What C0545 means
VIN not programmed or incompatible in Brake System Control Module (BSCM).
Written from public technical sources and not yet checked by a mechanic. How we write these pages
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
- VIN not programmed after BSCM replacement Most likely
How to diagnose C0545
- Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
- Inspect the parts involved: bscm.
- Work through the causes above from most to least likely, cheapest checks first.
- Clear the code and drive a full drive cycle to confirm the repair held.
Vehicles that report C0545 most
| Vehicle | Years | Reports | Share | Median miles |
|---|---|---|---|---|
| Chevrolet Malibu | 2004–2020 | 19 | 89k | |
| Chevrolet Colorado | 2015–2016 | 19 | 68k | |
| GMC Canyon | 2015–2016 | 11 | 54k | |
| Pontiac G6 | 2005–2010 | 8 | 68k | |
| Saturn Aura | 2009 | 3 | 85k |
Counts of owner complaints to the NHTSA that mention C0545 (65 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.
Reading the code
- C
- Chassis
- 0
- Generic (SAE) code
- 545
- Specific fault
Questions drivers ask
Can I drive with code C0545?
Drive carefully and get it checked soon. Chassis faults can affect braking, steering or four-wheel drive. If the car handles or brakes differently than usual, stop.
Often reported together
Codes that owners mention in the same NHTSA complaints as C0545. They can point to a shared cause, so it's worth checking them together.
This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.