Honda Pilot Transmission System Problem
The Honda Pilot has faced several transmission system issues over the years, especially in certain model years like 2003, 2005, 2009, 2011, 2013, 2016, 2017 and 2019. Some of the common problems have been related to overheating, low transmission fluid levels, internal failures and more - which then lead to issues like slipping, delayed/harsh shifting, warning lights and even accidents in rare cases. Understanding the problems and solutions can help Honda Pilot owners address any transmission problems promptly.
Key Takeaways
- Heat buildup in 2nd gear set causes chipping and failures
- Transmission warning light indicates low fluid, overheating issues
- Problems cause slipping, jerky acceleration, noises and stalls
- Issues most common in 2003/2005/2009/2011/2013/2016/2017/2019 models
| Problem | Cause | Solution |
|---|---|---|
| Heat Buildup | 2nd Gear Overuse | Install Transmission Cooler |
| Low Fluid Level | Leaks, Lack of Change | Identify Leaks, Change Fluid Regularly |
| Slipping | Worn Clutch Packs | Replace Clutch Packs |
| Noisy Operation | Low Fluid, Worn Bearings | Check Fluid Level, Replace Bearings |
| Transmission Failure | Overheating, Age | Install Cooler, Rebuild/Replace Transmission |
The transmission system is one of the most complex and indispensable components in any vehicle. In the Honda Pilot, there have been several reported transmission problems over multiple generations and model years - particularly issues related to overheating, fluid levels, slipping and outright failures.
Understanding the origins and solutions for Honda Pilot transmission problems empowers owners to promptly address any issues and avoid catastrophies. This comprehensive guide examines the roots, symptoms, fixes and preventative steps for transmission problems in Honda Pilots:
Overheating and Fluid Leaks Causing Long-Term Damage
Excess heat is the mortal enemy of automatic transmissions. Heat causes transmission fluids to break down and lose viscosity/lubrication capacity over time. This accelerates wear on internal components like clutch packs, bearings, gears and seals.
The Honda Pilot's transmission lacks an external cooler across most trims prior to the 2019 refresh. This causes rapid heat saturation, especially when towing or in extreme conditions. Failed seals then lead to fluid leaks and inadequate levels - further exacerbating overheating issues.
Symptoms of overheating and leaks include:
- Transmission overheating warning messages
- Burning smell from transmission
- Visible leaks underneath Honda Pilot
- Delayed/harsh gear changes
- Slipping between gears
- Discolored or inadequate transmission fluid levels
Solutions involve:
- Installing an auxiliary transmission cooler and fluid pump
- Identifying the source of leaks and resealing/replacing components
- Frequently checking fluid levels
- Changing fluids every 30-50k miles (or 2-4 years) religiously
Internal Hard Part Failures Causing Crashes
Though rare, there have been reports of catastrophic hard part failures within the Honda Pilot's transmission - typically in higher mile or older vehicles. These involve breakages of gears and shafts inside the transmission, which then release debris throughout the assembly and lead to sudden locking up.
Most notably, there have been a few reports of second gear set failures over the years. Bearings tend to wear out in this component due to high rotational speeds/temperatures, eventually fracturing teeth off of 2nd gear itself.
The released debris blocks further gear changes, often at high speeds - leading to accidents in some cases before recalls and design updates were issued.
Symptoms include:
- Loud grinding/snapping noises from transmission
- Sudden inability to shift / engage gears
- Transmission overheating warnings/burning smell
- Check engine light activated
- Visible leaks from cracks in transmission case
Solutions require:
- Rebuilding or replacing the transmission assembly
- Identification and repair of root causes (cooling, wear etc)
- Installation of improved components in rebuild/replacement
Software and Solenoid Faults Causing Shifting/Slipping Issues
The Honda Pilot's transmission computer controls gear changes, torque converter lockup and shift feel via solenoid actuators. Faulty solenoids or glitches in the computer's programming can cause erratic shifting behaviors.
Issues reported in this area include harsh/premature shifts, excessively delayed engagements, rpm flares between gears and even complete transmission failures.
Though not dangerous per se, these problems result in a poor driving experience plus long term wear from slipping components.
Symptoms involve:
- Harsh/jumpy shifting at low speeds
- Delayed kick down when accelerating
- Flared RPMs between gear changes
- Transmission slipping/losing traction
- Complete transmission failures
Fixes require:
- Software updates and computer resets
- Diagnosis and replacement of malfunctioning solenoids
- band adjustments to prevent slipping
Further Diagnosing Transmission Issues
While a mechanic's professional diagnosis is recommended for confirming and addressing Honda Pilot transmission problems, DIY owners can perform some basic checks themselves:
Symptom-Based Diagnosis
Pay attention to the transmission's noise, responsiveness and smells during regular driving:
- Harsh shifts or slippage hints at low fluids, worn clutches or solenoids
- Burning odors suggest overheating and fluid breakdown
- Grinding noises can indicate worn bearings or gear damage
Fluid Condition Checks
Inspect transmission fluid levels and condition via the dipstick and filler holes:
- Low or inadequate fluid hints at leaks or neglect
- Dark/degraded fluid color indicates heat damage
- Glittery fluid contains ground-up internal debris
On-Board Computer Trouble Codes
Scan for diagnostic trouble codes using an OBD-II scanner:
- Codes like P0700-P0799 point to specific transmission issues
- Research codes to identify failing components
While not definitive, these basic diagnostics aide mechanics by pinpointing areas of concern rapidly during repairs. Catching problems early also prevents additional ancillary damage within the transmission.
