P2111 on Mercury vehicles
38 owner complaints filed with NHTSA about Mercury vehicles mention P2111 (Throttle Actuator A Control System - Stuck Open) - across 3 models. Below is where it shows up, by model and year.
Can you drive with it? Not far - a throttle plate that will not close means engine speed you do not fully control. The computer fights it with fuel cuts and limp mode; treat it as a tow-or-fix-today problem.
Symptoms, likely causes in order and realistic repair costs are on the main P2111 page - they do not differ much by brand. This page shows what is specific to Mercury: which models and years actually report it.
Mercury models reporting P2111
The number next to each year is how many NHTSA complaints for that car mention P2111. Owners rarely quote trouble codes when complaining, so real occurrence is many times higher - use these numbers to compare years, not as totals.
P2111 on other makes
Makes with enough NHTSA reports of P2111 for their own page.
Counts are NHTSA owner complaints whose text mentions P2111 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.