Toyota Highlander
P0128
Learn about the common signs of a failing thermostat in the Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.
5 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
2 affected
thermostatThermostat
Symptoms
10 common
- •Overheating Engine
- •Inconsistent Temperature Readings
- •Coolant Leaks
- +7 more
Most Affected Generations
1 generation
XU70
5
Top Affected Components
2 components
thermostat
4
Thermostat
1
Severity Levels
1 level
medium
5
Quick Facts
5
Total Solutions
2
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 5 of 5 solutions for error code P0128 across all generations.
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