1991 Buick LeSabre Smart Keyless Entry Remote Fob

Important Notice: The 1991 Buick LeSabre does not support onboard programming for keyless entry remote fobs. Programming a new remote requires specialized diagnostic tools and must be carried out by a qualified automotive technician.

Programming Procedure:

• Step 1: Confirm that you have the correct replacement remote fob compatible with your 1991 Buick LeSabre.
• Step 2: Ensure all existing remotes and vehicle keys are available and brought to the programming appointment.
• Step 3: Transport the vehicle to a qualified automotive technician if it is drivable. Doing so may reduce service costs compared to mobile assistance.
• Step 4: The technician will connect specialized diagnostic equipment to your vehicle's onboard system via the diagnostic port.
• Step 5: Once connected, the system will access the vehicle’s remote key programming mode and add the new fob.
• Step 6: After successful programming, the technician will test all functions of the newly programmed remote to confirm full operation.
• Step 7: Additional remotes, if available, can be programmed during the same session using the same method.

Additional Considerations:

Proof of ownership may be required for key or remote programming. If all keys or remotes have been lost, a replacement key may also need to be cut and coded before fob programming. Always verify that the technician has experience with older Buick models to ensure compatibility and successful programming.