2000 Saturn LS1 L4-2.2L VIN FFACTORY OEM SERVICE PROCEDURE

Keyless Entry Transmitter Battery: Service and Repair

NOTE:
^ Use of the wrong battery size may damage the transmitter. The correct battery can be obtained by calling Digikey at 1-800-344-4539.
^ When removing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter(s).

IMPORTANT: If the transmitter(s) won't work, perform the "RKE SYSTEM CHECK" before replacing the battery. Also, before replacing the battery in the transmitter(s), make sure that the battery is touching both the negative and positive contacts inside of the transmitter(s).

Factory service manual diagram



For battery replacement, use a Panasonic type CR2032, 3-volt battery, or equivalent.
1. Use a small coin, or flathead screwdriver, to separate bottom of transmitter from top.
2. Remove circuit board from transmitter housing and key pad by pressing on the "LOCK" button.

NOTE: Do not use sharp objects to help slide the battery out of the clip. this may result in damage to the circuit board.

Factory service manual diagram



3. Remove the battery by sliding the battery out of the battery clip. This may require a push from the back side of the clip.

Factory service manual diagram



4. Replace battery with new one making sure that the (+) side of battery faces away from the circuit board.
5. Reassemble the circuit board and key pad, and replace them in the transmitter housing which does not contain the key pad openings.

NOTE: Be careful not to pinch the key pad while closing the housing.

Factory service manual diagram



6. Line up and replace the lower housing by snapping the upper and lower housings together.
7. Test the operation of the transmitter with the vehicle by pressing and holding the "LOCK" and "UNLOCK" buttons for 7 or more seconds. This is required to reestablish communications with the vehicle.

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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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