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 MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 185 (SEAT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1925 OR B2170DTC DESCRIPTOR

2006 Buick Terraza CXL, 3.5 L, AWD

DTC Descriptor

2006 Buick Terraza CXL, 3.5 L, AWDSECTION DTC Descriptor

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

This diagnostic procedure supports the following DTCs:

DTC B1925 02: Left Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B1925 05: Left Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
DTC B2170 02: Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05: Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open

RENDER: 1.0x

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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.