Moonroof bursts and shatters while driving
Sudden, loud shattering with no warning
Check engine light: Off
The moonroof "burst and shattered into thousands of pieces" while driving, with no prior warning.
PROBLEM GUIDE
2014–2016 Toyota Highlander Common Problems
Here's what owners are experiencing, based on our research of real owner reports and repair data.
Last updated February 2026
190
complaints filed for the 2015 model year
2014–2016
Model years affected
$3,154 – $4,500
Typical repair cost, by problem
Quick Scan: 12 Issues
Click a problem for the full write-up — symptoms, what we found, and typical repair costs where we have them.
PROBLEM
SYMPTOMS
TYPICAL REPAIR COST
- SYMPTOMS
Sudden, loud shattering with no warningTYPICAL REPAIR COST
— - SYMPTOMS
Plastic around the control melts, flames reportedTYPICAL REPAIR COST
— - SYMPTOMS
Bare metal exposed, leading to panel corrosionTYPICAL REPAIR COST
— - SYMPTOMS
Doors cannot be locked or unlocked with the key fobTYPICAL REPAIR COST
— - SYMPTOMS
Fails to match traffic speedTYPICAL REPAIR COST
$3,154 – $4,500 - SYMPTOMS
A massive oil leak and loss of oil pressure occursTYPICAL REPAIR COST
— - SYMPTOMS
The airbag light comes on due to a problematic center airbag sensorTYPICAL REPAIR COST
— - SYMPTOMS
The check engine light comes on due to a hose off of the air filter housingTYPICAL REPAIR COST
— - SYMPTOMS
The check engine light comes on due to a failed oxygen sensor componentTYPICAL REPAIR COST
— - SYMPTOMS
The ignition coil may fail after 100,000 milesTYPICAL REPAIR COST
— - SYMPTOMS
The check engine light comes on due to a failed EVAP purge control valveTYPICAL REPAIR COST
— - SYMPTOMS
A rough idle and backfiring engine occurs with the check engine light onTYPICAL REPAIR COST
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Heated seat control melts and catches fire
Plastic around the control melts, flames reported
Check engine light: Off
A heated seat control reportedly melts and catches fire — "plastic around the control began to melt and flames were coming out." A similar heated-seat fire hazard has been reported on the Toyota Venza.
Blizzard Pearl paint delaminates from the primer
Bare metal exposed, leading to panel corrosion
Check engine light: Off
Blizzard Pearl paint delaminates from the primer, exposing bare metal and leading to panel corrosion — the same paint-peeling problem has been reported on the Toyota RAV4 and Toyota Prius.
Door lock actuator failures
Doors cannot be locked or unlocked with the key fob
Check engine light: Off
Door lock actuators fail, and doors "cannot be locked or unlocked with a remote key fob."
Transmission frequently refuses to downshift
Fails to match traffic speed
Check engine light: On
The transmission frequently refuses to downshift to match traffic speed; separate torque-converter failures required full transmission replacement.
$3,154 – $4,50072,000 – 252,434 mi
Massive Oil Leak and Loss of Oil Pressure
A massive oil leak and loss of oil pressure occurs
Check engine light: Off
A massive oil leak and loss of oil pressure occurs. This is among the more frequently reported issues on this generation, with 148 owner reports on file.
Airbag Light Due to Problematic Center Airbag Sensor
The airbag light comes on due to a problematic center airbag sensor
Check engine light: Off
The airbag light comes on due to a problematic center airbag sensor. This is among the more frequently reported issues on this generation, with 68 owner reports on file.
Check Engine Light Due to Hose Off of Air Filter Housing
The check engine light comes on due to a hose off of the air filter housing
Check engine light: On
The check engine light comes on due to a hose off of the air filter housing. This is among the more frequently reported issues on this generation, with 73 owner reports on file.
Check Engine Light Due to Failed Oxygen Sensor Component
The check engine light comes on due to a failed oxygen sensor component
Check engine light: On
The check engine light comes on due to a failed oxygen sensor component. This is among the more frequently reported issues on this generation, with 62 owner reports on file.
Ignition Coil May Fail After 100,000 Miles
The ignition coil may fail after 100,000 miles
Check engine light: On
The ignition coil may fail after 100,000 miles. This is among the more frequently reported issues on this generation, with 53 owner reports on file.
around 100,000 miles per owner reports
Check Engine Light Due to Failed EVAP Purge Control Valve
The check engine light comes on due to a failed EVAP purge control valve
Check engine light: On
The check engine light comes on due to a failed EVAP purge control valve. This is among the more frequently reported issues on this generation, with 17 owner reports on file.
Rough Idle and Backfiring Engine with Check Engine Light
A rough idle and backfiring engine occurs with the check engine light on
Check engine light: On
A rough idle and backfiring engine occurs with the check engine light on. This is among the more frequently reported issues on this generation, with 11 owner reports on file.
Enter your VIN to check whether the EPS steering-assist recall (15V144000) applies to your specific car.
The information on this page is for general educational purposes only and is not a diagnosis. It is compiled from aggregated owner-reported data and publicly available sources, not from an inspection of your vehicle. Symptoms described here can have multiple causes, and the presence of a commonly reported problem does not mean your vehicle has it. Repair cost ranges are estimates that vary by region, shop, vehicle condition, and parts availability. Recall and service campaign information may be incomplete or out of date — verify current recall status with NHTSA or your manufacturer. MyGearGuru is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer; manufacturer and model names are used for identification only. Always consult a qualified technician before making repair decisions.
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A moonroof "burst and shattered into thousands of pieces" while driving. Separately, a heated seat control reportedly melts and catches fire. The same heated-seat fire hazard is reported on the Toyota Venza.