1999 Mercury Mountaineer Owner Guide 1st Printing - Page 112
1999 Mercury Mountaineer Manual
Page 112 highlights
Controls and features If you wish to erase your personal code, use the following instructions: Erasing personal code 1. Enter the factory-set code. 2. Press 1/2 within five seconds of step 1. 3. Press the 7/8 and 9/0 controls at the same time within five seconds of step two. The system will now only respond to the factory-set code. 1 2 3 4 5 6 7 8 9 0 Unlocking the doors with the keyless entry system To unlock the driver's door, enter either the factory-set code or personal code (each digit pressed within 5 seconds of the prior digit). The interior lamps will illuminate. To unlock all doors, enter the factory-set code or personal code 1 2 3 4 5 6 7 8 9 0 (driver door unlocks) and press the 3/4 control within 5 seconds. Locking the doors with the keyless entry system To lock all the doors, press 7/8 and 9/0 at the same time. It is not 1 2 3 4 5 6 necessary to first enter the keypad code. 7 8 9 0 112