2006 Mercury Grand Marquis problems & reliability
143 owner complaints filed with NHTSA for the 2006 Mercury Grand Marquis, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (9 injured).
Federal crash records (FARS 2020–2023): 2006 Mercury Grand Marquis vehicles were involved in 26 fatal crashes with 17 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Air Bags | 37 | 26% |
| Vehicle Speed Control | 37 | 26% |
| Seat Belts | 22 | 15% |
| Steering | 13 | 9% |
| Fuel/propulsion System | 11 | 8% |
| Electrical System | 8 | 6% |
| Engine | 8 | 6% |
| Service Brakes, Hydraulic | 8 | 6% |
| Structure | 8 | 6% |
| Exterior Lighting | 6 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 66,000 miles (middle 50% between 38,000 and 99,300 miles), based on 113 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2006 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the driver’s side exhaust manifold shield fell into the steering linkage and caused the vehicle to run over a bush. There was no crash or injuries reported. The vehicle was taken to a certified mechanic, but…”
Steering · filed Jul 23, 2026
“5/9/2021 The SRS dashboard light came on with a bell warning. Bell quits after a short time but the light stays on solid. When turning ignition on, light and bell comes on, blinks 3 times, does this 6 times and then stays on solid. When driving hear bell for 5 times, this repeats later for a total of 5 times. After…”
Air Bags · filed Aug 8, 2025
“The contact owns a 2006 Mercury Grand Marquis. The contact stated that while stopped at a stop sign and attempting to accelerate, the vehicle failed to accelerate as intended. The contact stated that there was a loud clanking sound coming from the vehicle. The vehicle was towed to an independent mechanic where it was…”
Power Train · filed Jan 23, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Steering Column Shaft Obstruction
Preliminary Evaluation PE14021 · opened Jul 7, 2014 · closed Nov 21, 2014
Technical service bulletins
20 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2006 Mercury Grand Marquis. The 10 most recent:
This SKU is a Radiator Fan. The customer communication requested return of unsold inventory to inspect the electrical connections. An electrical connection issue may lead to the fan not working potentially throwing a…
DOR-L2Q6V-10 · Service Bulletin/Repair Instructions · issued Sep 18, 2019
Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel…
TSB 19-2026 · Service Bulletin/Repair Instructions · issued Feb 7, 2019
Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel…
TSB 19-2026 · Service Bulletin/Repair Instructions · issued Feb 7, 2019
The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a…
SSM 46085 · Service Bulletin/Repair Instructions · issued Sep 21, 2016
Inpected or repaired under 13R01 - Requests for recall service action under 13S08
TSB160072 · Service Bulletin/Repair Instructions · issued Apr 21, 2016
For 2005-2012 Crown Victoria, 2005-2011 Grand Marquis and Town Car vehicles, Regional Program 13R01 applies to vehicles not registered in corrosion states and not included in Safety Recall 13S08, where operation in high…
16-0072 · Service Bulletin/Repair Instructions · issued Apr 21, 2016
Ford: the lower intermediate steering shaft, has corrosion of swing link joints, combined with collapsed upper intermediate steering shaft, resulting in steering column separation and loss of steering control. Model…
RP-13R01 · Service Bulletin/Repair Instructions · issued Sep 16, 2014
Ford/lincoln/mercury: if battery was disconnected or dead, vehicles/trucks may experience hard starts and engine idle rpm fluctuation and exhibit diagnostic trouble codes (dtcs) p0505, p0506, p2111 and p2112. *pe
TSB-12-7-4 · Service Bulletin/Repair Instructions · issued Jul 10, 2012
Ford/mercury/lincoln: vehicles may exhibit one or more of the following symptoms: drive away hesitation, loss of rpm on deceleration, difficulty starting, and/or idle rpm less than desired. The f53 motorhome chassis is…
TSB-08-18-2 · Service Bulletin/Repair Instructions · issued Jun 1, 2009
Ford: engine cooling fan control relay part availability. *pe
SI-19982 · Service Bulletin/Repair Instructions · issued Oct 1, 2007
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2006 Mercury Grand Marquis has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2006 Mercury Grand Marquis?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 66,000 miles — budget accordingly if the car is approaching that mileage.