Park Shouldn't Sound Like This
You come to a stop, shift from Drive to Park, and your 2021 Explorer makes a grinding, crunching, or clunking noise. Sometimes you have to try twice to get it into Park. This isn't how a $50,000 vehicle should behave.
The 10R60 10-speed transmission in the Explorer has generated complaints about Park engagement. Let's investigate.
What You're Experiencing
- Grinding noise when shifting to Park
- Clunk or thud when Park engages
- Shift lever won't go fully into Park on first try
- Vehicle rolls slightly before Park catches
- Warning message about transmission
- May happen more often on inclines
How Park Works
When you shift to Park, a parking pawl—a small metal finger—drops into notches in the output shaft's parking gear. If the car is still rolling even slightly, or if the pawl and gear don't align, you get grinding as metal tries to mesh. The transmission should manage this smoothly, but sometimes doesn't.
Why This Happens
Software/Calibration Issue
The transmission control module may not be managing Park engagement properly. Ford has released software updates addressing shift quality issues.
Still Rolling When Shifted
If you shift to Park while the vehicle is still moving even slightly, the pawl can grind. This is user behavior, not a defect—but the transmission should still manage it gracefully.
Parking Pawl Wear or Damage
If the pawl or parking gear has damage, engagement is rough. This requires internal transmission work.
Shift Cable or Linkage Issue
If the cable doesn't fully communicate your shift intent, the transmission may not fully commit to Park mode.
Low Transmission Fluid
Low fluid affects internal pressure and control. However, the 10-speed is a sealed unit and shouldn't lose fluid.
What to Try
- Complete stop first - Ensure the vehicle is fully stopped before shifting to Park
- Use the parking brake - Apply before shifting to Park to take load off the pawl
- Check for TSBs - Ask your dealer about software updates for transmission control
- Document the issue - Video the noise for your dealer appointment
Repair Costs
- PCM/TCM software update: $0 (warranty) to $150
- Shift cable adjustment: $100 - $250
- Parking pawl replacement: $800 - $1,500
- Transmission rebuild: $3,500 - $6,000
Warranty Coverage
The 2021 Explorer is covered by Ford's 5-year/60,000-mile powertrain warranty. Transmission issues, including Park engagement problems, should be covered. Document your experiences and push for resolution.
When It's You vs. Defect
Shifting to Park while still rolling is technically user error. But if the grinding happens even when fully stopped, or if multiple shift attempts are needed, that's a defect Ford should address.