2010 Mercury Grand Marquis problems & reliability
24 owner complaints filed with NHTSA for the 2010 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.
4 complaints report injuries (4 injured).
Federal crash records (FARS 2020–2023): 2010 Mercury Grand Marquis vehicles were involved in 19 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 |
|---|---|---|
| Steering | 5 | 21% |
| Structure | 5 | 21% |
| Electrical System | 3 | 13% |
| Vehicle Speed Control | 3 | 13% |
| Air Bags | 2 | 8% |
| Equipment | 2 | 8% |
| Exterior Lighting | 2 | 8% |
| Power Train | 2 | 8% |
| Service Brakes | 2 | 8% |
| Engine | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash. Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash”
Unknown OR Other · filed Oct 22, 2025
“The contact owns a 2010 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, however, the vehicle failed to stop as intended. The contact stated that he had both feet on the brake pedal, however the vehicle did not stop. The vehicle independently…”
Service Brakes · filed Jul 26, 2024
“BRAKES: The Dashboard Brake Warning Lights are Illuminated most of the time. 1. The ABS warning Light is illuminated. 2. The Brake Warning Light is illuminated also. The Ford Dealership Service Dept cannot Fix it saying this is intermittent and attributed it to a loose wire connection located behind the Left driver…”
Service Brakes · filed Jul 11, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
17 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2010 Mercury Grand Marquis. The 10 most recent:
Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated…
SSM 54601 · Service Bulletin/Repair Instructions · issued Feb 24, 2026
All accessory stick-on keyless entry keypads come with a wallet card containing the master code. If the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the…
SSM 52476 · Service Bulletin/Repair Instructions · issued Apr 24, 2024
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
On vehicles equipped with an automatic transmission it is imperative that the converter pilot hub be greased with Motorcraft Multi-Purpose Grease Spray XL-5-A even if grease was not applied from the factory. Also verify…
SSM 47976 · Service Bulletin/Repair Instructions · issued May 10, 2019
Replacing the original equipment SYNC/Navigation system with either an aftermarket SYNC/Navigation kit or modifying original SYNC/Navigation parts to provide additional features is not recommended nor supported on any…
SSM 47201 · Service Bulletin/Repair Instructions · issued Mar 30, 2018
The Accessory (Wireless) Keyless Entry Keypad can only be used with vehicles that are factory built with Remote Keyless Entry (RKE). The master code for the Accessory (Wireless) Keyless Entry Keypad can be retrieved…
SSM 47009 · Service Bulletin/Repair Instructions · issued Jan 10, 2018
The Accessory (Wireless) Keyless Entry Keypad can only be used with vehicles that are factory built with Remote Keyless Entry (RKE). The master code for the Accessory (Wireless) Keyless Entry Keypad can be retrieved…
SSM 47009 · Service Bulletin/Repair Instructions · issued Jan 10, 2018
Replacing the original equipment sync/navigation system with either an aftermarket sync/navigation kit or modifying original sync/navigation parts to provide additional features is not recommended nor supported on any…
SSM 46332 · Service Bulletin/Repair Instructions · issued Jan 24, 2017
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
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 2010 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 2010 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.