B3031 on Pontiac
Security System Controller in Learn Mode
B3031 on Pontiac vehicles indicates security system controller in learn mode. Au7o has documented this code across 1 Pontiac model — most commonly on G6. B3031 is a manufacturer-specific body code (common on GM vehicles) indicating the body control module has entered, or is stuck in, the security/anti-theft key learn mode. It is often an informational status rather than a true failure, set automatically while a coded key is being programmed and cleared once learning completes. It only indicates a real fault if the module fails to exit learn mode, which can disable starting and illuminate the security indicator.
Common Causes of B3031
- •Module currently in normal key-learning procedure (informational)
- •Key programming not completed correctly
- •Failed key relearn / fewer than required keys learned
- •Faulty or unrecognized transponder key
- •BCM software or programming fault
- •Faulty body control module preventing learn-mode exit
B3031 on Pontiac by Model
Pontiac G6(1 issue)
- Passlock anti-theft no-start (security light on)2005-2010
The G6's Passlock theft-deterrent system can falsely trip, illuminating the security light and preventing the engine from starting. The common cause is a worn ignition lock cylinder/Passlock sensor that fails to read the lock rotation correctly. The well-known 10-minute relearn trick only resets it temporarily; the fault usually returns until the cylinder/sensor is replaced.
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View B3031 across all makes →Frequently Asked Questions
What does B3031 mean on Pontiac?▼
B3031 stands for "Security System Controller in Learn Mode." B3031 is a manufacturer-specific body code (common on GM vehicles) indicating the body control module has entered, or is stuck in, the security/anti-theft key learn mode. It is often an informational status rather than a true failure, set automatically while a coded key is being programmed and cleared once learning completes. It only indicates a real fault if the module fails to exit learn mode, which can disable starting and illuminate the security indicator. On Pontiac specifically, this code is documented across 1 model.
What causes B3031 on Pontiac vehicles?▼
Common causes on Pontiac: Module currently in normal key-learning procedure (informational), Key programming not completed correctly, Failed key relearn / fewer than required keys learned, Faulty or unrecognized transponder key, BCM software or programming fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B3031 on a Pontiac?▼
Repair costs vary widely depending on the root cause and specific Pontiac model.
Which Pontiac models have B3031 documented?▼
Au7o has documented B3031 on 1 Pontiac model: G6.