GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal 🢒 Body and Accessories 🢒 Seats 🢒 Heated Seats System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Set the driver seat heater switch to the LO position.
  2. Set the driver seat heater switch to the HI position.
    • The seat temperature will rise to approximately 37.5°C (98.5°F) and the LO indicator lamp will turn ON.
    • The seat temperature will rise to approximately 42.5°C (107.5°F) and the HI indicator lamp will turn ON.
    • The HI/LO temperature indicators are inoperative. Replace the driver seat heater switch. Front Seat Heater Element Replacement .
    • The heated switch illumination is inoperative. Interior Lights Dimming System Check in Interior Lighting.

2
  1. Set the passenger seat heater switch to the LO position.
  2. Set the passenger seat heater switch to the HI position.
    • The seat temperature will rise to approximately 37.5°C (98.5°F) and the LO indicator lamp will turn ON.
    • The seat temperature will rise to approximately 42.5°C (107.5°F) and the HI indicator lamp will turn ON.
    • The HI/LO temperature indicators are inoperative. Replace the passenger seat heater switch. Front Seat Heater Element Replacement .
    • The heated switch illumination is inoperative. Interior Lights Dimming System Check in Interior Lighting

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.