Regenerative Braking System Malfunction
2007-2007 Cadillac SRX 3.6L V6
The 2007 Cadillac SRX is equipped with a 3.6L V6 engine. Below you'll find detailed c0150 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
General fault in the regenerative braking system that recovers energy during deceleration.
Symptoms
- Regenerative braking warning light
- Reduced fuel economy
- Braking feel changes
- Battery not charging during braking
Common Causes
- Hybrid battery state-of-charge issue
- Inverter malfunction
- Motor-generator fault
- Communication error between brake and hybrid modules
Diagnostic Steps
- Check hybrid battery SOC and health
- Scan hybrid powertrain module for related codes
- Test motor-generator output during braking
- Verify CAN communication between brake and hybrid modules
- Check for high-voltage isolation faults
Repair Notes
Diagnose hybrid powertrain system. Regenerative braking requires a healthy battery and motor-generator system.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0025LF Wheel Speed Sensor Circuit Intermittent
C0150 on Other Vehicles
Common Questions
What does code C0150 mean on a 2007-2007 Cadillac SRX?
C0150 stands for "Regenerative Braking System Malfunction". General fault in the regenerative braking system that recovers energy during deceleration.
What are the symptoms of C0150 on a Cadillac SRX?
Common symptoms of C0150 include: Regenerative braking warning light, Reduced fuel economy, Braking feel changes, Battery not charging during braking.
What causes C0150 on a 2007-2007 Cadillac SRX?
Common causes of C0150 include: Hybrid battery state-of-charge issue, Inverter malfunction, Motor-generator fault, Communication error between brake and hybrid modules.
Last updated: March 2026