OBD codes / P0128 / Nissan Rogue
P0128 on a Nissan Rogue
Coolant Thermostat Below Regulating Temperature
QR25 Rogue.
What P0128 usually means on a Rogue
P0128 means the Rogue is not warming to target temperature fast enough, which the ECU reads as a thermostat stuck open. It typically appears in cold weather as the thermostat wears, sometimes with a lukewarm heater. It is a routine repair on the QR25. Verify coolant level and the temp sensor before replacing the thermostat.
Most likely causes on this model
- Thermostat stuck open
A worn thermostat that will not close is the dominant P0128 cause on the Rogue.
- Faulty coolant temperature sensor
A low-reading sensor can trip the code with a good thermostat.
- Low coolant or air pocket
Insufficient coolant or trapped air skews warm-up.
What it costs on a Rogue
The thermostat is inexpensive with reasonable access on the QR25, making this a cheaper temperature-related job. Confirm the temp sensor and coolant level first to avoid a redundant part. Installed cost usually stays in the low hundreds.
Year, engine and mileage change the answer. Get a diagnosis for your Rogue — it weighs these causes against your exact configuration and real complaint data.
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Related symptoms
Nissan Rogue problems & recalls by year
Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0128 behavior is covered on the main P0128 page. Confirm with a scan tool before buying parts.