GMC Sierra
C1201
The C1201 code in your 2019-present GMC Sierra T1XX indicates a problem within the steering system, specifically related to communication between the Electronic Power Steering (EPS) system and the vehicle's control modules.
1 SolutionC-CodeChassis
C
Error Code Type
Chassis
Components
1 affected
Steering
Symptoms
5 common
- •Check engine light illuminated
- •Steering feel is heavy or unresponsive
- •Power steering assist fluctuates or fails intermittently
- +2 more
Most Affected Generations
1 generation
T1XX
1
Top Affected Components
1 component
Steering
1
Severity Levels
1 level
high
1
Quick Facts
1
Total Solutions
1
Affected Components
5
Common Symptoms
1
Generations
All Solutions
Showing 1 of 1 solution for error code C1201 across all generations.