2006 Mercury Montego cruise control problems
moderate 11 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
The failure pattern owners describe
Eleven 2006 Montego owners describe unintended acceleration as the dominant complaint. Most common: the vehicle lunges forward without throttle input when shifting into Reverse or Drive, or while stopped at lights—even with brakes fully applied. Several owners report this happens regularly (daily to multiple times per year) around 80,000 miles, making the car feel uncontrollable. A few owners specifically mention throttle body malfunction.
A related failure: during cruise control on downhill grades where no throttle input is needed, the engine cuts out entirely, leaving the driver without power. One owner pulled over safely after this happened.
Less frequent but notable: the vehicle gets stuck at 3500 RPM or surges violently when shifted into gear, especially Reverse. Engine must be shut off to regain control. Diagnostic codes P2106 and P061B appeared in one complaint. One dealer reset software and said this problem occurs rarely across all manufacturers but offered no guarantee against recurrence.
One owner reported the Montego enters limp mode when cruise is set on an incline, cutting power mid-drive.
No recalls or technical service bulletins are mentioned. Dealers either couldn't duplicate the problems or performed only software resets.
Same Mercury Montego cruise control reports on nearby years: 2005
Failure modes owners describe
Unintended acceleration when shifting or at stops
Vehicle lunges forward without throttle input during gear shifts (Park to Reverse or Drive), at traffic lights, or while parked. Owners report the car tries to force itself to move even with brakes firmly applied, and the problem recurs frequently—sometimes multiple times per year.
When: 80,000–82,300 miles reported; can happen daily or several times per year
Symptoms owners cite: Engine revs up when shifting into Reverse or Drive without throttle input; Vehicle lunges forward at traffic stops with brake pedal fully depressed; Sudden acceleration while parallel parking or pulling in/out of driveway; Brake pedal travels to floorboard without stopping the vehicle
Repairs/costs cited: One owner reported dealer reset software; problem could not be duplicated on other visits. No repairs documented in narratives.
Recalls/TSBs owners mention: No recalls identified by owners. Dealer stated the issue happens to all manufacturers rarely and could not guarantee it would not recur.
Engine stalling during cruise control on downhill grades
Engine shuts off unexpectedly while cruise control is engaged, particularly on slight downhill slopes where the vehicle does not require throttle input. Owner states sensor became confused and engine lost power.
When: Mileage not specified; single occurrence reported
Symptoms owners cite: Engine cuts out and dies during cruise control on downhill road; Sudden loss of engine power while in motion; Vehicle felt out of control before owner pulled over
Repairs/costs cited: Dealer reset software; advised problem is rare across manufacturers and could not guarantee recurrence would not happen.
Recalls/TSBs owners mention: Software reset performed at dealer
Throttle stuck or sticking at elevated RPM
Vehicle becomes stuck at 3500 RPM while driving or surges repeatedly when placed in gear. Engine must be shut off to stop the vehicle. Multiple owners attribute the issue to throttle body or accelerator pedal sticking.
When: Reported at 25 MPH; surging ongoing for a couple of years
Symptoms owners cite: Vehicle stuck at 3500 RPM while driving; Engine surges when placed in Reverse; Vehicle lunges with engine running rough; Engine dies after surging; Difficult brake control during surge events; Multiple restart attempts needed before normal idle
Repairs/costs cited: Dealer unable to duplicate problem on diagnostic visit despite two attempts.
Limp mode activation on inclines during cruise control
Vehicle enters limp mode when cruise control is set and the vehicle approaches or drives up an incline, limiting power and drivability.
When: Not specified
Symptoms owners cite: Vehicle enters limp mode when cruise is set on incline; Loss of power during cruise control on grade
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Common questions
How serious is the cruise control problem on the 2006 Mercury Montego?
It's a documented issue but not catastrophic. 11 complaints have been filed. Repairs average $600 and most owners catch it before it causes a breakdown.
At what mileage does the cruise control typically fail?
Across the 11 complaints that reported odometer mileage, most cruise control failures cluster between 51,000 and 94,500 miles, with the median around 80,000. A quarter of owners report trouble before 51,000; a quarter make it past 94,500. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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.