No reverse

Hi, I'm one of the auto experts on RepairPal's Car Genius team! Sorry to hear you are having transmission issues! On your 2014 Buick Enclave a no reverse condition while all other gears work normally typically points to an internal transmission issue. The reverse clutch pack or reverse band are the most common culprits, as these are the components specifically responsible for reverse gear engagement and can wear out independently of the other gears. Low or degraded transmission fluid is always worth checking first as it's the quickest and easiest thing to rule out, and fluid condition can directly affect which gears engage properly. The absence of any stored codes unfortunately doesn't rule out internal transmission damage, as many mechanical transmission failures won't trigger a code the way electrical or solenoid issues would. I’d recommend having a qualified transmission shop do a proper diagnosis sooner rather than later, as continuing to drive without addressing this could potentially cause further damage. If you need any further advice or would like help finding a trusted RepairPal shop in your area or even getting an appointment booked, please feel free to call us at 877-913-1554 or check out https://repairpal.com/certified