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Home >> GMC >> 1982 >> Magnavan Automatic Trans, Trans Mfr CD 400/M40 >> Repair and Diagnosis (Single Page) >> General Information >> Maintenance Reminder Light (Reset Procedures) >> Tire Pressure Monitor System Reminder >> TPMS Reminder Reset - Procedure 17 >> Notes
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TPMS Reminder Reset - Procedure 17: Notes

NOTE: When a spare tire is mounted, a wheel is replaced or rotated, or tire pressure has been adjusted, TPM system will need to be recalibrated.
NOTE: When the low tire pressure warning messages appear, immediately check air pressure of all tires and adjust to the specified pressure. If warning messages are still displayed, there is a malfunction in the TPM system. See appropriate manufacturer service information.
NOTE: Under the following conditions, the system may not function properly:
  • More than one tire is low.
  • Only one tire is replaced with a new tire during service.
  • Vehicle is moving faster than 65 mph (105 km/h).
  • The system is not yet calibrated.
  • Tire treadwear is uneven.
  • Compact spare tire is installed.
  • Tire chains are being used.
  • Vehicle is being driven on a rough or frozen road.
  • If ABS warning light is on.
CAUTION: DO NOT recalibrate TPM system until all problems are fixed and tire pressure in all 4 tires has been adjusted. If recalibration is done when tire pressures are incorrect, TPM system will not work properly and may not set an alert when a tire pressure is low or high.
NOTE: There are 2 ways to recalibrate the Tire Pressure Monitor (TPM) system:
  • Using DIC Reset Button  (if no scan tool is available)
  • Using Scan Tool  (if an OBD-II compatible scan tool is available).