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  1. #1

    Default 2001 Suburban interior lights won't shut off - which module to replace?

    Hi all,

    Scanned through the forums for my problem and it sounds like other people have had it. I have a 2001 Suburban LS and my issue is the interior lights stay on and only turn off after the car has been off and the 20 minute accessory power-down kicks in. The dome override switch has no effect. I am pretty sure that the driver door switch is working (the door that gets 99% of the use) because the accessory power to the radio shuts off when I open the driver door. I did take off the battery ground for a minute to reset the system but the problem remains. Lights come on and stay on while I am driving. Is there anything else I can try? I saw someone mention the courtesy light module and/or a 30 second delay module...... Which is the bum part? Is it difficult to get to and replace? Where is it? Expected cost? Thanks alot for any assistance!

  2. #2


    For those that may have the same symptom, the problem wound up being a bad BCM relay under the dash on the drivers side and a bad wire. Relay was $31. My shop found it. BCM was fine. If it was the BCM, cost would've been ~$200 for a rebuild BCM plus $75 to program it.

  3. #3


    I would check your dimmer switch. It could have gone bad and is causing the light to stay on.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors,
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

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