with the
2018 Jeep Cherokee (KL)

We've identified 3 known issues that can affect the 2018 Jeep Cherokee (KL). 3 of these are serious faults that could be expensive to repair.

3
Known Issues
3
Serious
0
Moderate
0
Minor

All Known Issues

9-Speed Automatic Transmission (ZF 9HP) Faults

SeriousGearbox & Transmission

The ZF 9-speed automatic is notorious for rough shifting, hesitation, and a tendency to "hunt" for gears.

Est. Repair Cost: £250–£3,500
Warning Signs:

Jerky gear changes, Hesitation when pulling away, Unexpected shifting into neutral

What to Inspect:
  • Check for the latest software updates (TCU flashes)
  • Test drive for smooth transitions between 2nd and 3rd gear
Verified by IsItAGoodCar Research Team

Power Transfer Unit (PTU) Failure

SeriousGearbox & Transmission

The PTU, which sends power to the rear wheels, is prone to internal spline wear or actuator failure.

Est. Repair Cost: £800–£1,500
Warning Signs:

"Service 4WD" warning light, Grinding noise from front axle, 4WD system won't engage

What to Inspect:
  • Scan for 4WD system fault codes
  • Check history for PTU replacements or software updates
Verified by IsItAGoodCar Research Team

2.2 MultiJet Turbocharger Failure

SeriousEngine

On UK diesel models, the turbocharger can suffer from premature wear, leading to significant power loss.

Est. Repair Cost: £800–£1,400
Warning Signs:

Loss of power, Whining noise under acceleration, Check Engine light

What to Inspect:
  • Listen for unusual turbo whistle
  • Check for smoke under heavy acceleration
Verified by IsItAGoodCar Research Team

Buying Tips for 2018 Jeep Cherokee (KL)

  • ✓The 9-speed automatic gearbox is the biggest concern; test it thoroughly for hesitant shifts, clunking, or holding gears too long.
  • ✓Check the operation of the 4WD system, particularly on Trailhawk models, to ensure the rear axle engages when required.
  • ✓Listen for knocking from the front suspension, as the heavy diesel engine accelerates wear on bushes and top mounts.
  • ✓Inspect the infotainment system (Uconnect); early versions are prone to freezing and dropping Bluetooth connections.
  • ✓Verify the service history for the Multijet diesel; missed oil changes can quickly lead to turbo or DPF failure.
  • ✓Check for dampness in the front footwells, which can indicate blocked sunroof drains or a failing heater matrix.
20172019
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