- 2014, 2016 Single-source
Car and Driver's 2014 and 2016 ELR specification pages print "Engine Order Code LUU", gas/electric, 1.4L; GM's Chevrolet Volt order guide prints LUU as the Volt's 1.4L range-extender engine (same Voltec architecture, corroboration only); GM's 2014 Car & Truck Guide p.63 describes the ELR's onboard 1.4L gas-powered electric generator without printing a code
LUU Single-source
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of LUU in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.