WenmarOpen by Wenmar Pro

Service bulletins for the 1999 Mercury Grand Marquis

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

138 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
0421072005-04-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
042172005-04-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GENERAL POWER TRAIN CONTROL MODULE (PCM) PROGRAMMING PROCEDURES. *TT
178102004-08-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION FAILURE WHERE THERE IS A LARGE AMOUNT OF METAL OR DEBRIS IN THE PAN. *TT
032612004-07-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. NEW SERVICE PART - NUMBER 5 NEEDLE BEARING AND RACE KIT - 4R70W TRANSMISSION - SERVICE TIP. *TT
021362002-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH. ON SOME VEHICLES, THE BRAKE SHIFT INTERLOCK MAY BE INOPERATIVE, NOW ALLOWING THE OPERATOR TO MOVE THE SHIFT LEVER FROM THE PARK POSITION. STOP LAMP OPERATION MAY ALSO BE AFFECTED. *TT
011812001-11-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH. BRAKE SHIFT INTERLOCK.*JB
011372001-09-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES EQUIPPED WITH A 4R70W AUTOMATIC TRANSMISSION MAY EXHIBIT A CLUNK NOISE DURING THE 2-1 DOWNSHIFT EVENT. *TT
0023102001-03-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. SUBJECT REGARDING CONTAMINATION FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM. *TT
991522001-01-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INFORMATION ON THE NEW FLUSH AND FILL TOOL AVAILABLE THROUGH ROTUNDA. *TT
127042000-11-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SUBJECT REGARDING ALL VEHICLES REQUIRES A PARAMETER RESET TO BE PERFORMED ON THE PASSIVE ANTI-THEFT SYSTEM MODULE (PATS / VIC / HEC) WHEN THE POWERTRAIN CONTROL MODULE (PCM) IS REPLACED. *TT
9851662000-06-20. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. SOME VEHICLES MAY EXHIBIT A POPPING / TICKING NOISE WHEN THE CAR IS SHIFTED FROM REVERSE TO FORWARD GEAR. *TT
991471999-11-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). INFORMATION ON USING THE SERVICE BAY TECHNICAL SYSTEM (SBTS) AND NEW GENERATION STAR (NGS) TESTER, AND TO UPDATE THE POWERTRAIN CONTROL MODULE (PCM) INFORMATION CHARTS. *TT
99431999-05-11. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE; POWER TRAIN. INFORMATION REGARDING REPROGRAMMING POWERTRAIN CONTROL MODULES (PCMS). *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.