If diagnosis points to the need to replace a failed external tailgate release switch on 2019-2022 Sierra 1500, Sierra 2500/3500; Silverado 1500 and Silverado 2500/3500 models, including models equipped with the Chevrolet Multi-Flex tailgate or GMC MultiPro tailgate (RPO QK2), only the switch should be replaced, not the entire handle. (Fig. 2)
Fig. 2
The external tailgate release switch is available as an individual part in the Electronic Parts Catalog. Only order the part for the switch that has failed. (Fig. 3, #23) The handle should not be ordered for a switch failure. (Fig. 3, #24)
Fig. 3
The Chevrolet Multi-Flex tailgate and GMC MultiPro tailgate offer added flexibility and access to the cargo box with a primary gate and inner gate, both of which are released using two switches on the tailgate handle. (Fig. 4)
Fig. 4
The individual switches for the inner gate, upper switch (Fig. 5, #16), and primary gate, lower switch, Fig. 5, #18), are available. Unless there is a failure of the handle assembly, only the individual switch should be replaced.
Fig. 5
Excessive warranty repairs, including unnecessary parts replacement, may be debited.
TIP: If the inner gate is not functioning properly, check that it has not been disabled (possibly inadvertently) by the owner. Re-enable the inner gate and check operation before continuing with any diagnosis or repairs. To enable or disable the inner gate function, press and hold the upper button on the tailgate for 3 seconds until the tail lamps flash.
– Thanks to David MacGillis
