P0929: Gear Shift Lock Solenoid/Actuator Control Circuit A Range/Performance
What to do
If the selector has become slow or reluctant to release from park, that is worth mentioning rather than working around — it usually gets worse rather than better, and it is a small repair now.
What this code means
The shift lock solenoid is responding, but not as commanded — releasing slowly, sticking intermittently, or not confirming its state. A solenoid that has begun to stick mechanically gives a selector that frees itself after a moment of pressure rather than immediately, which owners typically adapt to without reporting it until it fails outright.
Likely causes
Start here
- Faulty shift lock solenoid · moderate
- Faulty brake light switch · easy
Less common
- Corroded or loose connector · easy
- Liquid spilled into the gear selector · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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