Software Incompatibility with Cruise Control Module
2002-2002 Cadillac Escalade 6.0L V8
The 2002 Cadillac Escalade is equipped with a 6.0L V8 engine. Below you'll find detailed u0304 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Software incompatibility with the cruise control system causing data errors.
Symptoms
- Cruise control erratic
- Adaptive cruise not engaging
- Speed set point drifting
- Cruise control disabling unexpectedly
Common Causes
- Cruise module software outdated
- Software conflict after update
- Module version mismatch
Diagnostic Steps
- Check cruise control module software version
- Update module software
- Check for known software conflicts
- Verify module compatibility
Repair Notes
Update cruise control module software to version compatible with other vehicle modules.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0304 on Other Vehicles
Common Questions
What does code U0304 mean on a 2002-2002 Cadillac Escalade?
U0304 stands for "Software Incompatibility with Cruise Control Module". Software incompatibility with the cruise control system causing data errors.
What are the symptoms of U0304 on a Cadillac Escalade?
Common symptoms of U0304 include: Cruise control erratic, Adaptive cruise not engaging, Speed set point drifting, Cruise control disabling unexpectedly.
What causes U0304 on a 2002-2002 Cadillac Escalade?
Common causes of U0304 include: Cruise module software outdated, Software conflict after update, Module version mismatch.
Last updated: March 2026