2021 GMC Sierra 1500
Mileage
55,062
Service Date
7/17/2025
Services Performed
- P0073 – Ambient air temp sensor circuit high voltage P2C7A – NOx catalyst efficiency below threshold bank 1 catalyst 2 P2C7A checkout states to repair other codes first. P0073 says to test circuit and sensor, but sensor is in passenger side rearview mirror which is missing 90% of hardware. 1st step is to replace mirror and recheck.
- DOOR MIRROR – Remove & Replace – Assembly,One Side – [Includes: R&I Door Trim Panel.] – [DOES NOT include refinishing (where applicable).]
TUCKER H. gave our service a 5 star review on 7/17/2025
