Car Problem Reports

Lexus SC300 Heating and AC Control May Fail Intermintently

 
Lexus SC300 Problem
25 Reports
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Model Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Average Mileage: 155,043 mi (94,000 mi - 224,000 mi)

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There are reports of intermittent failures with the heating and air conditioning control. The digital display might fail or the control might fail to switch between heater functions.

  • dgoffner, , 170,000 mi
     Rookie

    Same issue, my display is blank for both heat and a/c and nothing is responding. I replaced the display and it is still the same problem. I finally decided to go to the local Lexus dealership and ask. I didn't much help but he recommended looking at the fan relay. I will update progress.

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  • Visitor, , 114,000 mi

    The air blows no heat or cold air come just outside air all the controls on the pannel work just not hot or cold?? help

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  • JBLACK23, , 170,000 mi
     Rookie

    When I turn on my A/C the light just flashes and blows warm (whatever temp it is outside, I live in Arizona so usually hot) air. My A/C was working fine as I was cruising down the highway and it suddenly gave out and started blinking and blowing "non A/C" air. Although I have to admit, it started a few hours after using a "tape" in the tape deck to play my iPod. I don't know if it's electrical or what. But I do know that the half the display screen is slightly dimmer. Any help would be much appreciated.

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  •  Rookie

    After owning the car for a week the problem started. The heater display goes blank, all functions with the heater/AC will stop. It will then come on again and work perfectly. This seemingly happens at random. Now the same thing is starting to happen with the stereo system.

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  •  Rookie

    I had the same problem there is a fuse under the steering wheel on the left we replaced a fuse (10A red) and the display began to respond again

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  • Visitor, , 224,000 mi

    can barely see th ac display. bottom half is dark.

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  • Visitor, , 132,000 mi

    Heater AC Control LCD display faded out. Replaced Control at junk yard w/SC400 control.

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  • 72 demon, , 150,607 mi
     Rookie

    heater display dead no heat or ac

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  • Visitor, , 114,000 mi

    Same issue

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  • Visitor, , 145,000 mi

    Digital controls for air and heat are not clear. Clouded by dark back round.

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