C0455 on Chevrolet

Steering angle sensor fault (GM)

Severity: Severity not verified — if the car runs badly, have it inspected

The sources describe the fault and lamps but not drivability; stability control and steering input sensing are safety-critical, so have it checked.

It gets more serious if:

Stop: The red brake warning lamp comes on, the pedal feels soft or low, or steering assist is lost along with the ABS lamp.

Safety-critical system: explanation only, no DIY steps. Source: how we rate severity

This page covers only what differs on Chevrolet. For what C0455 means, the ranked causes and the test order, see the C0455 guide.

2007–2016 · Silverado 1500
Supported by vehicle data
GM PI0639C covers the connector fix for C0455 or C0710 on Silverado; a 2013 Silverado owner's dealer named the steering angle sensor. Bulletin currency not verified.
2005–2013 · Tahoe
Supported by vehicle data
GM PIT4225F and 3599 cover Service Stability messages with C0455. Bulletin currency not verified.
2005–2013 · Suburban
Supported by vehicle data
GM bulletins PIT4225F and 3599 cover the Suburban; a 2007 Suburban repairer found the sensor faulty and the part unavailable in 2021. Bulletin currency not verified.

PI0639C (chevrolet)Status unverified
Service Stabilitrak message and DTC C0455 or C0710
2007–2016silverado-1500 · NHTSA 10112287
Apply dielectric grease and adhesive shim stock to the steering angle sensor connector.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PIT4225F (chevrolet)Status unverified
ABS lamp then Service Stability message, C0710 and maybe C0455
2007–2013tahoe, suburban · NHTSA 10112551
Make sure the steering wheel is properly installed on the shaft.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
3599 (chevrolet)Status unverified
Stability system disabled or Service Stability message with C0455
2005tahoe, suburban, avalanche · NHTSA 10017099
Bulletin summary names C0455 behind the message.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

GM PI0639C: Service Stabilitrak message and DTC C0455 or C0710, steering angle sensor connector — General Motors via NHTSA
NHTSA complaints ODI 10724228 (Silverado) and 11427758 (Suburban) — NHTSA ODI
GM PIT4225F: ABS lamp then Service Stability message, C0710 and possibly C0455 — General Motors via NHTSA
GM 3599: stability system disabled or Service Stability message with C0455 — General Motors via NHTSA

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error