Volvo 740 1991 Owner's Manual page 9

Volvo 1991 740 Model
of the brake pedal. The on/off switching of ABS modulator may also be audible. This is normal. Please
be aware that ABS does not increase the absolute braking potential of the vehicle.
Shift indicator light
(Manual transmission cars only)
The Volvo shift indicator light (S.I.L.) is a device designed to help you get even better gas mileage from
your Volvo car. Studies have shown that the best fuel economy is obtained by shifting gears at low
engine rpm and high relative engine load. The Volvo S.l.L. is calibrated to show you when to shift for
improved mileage without sacrificing smooth acceleration.
Use of the S.I.L. is simple. Shift to the next higher gear as soon as the light comes on. You may find
after using the S.I.L. for some time that your natural shifting rhythm will adapt to the S.I.L's suggestion.
Some drivers may even shift before the light comes on.
Obviously, there will be times when you need to shift later than the light would indicate, for example,
when climbing hills or trailer towing. Using the light regularly, however, should result in a mileage
improvement of six percent or more. depending on how you normally drive.
Supplemental Restraint System (SRS)
If the light comes on (or stays on after the vehicle has started), the SRS diagnostic system has detected a
fault. Drive to an authorized Volvo dealer for inspection. (See section "SRS" for further information.)
Programming instructions for shift indicator
If the current supply to the control unit is cut (battery disconnected), the control unit will have to be re-
programmed as the control unit memory will be erased.
Drive the car in each gear, first gear not necessary, for approximately 8 seconds.
The gear change indicator light will flicker once (0.5 seconds), as each gear is programmed.
NOTE : Remember the foot completely from the clutch pedal after each gear change when
programming the control unit.
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