P27F4 — Gear Shift Lock Solenoid/Actuator A Performance/Stuck On

What Does P27F4 Mean?

P27F4 is a diagnostic trouble code indicating: Gear Shift Lock Solenoid/Actuator A Performance/Stuck On. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P27F4

⚠️ Check Engine Light (MIL) illuminated
⚠️ Gear Shift Lock Solenoid/Actuator A not meeting expected output
⚠️ Degraded performance of related system
⚠️ Reduced engine performance

Common Causes

🔍 Gear Shift Lock Solenoid/Actuator A degraded from age or contamination
🔍 Mechanical wear in Gear Shift Lock Solenoid/Actuator A or related parts
🔍 Restriction or blockage affecting Gear Shift Lock Solenoid/Actuator A
🔍 Calibration drift in Gear Shift Lock Solenoid/Actuator A

Frequently Asked Questions

What does P27F4 mean?

P27F4 indicates: Gear Shift Lock Solenoid/Actuator A Performance/Stuck On. The vehicle's computer has detected that the Gear Shift Lock Solenoid/Actuator A is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P27F4?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P27F4 for extended periods may cause additional problems.

How much does it cost to fix P27F4?

Repair costs for P27F4 typically range from $50 to $400, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Gear Shift Lock Solenoid/Actuator A for contamination or wear
🔧 Replace Gear Shift Lock Solenoid/Actuator A
🔧 Address any related mechanical faults

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P27F4: Gear Shift Lock Solenoid/Actuator A Performance/Stuck On