P1276 — Accelerator Pedal Position (APP) Sensor 1 Performance

What Does P1276 Mean?

P1276 is a manufacturer-specific diagnostic trouble code: Accelerator Pedal Position (APP) Sensor 1 Performance. This code applies to BUICK, CADILLAC, CHEVY, CHRYSLER, GM vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1276

⚠️ Check Engine Light (MIL) illuminated
⚠️ Accelerator Pedal Position (APP) Sensor 1 not meeting expected output
⚠️ Degraded performance of related system
⚠️ Reduced engine performance

Common Causes

🔍 Accelerator Pedal Position (APP) Sensor 1 degraded from age or contamination
🔍 Mechanical wear in Accelerator Pedal Position (APP) Sensor 1 or related parts
🔍 Restriction or blockage affecting Accelerator Pedal Position (APP) Sensor 1
🔍 Calibration drift in Accelerator Pedal Position (APP) Sensor 1

Frequently Asked Questions

What does P1276 mean?

P1276 indicates: Accelerator Pedal Position (APP) Sensor 1 Performance. The vehicle's computer has detected that the Accelerator Pedal Position (APP) Sensor 1 is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1276?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1276 for extended periods may cause additional problems.

How much does it cost to fix P1276?

Repair costs for P1276 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 Accelerator Pedal Position (APP) Sensor 1 for contamination or wear
🔧 Replace Accelerator Pedal Position (APP) Sensor 1
🔧 Address any related mechanical faults

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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.

P1276: Accelerator Pedal Position (APP) Sensor 1 Performance