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Park Lock Cable

  1. Place gearshift lever in Park position and remove ignition key. Remove cup holder/ashtray assembly. Lift lock tab on park lock cable end. See Fig 1 . Depress gearshift lever button quickly 3 times to set starting position of cable. Using a sharp pencil, mark starting position on slider.
  2. NOTE: Adjustment may move when lock tab is pushed. Proper operation must be verified prior to reassembly.
  3. Using a feeler gauge for adjustment, move park lock cable towards shifter base .049" (1.25 mm). Push lock tab of park lock cable end to set position.
  4. With ignition switch turned to LOCK position and gearshift lever in Park position, attempt to shift out of Park position. Gearshift lever should not move. Turn ignition switch to ON position. Gearshift lever should be allowed movement from Park position. Place gearshift lever in any position except Park position. Ignition switch should not be able to be turned to LOCK position and key should not be removable. Place gearshift lever in Park position. Ignition switch should be able to turn to LOCK position and ignition key should be removable.
  5. If park lock cable does not operate as specified, readjust cable. Check gearshift cable adjustment. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Install cup holder/ashtray assembly.
Fig 1: Identifying Park Lock Cable Components
G95B13715Courtesy of GENERAL MOTORS CORP.