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Engine-Codes – Chevrolet – P1258 2017 Chevrolet Silverado

P1258 2017 Chevrolet Silverado Code - Engine Coolant Overtemperature Protection Mode Active

Quick Answer

The P1258 code for a 2017 Chevrolet Silverado indicates that the Engine Coolant Overtemperature Protection Mode is active. Common causes include Low coolant levels, Faulty thermostat, Cooling system blockage. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1258 2017 Chevrolet Silverado indicates Engine Coolant Overtemperature Protection Mode Active.
Common causes
Common causes include Low coolant levels, Faulty thermostat, Cooling system blockage.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P1258 2017 Chevrolet Silverado Description

The P1258 code for a 2017 Chevrolet Silverado indicates that the Engine Coolant Overtemperature Protection Mode is active. This means that the vehicle's computer system has detected that the engine coolant temperature has exceeded safe operating limits, triggering a protective mode to prevent engine damage. When this code is present, the engine may be limited in power output to prevent overheating.

OBDII Code P1258 2017 Chevrolet Silverado - Engine Coolant Overtemperature Protection Mode Active
P1258 2017 Chevrolet Silverado Code - Engine Coolant Overtemperature Protection Mode Active

Common Causes of P1258 2017 Chevrolet Silverado

  1. Low coolant levels
  2. Faulty thermostat
  3. Cooling system blockage
  4. Malfunctioning water pump
  5. Electrical issues with the cooling system sensors or wiring

Symptoms of P1258 2017 Chevrolet Silverado

  1. Engine overheating
  2. Reduced engine performance
  3. Illumination of the temperature warning light on the dashboard
  4. Possible coolant leakage
  5. Engine may run rough or stall

How to Fix P1258 2017 Chevrolet Silverado

  1. Check and top up coolant levels
  2. Inspect and replace the thermostat if necessary
  3. Flush the cooling system to remove any blockages
  4. Test and replace the water pump if it is not functioning properly
  5. Check and repair any electrical issues related to the cooling system

Cost to Fix P1258 2017 Chevrolet Silverado

The cost of repairing a P1258 code on a 2017 Chevrolet Silverado can vary depending on the specific issue causing the code and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's recommended to get a detailed estimate from a trusted auto repair shop.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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