Code result
P0126
Insufficient Coolant Temperature for Stable Operation
Moderate severity
What it means
Coolant temperature stays below the value expected for stable engine operation. Almost always points to a thermostat stuck open or a sensor reading lower than the actual engine temperature.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Thermostat stuck open
highOne of the most commonly reported causes for this code — check this first.
Related help
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