"THIS BULLETIN ANNOUNCES AVAILABILITY OF REPROGRAMMING FILES TO OPTIMIZE TRANSMISSION CONTROL MODULE (TCM) OPERATION AND ADDRESS THE FOLLOWING CUSTOMER CONCERNS: ENGINE RPM FLARE (SHARP RPM INCREASE WHEN CVT DOWNSHIFTS) WHEN USING CRUISE CONTROL ON UPHILL GRADES CANCELLATION OF CRUISE CONTROL AS A RESULT OF RPM FLARE (DRIVER MUST RESET DESIRED VEHICLE SPEED). THIS NEW LOGIC CHANGES THE CRUISE CONTROL SYSTEM OPERATION TO AVOID UNEXPECTED CANCELLATION. "
full bulletin at NHTSA ↗2016 Subaru Legacy cruise control problems
severe 8 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
When does it fail?
Of the 8 cruise control complaints filed for the 2016 Subaru Legacy, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Among the 11 model years of Subaru Legacy in our records for cruise control problems, this one ranks #3 by owner-complaint volume.
No new NHTSA cruise control complaint has been filed on this vehicle in over 4 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering cruise control on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
The contact owns a 2016 Subaru Legacy. The contact stated that while pulling into a parking space and pressing the brake pedal the vehicle suddenly experienced unintended acceleration and continued to drive forward causing the driver to lose control of the vehicle and crash into a pole. No injuries were reported and no police report was taken. The cause of the failure was not determined. The…
Common questions
How serious is the cruise control problem on the 2016 Subaru Legacy?
It's a meaningful issue. 8 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $600.
At what mileage does the cruise control typically fail?
Based on the 8 complaints filed, cruise control issues most often appear around 43,840 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $600 for cruise control repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to cruise control?
No active recalls currently cover cruise control issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.