P0CC8 covers a plausibility fault of the charge flap A open request switch: the signal is electrically within limits, yet its behaviour makes no sense, for example a button that reports pressed for far too long or never changes state over many wake-ups. No manufacturer documents this code publicly. GM's Volt tables of 2011 to 2013 monitor the same switch only for invalid range, low and high (P0CC7, P0CC9, P0CCA), so the performance check is not used there. CARB 13 CCR 1968.2 (e)(15) requires rationality checks only for inputs that affect emissions or serve another diagnostic, which explains why such comfort inputs are often left out. A GM patent shows the typical layout, in which the release button makes the controller energize the flap actuator. Expect a flap that reacts erratically to the button.
Medium severity. Can I keep driving?If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
Symptoms
- Charge flap opens unexpectedly or ignores the button
- Message about the charge flap in the instrument cluster
Most likely causes
- Mechanically sticking or jammed open request switch
- Worn switch contact giving an implausible signal
- Wiring fault that keeps the signal in an unexpected state
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
What each character of P0CC8 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- C: Subsystem depends on the code range
- C8: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0CC8?
If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
What causes code P0CC8?
The most common causes are: mechanically sticking or jammed open request switch; worn switch contact giving an implausible signal; wiring fault that keeps the signal in an unexpected state.
Related codes
- P0CC6Charge Port Door A Open Request Switch Wake-Up Circuit
- P0CC7Charge Port Door A Open Request Switch Circuit
- P0CC9Charge Port Door A Open Request Switch Circuit Low
- P0CCACharge Port Door A Open Request Switch Circuit High
- P0CCBCharge Port Door A Open Request Switch Circuit Intermittent/Erratic
- P2E94Charge Port Door B Open Request Switch Circuit Performance
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.