1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 243

The driving modes required to reach the ready condition consist of a minimum of 30 minutes of city and highway driving as described below: u At least twenty minutes driving in stop and go, city type traffic with at least four idle periods. expressway or highway. u At least ten minutes of driving on an Before completing the above driving modes, the engine must be warmed up and at operating temperature. Once started, the vehicle must not be turned off during these driving modes. Lights and Bulb Replacement It is a good idea to check the operation of the following lights frequently: u headlamps u tail lamps u brakelamps u hazard flasher u high-mount brakelamp u turn signals u side markers u license plate lamps The alignment of your headlamps should be checked if: u oncoming motorists frequently signal you to u the headlamps do not seem to give you enough light to see clearly at night turn off your vehicle's high beams when you do not have the high beams on 244