One problem related to headlights has been reported for the 1999 GEO Prizm. The most recently reported issues are listed below.
Vehicle owners manual does not provide specific instructions as to how to adjust the headlamp along the horizontal axis(horizontal adjustment) or vertical axis (vertical adjustment) if the headlamp deviates from the nominal adjusted position or the correct aimed position. This may prove to be fatal if the vehicle owner drives the vehicle with headlamps unadjusted especially in rural areas of the country.