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.
Keyless operation does not work (LOCK, UNLOCK, PANIC)
- If the LOCK and UNLOCK buttons work OK, but the PANIC button does not, see the troubleshooting for The horn does not sound and/or the headlights do not flash when the PANIC button on the transmitter is pressed (see DOORS WILL NOT UNLOCK (OR LOCK) WITH THE TRANSMITTER, BUT WILL UNLOCK (OR LOCK) WITH THE DOOR LOCK SWITCH AND THE DOOR KEY CYLINDER SWITCH ).
- Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, refer to the B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ), and troubleshoot the indicated DTC(s) first.
- Insert the key into the ignition switch, but leave the switch in LOCK (0).
- Open the driver's door, and listen for the key-in reminder beeper.
Does the beeper sound?
YES -Go to step 3.
NO -Test the ignition key-in reminder circuit, and recheck.
- Turn the ignition switch to ON (II).
- Try to start the engine.
Does the engine start?
YES -The immobilizer system is OK, go to step 5.
NO -Go to the immobilizer symptom troubleshooting (see SYMPTOM TROUBLESHOOTING INDEX ).
- Turn the ignition switch to LOCK (0).
- Do the transmitter test, (see TRANSMITTER TEST
).
Is the transmitter OK?
YES -Replace the immobilizer-keyless control unit (see IMMOBILIZER-KEYLESS CONTROL UNIT REPLACEMENT ).
NO -Replace the transmitter.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.