TPMS Sensor Circuit - Spare Tire
2018-2018 Cadillac XT5 3.6L V6
The 2018 Cadillac XT5 is equipped with a 3.6L V6 engine. Below you'll find detailed b1004 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the spare tire TPMS sensor (vehicles equipped with spare tire monitoring).
Symptoms
- TPMS warning light on
- Spare tire pressure not monitored
- TPMS system fault indicator
Common Causes
- Dead spare tire sensor battery
- Spare tire sensor removed
- Spare tire replaced without sensor
- Sensor not programmed
Diagnostic Steps
- Check if vehicle monitors spare tire pressure
- Trigger spare sensor
- Verify sensor registration
- Inspect spare tire sensor
Repair Notes
Replace spare tire TPMS sensor if equipped. Some vehicles monitor spare tire pressure.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B1004 on Other Vehicles
Common Questions
What does code B1004 mean on a 2018-2018 Cadillac XT5?
B1004 stands for "TPMS Sensor Circuit - Spare Tire". Malfunction in the spare tire TPMS sensor (vehicles equipped with spare tire monitoring).
What are the symptoms of B1004 on a Cadillac XT5?
Common symptoms of B1004 include: TPMS warning light on, Spare tire pressure not monitored, TPMS system fault indicator.
What causes B1004 on a 2018-2018 Cadillac XT5?
Common causes of B1004 include: Dead spare tire sensor battery, Spare tire sensor removed, Spare tire replaced without sensor, Sensor not programmed.
Last updated: March 2026