Checking Chevy Bolt for A/C leaks

Technicians may find DTC P0534 set and the Service Vehicle Soon message displayed on 2022 Chevy Bolt EV or EUV vehicles.
Oct. 17, 2025

Technicians may find DTC P0534 set and the Service Vehicle Soon message displayed on 2022 Chevy Bolt EV or EUV vehicles. This condition may occur without a customer concern of A/C performance and without the presence of any leaks in the system. The cause may be a glitch in the K114B Hybrid/EV PCM 2 software that sets the DTC. 

If no leaks are detected in the A/C system and the A/C system appears to be functioning properly, update the K114B PCM 2 with the latest software. 

About the Author

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of  specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

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