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.
2012 Lexus LFAFACTORY OEM SERVICE PROCEDURE
Initializing The Tire Pressure Warning System
NOTE:
The tire pressure warning system must be initialized when the tire inflation pressure is changed from the currently set specification. Refilling the tire to specification after a low pressure incident does not require initialization.
- With the ignition switch OFF, Adjust the tire inflation pressure to the specified cold tire inflation pressure level.
- Turn the ignition switch to the ON position.
- Press and hold the tire pressure warning reset switch until the tire pressure warning light flashes slowly 3 times. See Fig 1.
- Wait for a few minutes with the ignition switch in the ON and then turn the ignition switch OFF.
NOTE:
Indications the initialization of the tire pressure warning system has failed:
- When operating the tire pressure warning reset switch, the tire pressure warning light does not flash 3 times.
- After carrying out the initialization procedure, the tire pressure warning light flashes for 1 minute then stays on after driving for 20 minutes.
Factory Service Tools
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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.
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