GM began switching to the low-GWP refrigerant R-1234YF in the early 2010s, and most of its new-vehicle lineup used 1234YF by the 2014 model year. The transition was gradual and varied by market and model.
Timeline of the transition
The following period-by-period overview shows how GM rolled out R-1234YF across its vehicles and markets.
- 2013 model year: Initial deployments of 1234YF on a limited set of GM models in select markets as part of a pilot phase.
- 2014 model year: Expanded adoption to more models and regions, driven by supplier readiness and regulatory alignment.
- 2015 model year: Broad rollout across a larger portion of GM’s new-vehicle lineup, with 1234YF becoming the norm on many standard models.
- 2016 model year and beyond: Near-complete transition in GM’s new-vehicle lineup; some exceptions persisted for regional fleets or special-use vehicles.
Conclusion: The switch occurred over several years, beginning in 2013 and reaching widespread adoption by 2014–2015, with regional differences and occasional service-only uses continuing beyond that period.
Why GM moved to 1234YF
R-1234YF offers a lower global warming potential than the older R-134a, aligning with tightening environmental regulations and market expectations. The move also reflected supplier readiness and the need to standardize refrigerant technology across GM’s global platforms.
Implications for owners and technicians
Owners may notice updated service procedures and a shift in the tools used to service air conditioning systems. Technicians need dedicated recovery and charging equipment for 1234YF, and retrofitting or replacing components may be required for older, R-134a-only systems.
Regional rollout and model examples
GM’s transition was not identical everywhere; regional regulations and supply chains influenced when specific vehicles adopted 1234YF.
- Europe: Early adoption on several models (often tied to EU regulations favoring lower-GWP refrigerants) during the 2012–2013 window.
- North America: Pilot deployments started around 2013, with broader inclusion in 2014–2015 as the product lineup shifted.
- Global: By 2016, a large majority of new GM vehicles used 1234YF, with some regional or niche applications still using 134a in certain markets or for service-only purposes.
Conclusion: While timelines varied by region and model, GM’s global strategy aimed for a cohesive shift to R-1234YF in its new vehicles during the mid- to late-2010s, with ongoing considerations for service and legacy fleets.
What this means for customers moving forward
For buyers and owners, the transition typically means a more environmentally friendly refrigerant in new GM vehicles and changes in service practices. When servicing older GM vehicles or non-GM vehicles, technicians should verify the refrigerant type and follow manufacturer guidelines for recovery, charging, and retrofit options.
Summary: General Motors began adopting R-1234YF in the early 2010s, with a phased rollout that culminated in widespread use by the mid-2010s. The shift varied by region and model, reflecting regulatory timelines and supplier readiness. By about 2014–2015, most new GM vehicles used 1234YF, while some older or regional fleets still encountered 134a in service or non-standard applications.