Seeking Professional Transmission Repairs
If problems are confirmed through testing and scans, trusted transmission shops can properly rectify issues in Honda Pilots:
Fluid Flushes
A fluid flush clears out degraded oil and deposits from internal channels:
- Recommended after scan/symptom-based issues present
- Preventative every 60-100k miles without problems
Component Rebuilds and Swaps
For vehicles within their lifespan, rebuilding failing components retains unused mileage:
- Items like valve bodies, torque converters and gear sets are rebuilt/replaced
- Retains drivetrain with acceptable core mileage
Remanufactured Transmissions
When rebuilding cost exceeds replacement, a re-manufactured transmission bolts in:
- Rebuilt to factory-new specifications off-vehicle
- Rigorously tested to confirm perfect operation
- Often sold with generous warranties against defects
New Transmissions
For those insistent on zero-mileage assemblies, brand-new transmissions install identical to factory units. However, pricing is drastically higher over reman options.
With early intervention and reputable part quality, a rebuilt transmission can deliver like-new performance reliably for years to come. Work with patient, experienced transmission specialists for lasting peace of mind.
Preventing Issues in Your Honda Pilot
While even well-maintained transmissions inevitably wear out, proper care drastically reduces problems in Honda Pilots:
Preventative Maintenance Steps
- Install a supplemental transmission cooler & pump
- Change transmission fluid every 30-50k mi/2-4 yrs
- Immediately address leaks and top up fluids
- Keep powertrain software up to date
- Avoid excessive towing/hauling without cooler installed
Paying attention and promptly addressing symptoms also prevents minor issues from snowballing into catastrophes down the line. With diligent fluid changes/additions and installed coolers, there's no reason a well-built Honda transmission can't exceed over 200k miles.
Additional Solutions for Specific Model Years
While all Honda Pilots benefit from the maintenance in the above guide, certain generations have additional quirks worth addressing:
2003 Models
Update PCM/TCM software to most current revision to prevent slipping and poor shift quality. Earlier logic had less precise control than newer versions.
2005 Models
Inspect transmission cooler lines that pass through left/right body frames for corrosion wear and leaks. Failures allow debris into transmission.
2011 Models
PCV system faults can blow oil into transmission under boost conditions, reducing friction and causing slippage. Clean/update PCV plus change fluids.
2016 Models
Several TCM software bugs plagued 2016's 9-speed auto, causing harsh downshifts, slips and stalls. Reprogramming the computer alleviates most problems.
Frequently Asked Questions
Q: What are the most common Honda Pilot transmission problems overall?
A: Overall, fluid overheating/leaking and subsequent failures of internal components are the most widespread Pilot transmission issues. Coolers and diligent fluid service alleviate most problems.
Q: Which Honda Pilot model year transmission issues are most severe?
A: The 2003 and 2005 Pilots faced the highest rate of internal hard part failures from manufacturing defects. Honda improved designs and materials quality in later years.
Q: Why does my Honda Pilot hesitate before shifting to the next gear?
A: Delayed shifts usually stem from low fluid levels allowing clutch packs to slip, worn valves/solenoids not actuating promptly or even glitches in the transmission computer's programming.
Q: Are Honda Pilot transmission problems coverable under warranty?
A: In most cases, the 5-year/60k mile powertrain warranty covers repairs to internal transmission defects. Overheating issues due to accessory use and fluid neglect void this coverage however.
Q: Does installing an aftermarket transmission cooler void the Honda Pilot’s warranty?
A: Generally no - modifying cooling systems doesn't directly impact powertrain internals and their defect coverage. But verify your specific policies.
Q: What happens if low transmission fluid levels are driven with excessively?
A: Driving without adequate fluid circulation causes overheating, accelerated wear and eventual failure of internal components from lack of lubrication.
Q: Can neglected transmission issues lead to engine damage in a Honda Pilot?
A: Yes, if metal debris from internal failures backflows into the oil galleries and circulation system, it can abrasively damage bearings and surfaces in the engine.
Q: How much does it cost to rebuild or replace a Honda Pilot transmission?
A: For professional shop quotes, rebuilt transmissions average $1800-$2800 and replacements $3500-$5500 - varying by model year and work complexity.
Q: Is it possible to diagnose Honda Pilot transmission problems without a mechanic?
A: While challenging for the average owner, scanning for diagnostic trouble codes, observing symptoms during test drives and checking fluid condition can identify problems.
