repaired · 2026 Q3
Body: door
NewRisk. The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
2012 Mci J4500Problems, recalls & complaints
NHTSA has logged 1 owner complaint about the 2012 Mci J4500, most often about the engine and engine cooling. It is covered by 7 safety recalls, and for recall 21V-737 the manufacturer reports only 5% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 10, 2025. Updated daily.
Complaints by system
Where the 2012 Mci J4500 has problems
1 complaint grouped by the system owners reported.
1Engine and engine cooling
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine and engine cooling | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
7 recalls
2012 Mci J4500 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2023 Q3
Equipment adaptive/mobility: wheelchair lift/ramp
Risk. In the event that a mobility device pushes into the outer barrier, the barrier may fail, increasing the risk of injury for the lift occupant.
repaired · 2023 Q1
Steering: hydraulic power assist system
Risk. Loss of steering control may increase the risk of a crash.
repaired · 2017 Q2
Seats
Risk. If the seatbelt anchorage assembly separates from the J-Bracket, the bus driver may not be properly restrained in the event of a crash increasing their risk of…
Show 3 more recalls
repaired · 2016 Q2
Front: anchorage
Risk. In the event of a crash, the seat may detach from its floor mounting, increasing the risk of injury to the occupant.
no report yet
Visibility: glass, side/rear
Risk. A TRANSOM WINDOW MAY DETACH WITHOUT WARNING, INCREASING THE RISK OF PERSONAL INJURY OR PROPERTY DAMAGE.
no report yet
Electronic stability control (ESC)
Risk. IF THE DRIVER IS SLOW TO REACT DURING THIS ESC INTERVENTION, THE VEHICLE MAY DEVIATE FROM THE INTENDED LINE OF TRAVEL, INCREASING THE RISK OF A CRASH.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mci.
Best & worst years
2012 vs. every other J4500 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the J4500 median. How we score
'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What J4500 owners report
Recent engine and engine cooling complaints filed with NHTSA, shortened. Personal details are removed.
THIS PROBLEM EXISTS ON AT LEAST 4 OUT OF 10, MCI MOTOR-COACHES MANUFACTURED FROM 2006 TO 2013. THE PROBLEM HAS NOT BEEN REPORTED NOR INVESTIGATED BECAUSE IT REMAINS UN-DETECTED DURING ROUTINE MAINTENANCE, COMPUTER DIAGNOSTICS OR BY ANY COMPANY MECHANICS. THE ISSUE ONLY BECOMES APPARENT AFTER…
Own a 2012 J4500?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.