Having problems with your 1997 Pontiac Bonneville ?
Can't get heater to work - 1997 Pontiac Bonneville
You may need to get a new thermostat. First, if you have not already, check your fuses. You may also turn your knob to the hot setting and turn on the Air Conditioner.
Repair Help & Product Troubleshooting for 1997 Pontiac Bonneville
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