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P0729: Gear 6 Incorrect Ratio

Severity
Low
NHTSA Reports
2
Vehicles Affected
1
System
Powertrain

What Does P0729 Mean?

P0729 is a diagnostic trouble code indicating: Gear 6 Incorrect Ratio. This code relates to the transmission system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of P0729

P0729 Reports by Year

2021
1
2026
1

Real Owner Reports

From NHTSA complaint database โ€” actual owner descriptions.

"TRANSMISSION FAILURE warning came up on dash. I saw the RPMs go up to over 120. I had no previous problems with the car before this incident. CAR RAPIDLY LOST ACCELERATION while driving 60MPH on State Road 80 in Labelle FL. Since the car lost acceleration so fast the car behind me had to pass quick"

โ€” Ford Escape owner, 04/28/2021

"1. Transmission failure, it is available for inspection up until time of repair. 2. The vehicle lost power while driving, had incidents of jerking forward without warning, and shifter would get stuck. 3. Yes, independent service center. 4. Yes, when the incident occurred (Transmission Fault Service "

โ€” Ford Escape owner, 02/06/2026

Source: NHTSA Complaints Database

Most Reported Vehicles for P0729

Based on NHTSA owner complaint data.

# Vehicle Reports
1 FORD ESCAPE

P0729 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

Frequently Asked Questions

Is it safe to drive with this transmission code?
Use caution. Transmission codes can indicate serious issues that worsen with continued driving. Avoid highway speeds until diagnosed.
Do I need a full transmission rebuild?
Not necessarily. Many transmission codes are caused by solenoids, sensors, or low fluid โ€” which are much cheaper fixes than a rebuild.
How much does a transmission repair cost?
Solenoid replacement: $200-500. Valve body: $500-1,000. Full rebuild: $1,800-3,500. Get a proper diagnosis first.

What To Do Next

Possible Fixes

  • ๐Ÿ”ง Have the code scanned with a professional-grade scanner to read freeze frame data
  • ๐Ÿ”ง Check transmission fluid level and condition; top off or change if needed
  • ๐Ÿ”ง If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50โ€“$150) pinpoints the root cause.

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