GMC Sierra
U1000
The U1000 code indicates a communication error in the vehicle's network, which can occur in a 2019-Present GMC Sierra T1XX. This error suggests that the control modules are unable to communicate effectively, potentially leading to various operational issues.
3 SolutionsU-CodeNetwork
U
Error Code Type
Network
Components
1 affected
Electrical
Symptoms
10 common
- •Check engine light illuminated
- •Loss of communication with multiple modules
- •Inconsistent performance of electrical components (e.g., windows, locks)
- +7 more
Most Affected Generations
1 generation
T1XX
3
Top Affected Components
1 component
Electrical
3
Severity Levels
2 levels
high
2
medium
1
Quick Facts
3
Total Solutions
1
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 3 of 3 solutions for error code U1000 across all generations.