NHTSA (USA)Critical
1999 GMC B7NHTSA Campaign #99V320000
The official notice
Defect
VEHICLE DESCRIPTION: MEDIUM DUTY CONVENTIONAL CAB TRUCKS AND SCHOOL BUS CHASSIS EQUIPPED WITH AN AUTOMATIC TRANSMISSION, HAVE TRANSMISSION SHIFT CABLE END RODS THAT HAVE NOT BEEN CRIMPED TO THE PROPER SPECIFICATION. OVER TIME, THE SHIFT CABLE COULD BE PULLED OUT OF THE ROD END CAUSING THE DRIVER TO LOSE THE ABILITY TO MANUALLY CHANGE TRANSMISSION GEARS.
Safety Risk
WITH THIS CONDITION, THE VEHICLE MAY MOVE IN A DIRECTION NOT ANTICIPATED BY THE DRIVER, INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL INSTALL A NEW SHIFT CABLE.
Updated June 10, 2026