Defect summary
SWITCHES MAY NOT ACTUATE THE SERVICE RESERVOIR LOW PRESSURE WARNING BUZZERS AND LIGHTS AT PRESSURES BELOW 60 POUNDS PER SQUARE INCH. CONSEQUENCE OF DEFECT: DRIVER WOULD NOT BE WARNED OF AIR BRAKE SYSTEM LOW PRESSURE AND LOSS OF BRAKE COULD BE EXPERIENCED WITHOUT WARNING.
Remedy
REPLACE LOW PRESSURE SWITCHES.
Notes
SYSTEM:AIR BRAKE SYSTEM RESERVOIR LOW PRESSURE BUZZER AND LIGHT SWITCH.VEHICLE DESCRIPTION:HEAVY DUTY TRUCKS.
Source: NHTSA ODI recalls file, campaign 89V101000. Text as published by NHTSA.