1998 GMC Suburban

<h1>1998 GMC Suburban – Keyless Remote Fob Programming Procedure</h1> If you need to add or reprogram keyless entry remotes for your 1998 Suburban, you can do so using the vehicle’s onboard diagnostic system. This guide walks you through the process step-by-step. What You’ll Need A jumper wire (a fused wire is recommended for safety) Access to your vehicle’s OBDII diagnostic port All keyless remotes you want to program (have them ready before starting) Step-by-Step Instructions <ul> <li>Step 1: Locate the OBDII Data Link Port under the driver’s side dashboard. This is a rectangular connector typically found to the left of the steering column beneath the dash. Although not labeled, it contains 16 cavities. Refer to a diagram to identify pin 8 (top row, far left) and pin 4 (bottom row, third from the left). </li> <li>Step 2: Use the jumper wire to connect pin 8 to pin 4 on the OBDII port. Leave the wire in place throughout the entire programming process. Once the connection is made, the vehicle should respond within a few seconds by cycling the door locks—they will lock and then unlock automatically. This signals the system is ready to program remotes. </li> <li>Step 3: Take your first remote and press and hold the LOCK and UNLOCK buttons simultaneously. Hold both buttons down for about 15 seconds. When the doors lock and unlock again, that remote has been successfully programmed. </li> <li>Step 4: If you have more remotes to program, repeat Step 3 for each remote within one minute. You can program multiple remotes during this session, but each one must be completed within 60 seconds of the previous. </li> <li>Step 5: Once all remotes have been programmed, remove the jumper wire from the OBDII connector to exit programming mode. Test the Remotes Try each remote you programmed to confirm it locks and unlocks the doors as expected.</li> </ul>

1998 GMC Suburban

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