SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBUICK2015REGAL BASE, 2.0L ENG VIN X, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSEATSPOWER SEAT SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESLUMBAR SUPPORT MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2015 Buick Regal Base, 2.0L Eng VIN X, AWD

Circuit/System Verification

2015 Buick Regal Base, 2.0L Eng VIN X, AWDSECTION Circuit/System Verification
  1. Ignition ON.
  2. Verify the lumbar support pump turns ON when the lumbar support switch is pressed in the FORWARD direction. The lumbar support bladder should inflate until the bladder is 100% inflated or the switch is released.
    • If the pump does not turn ON or the bladder does not inflate 

      Refer to Circuit/System Testing

    • If the pump turns ON and the bladder inflates 
  3. Verify the lumbar support bladder deflates when the lumbar REARWARD switch is pressed. The bladder should deflate until it is 100% deflated or the switch is released
    • If the bladder does not deflate 

      Refer to Circuit/System Testing

    • If the bladder deflates 
  4. All OK.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.