- 2022–2023 Factory-verified
all trims: O; dealer-installed; in PDY
RYT Factory-verified
Also described as LPO, first aid kit, with tri-shield logo on caseLPO, First aid kit
Also documented for CadillacChevroletGMC
Documented applications
- 2025 Factory-verified
O on all trims; includes tri-shield logo on the case
- 2025 Factory-verified
- 2025 Factory-verified
2025: all trims: O
- 2017–2019 Factory-verified
2019: Preferred, Sport Touring, Essence, Premium, Avenir: O
- 2018–2019 Factory-verified
2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide)
This page aggregates every documented appearance of RYT in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.