Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 79 (OBJECT DETECTION SYSTEM - PARK ASSIST SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPARKING ASSIST SYSTEM MALFUNCTIONCIRCUIT/SYSTEM TESTINGPARKING ASSIST SWITCH INDICATOR CIRCUIT MALFUNCTION
2013 Buick Regal Turbo Premium, Standard Trans
Parking Assist Switch Indicator Circuit Malfunction
2013 Buick Regal Turbo Premium, Standard TransSECTION Parking Assist Switch Indicator Circuit Malfunction
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, the X1 harness connector at the S48E Multifunction Switch Module - Center Console.
- Ignition ON, test for greater than 11 V between the ignition circuit terminal 3 X1 and ground.
- If less than the specified value, test the ignition circuit for a short to ground or an open/high resistance.
- Command the Park Assist Switch LED output control ON with the scan tool. Test for greater than 11 V between the ignition circuit terminal 3 X1 and the signal circuit terminal 6 X1.
- If less than the specified value, test the signal circuit for an open/high resistance. If all circuits test normal, replace the K41 Parking Assist Control Module.
- Command the Park Assist Switch LED output control OFF with the scan tool. Test for less than 0.3 V between the ignition circuit terminal 3 X1 and the signal circuit terminal 6 X1.
- If greater than the specified value, test the signal circuit for a short to ground. If all circuits test normal, replace the K41 Parking Assist Control Module.
- If all circuits test normal, replace the S48E Multifunction Switch Module - Center Console.
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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.