Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2012ALTIMA BASEREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSSECURITY CONTROL SYSTEM (WITH INTELLIGENT KEY) (SEDAN)SYSTEM DESCRIPTIONINTELLIGENT KEY SYSTEM/ENGINE START FUNCTIONSYSTEM DESCRIPTIONPRECAUTIONS FOR INTELLIGENT KEY SYSTEM
2012 Nissan-Datsun Altima Base
Precautions For Intelligent Key System
2012 Nissan-Datsun Altima BaseSECTION Precautions For Intelligent Key System
- In the Intelligent Key system of model L32, the transponder [the chip for NVIS (NATS) ID verification] is integrated into the Intelligent Key. (For the conventional models, it is integrated into the mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it cannot start the engine. Instead, the NVIS (NATS) ID verification can be performed by inserting the Intelligent Key into the key slot, and then it can start the engine.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.