I installed in fronts on my '17 Impala cost too much for two wasn't going to waste more on four. Came with a wiring harness and ground that "T's into an existing connector to work with door/dome lighting, butts against the rubber door seal and wiring goes under the seal and through the rocker channel. Haven't seen the ones for the Traverse....length may not accommodate the rear sill plate and may have to splice if not an electrical connector/tap for access. Have dealer print off the instruction set to see if you wish to tackle andif rears are feasible.
Wasn't worth the trouble for my Redline and don't need it with the stock puddle lights under the mirrors. Went with the unlit stainless steel stick-ons.
Current Chevys -'19 Silverado RST;'18 Malibu LT Redline;'18 Traverse Premier Redline<br /><br />Previous Chevys:16 Silverado LT;16 Malibu LT2;'17 Impala;'16 MalibuLT;'15 Camaro LS;'15 Traverse; '13,'12 and '07 Avalanche LTs; '11 Tahoe LT; '13 &'11 Malibu LTs; '08 Trailblazer;'06 Colorado WT..... Chrysler era.....'80 Citation;'75 Impala;'72 Chevelle;'69 Camaro R/T;'65 Impala SS;'62 Nova