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Service bulletins for the 1999 Mercury Cougar

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.

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

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Only bulletins with component: Throttle and cruise control are shown. Show all

Bulletins, newest first
134542000-11-28. Service bulletin. VEHICLE SPEED CONTROL. SUBJECT REGARDING THE SPEED CONTROL SWITCH VOLTAGE READINGS - SERVICE TIP. *TT
133992000-11-27. Service bulletin. VEHICLE SPEED CONTROL:LINKAGES. SOME VEHICLES WITH CD4E AUTOMATIC TRANSAXLE, MAY EXHIBIT AN OBJECTIONABLE SULFUR OR ROTTEN EGG ODOR FROM THE EXHAUST FOLLOWING AGGRESSIVE DRIVING, SUCH AS FULL-THROTTLE ACCELERATION. *TT
140772000-07-27. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES MAY EXHIBIT A ROUGH IDLE OR HESITATION AFTER A HOT SOAK AT APPROXIMATELY 30 MINUTES. **MR
85712000-07-26. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES MAY EXHIBIT A ROUGH IDLE OR HESITATION AFTER A HOT SOAK OF APPROXIMATELY 30 MINUTES. **MR
138662000-06-08. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. EXPERIENCING A HOOT NOISE FROM THE IDLE IDLE AIR BYPASS SOLENOID ON DECELERATION, USUALLY IN COLD AMBIENT TEMPERATURES. *TT
81282000-06-07. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES MAY EXPERIENCE A HOOT NOISE FROM THE IDLE IDLE AIR BYPASS SOLENOID ON DECELERATION, USUALLY IN COLD AMBIENT TEMPERATURES. THE IDLE SPEED MAY ALSO REMAIN SLIGHTLY HIGHER OR LOWER THAN DESIRED WHEN THIS NOISE IS PRESENT. *TT
80542000-06-07. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES EQUIPPED WITH A 2.5L ENGINE AND BUILT AFTER MAY 5, 1999 MAY EXHIBIT AN INTERMITTENT HARD / NO START, ROUGH IDLE OR HESITATION AFTER A HOT SOAK OF APPROXIMATELY 30 MINUTES. *TT
74302000-05-15. Service bulletin. VEHICLE SPEED CONTROL. INFORMATION REGARDING SPEED CONTROL SWITCH VOLTAGE READINGS - SERVICE TIP. *TT
129172000-05-12. Service bulletin. EQUIPMENT; VEHICLE SPEED CONTROL:LINKAGES. SOME VEHICLES MAY EXHIBIT A CONCERN IN ACTIVATING THE OCTAINE ADJUST FEATURE WHEN USING THE MODULE RECONFIGURATION METHOD. *TT

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