Hard or delayed shifting
1 mentions · 12.5% of complaints
Median mileage: Unavailable (0 usable records).
Matching rule
\b(hard shift\w*|rough shift\w*|delay\w* shift\w*|shift\w* hard|jerk\w*|lurch\w*)\bU.S. public vehicle records
1991 Infiniti M30 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
8 owner complaints analyzed
1 distinct recall campaigns
Not available median reported failure mileage
Scope: 1991 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Owner-reported patterns
Most common problems
Electrical System is the most frequently named component, appearing in 4 of 8 complaints (50.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 1 | 12.5% |
| Electrical and battery issues | 1 | 12.5% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 4 |
| Engine And Engine Cooling | 1 |
| Engine And Engine Cooling:Exhaust System | 1 |
| Power Train:Automatic Transmission | 1 |
| Structure:Body:Door | 1 |
Electrical System: 4; Engine And Engine Cooling: 1; Engine And Engine Cooling:Exhaust System: 1; Power Train:Automatic Transmission: 1; Structure:Body:Door: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 8 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 1997 | 2 |
| 1998 | 2 |
| 2002 | 3 |
| 2004 | 1 |
1997: 2; 1998: 2; 2002: 3; 2004: 1
Pattern summary
Electrical System leads the component reports. Transmission and shifting appears in 1 complaint narratives. Electrical and battery issues appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 526286 · 1997-10-25 (October 25, 1997)
TRANSMISSION WAS SLIPPING AND LURCHING. *AK
Owner-reported narrative. Look up ODI 526286 at NHTSA ↗
Owner report 8020983 · 2004-09-29 (September 29, 2004)
ELECTRICAL PROBLEM. MR *TC
Owner-reported narrative. Look up ODI 8020983 at NHTSA ↗
Explore the data
Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
8 unique complaints in this selection. Analysis snapshot: 2026-10-01.
0.0%Usable mileage0 / 8 records
75.0%Valid incident date6 / 8 records
100.0%Valid filing date8 / 8 records
75.0%Ordered incident and filing dates6 / 8 records
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 1990 | 1991 | 1992 |
|---|---|---|---|
| Fuel System, Gasoline:Fuel Injection System | 333.3% | 00.0%No examples available for this selection. | 240.0%ODI 10015096THE VEHICLE EXPERIENCED THE SAME PROBLEM AS STATED IN RECALL#95I00600 -FUEL INJECTION, HOWEVER THE VEHICLE IDENTIFICATION NUMBER WAS NOT INCLUDED IN THE RECALL. *JB |
| Electrical System | 00.0%No examples available for this selection. | 450.0%ODI 8020979CONSUMER STATES WHILE SHE WAS AT THE POST OFFICE DEPOSTING A LETTER , SHE GOT OUT OF THE AUTOMOBILE AND WHEN SHE GOT BACK INTO THE AUTO SHE SMELLED SMOKED. AFTER THAT SHE BEGUN TO LOOK AROUND AND ACTUALLY SAW THE SMOKE, SHE STOPPED THE CAR. LATER SHE FOUND OUT THAT IS APPEARED TO BE ONE OF THE ELECTRICALLY BOXES IN THE TRUCK OF THE AUTO. NO INJURIES. MR | 00.0%No examples available for this selection. |
| Power Train:Automatic Transmission | 222.2% | 112.5% | 00.0%No examples available for this selection. |
| Air Bags | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 120.0%ODI 887751CONSUMER WAS TRAVELING ON HIGHWAY AND NOTICED ON DASHBOARD AIRBAG LIGHT WAS BLINKING OFF AND ON. SHE LOOKED AT HER MANUAL. MANUALTOLD HER TO CONTACT HER LOCAL DEALERSHIP. SHE DID, AND MECHANIC TOLD HER IT WOULD COST $1200.00. *AK |
| Engine And Engine Cooling | 00.0%No examples available for this selection. | 112.5% | 00.0%No examples available for this selection. |
| Engine And Engine Cooling:Engine | 111.1%ODI 538866EXHAUST MANIFOLD AND GASKETS CRACKED RESULTING IN LEAKING OF FUMES. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Engine And Engine Cooling:Engine:Gasoline | 111.1% | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Engine And Engine Cooling:Exhaust System | 00.0%No examples available for this selection. | 112.5% | 00.0%No examples available for this selection. |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 0 | None | No examples available for this selection. |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
1991: 0 complaints · 1992: 0 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 1991 | 0 | 0 | 0 |
| 1992 | 0 | 0 | 0 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 1991 | 6 | 2 | 0 |
| 1992 | 4 | 1 | 0 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component | Electrical System | Engine And Engine Cooling | Engine And Engine Cooling:Exhaust System | Power Train:Automatic Transmission | Structure:Body:Door |
|---|---|---|---|---|---|
| Electrical System | — | 0 | 0 | 0 | 0 |
| Engine And Engine Cooling | 0 | — | 0 | 0 | 0 |
| Engine And Engine Cooling:Exhaust System | 0 | 0 | — | 0 | 0 |
| Power Train:Automatic Transmission | 0 | 0 | 0 | — | 0 |
| Structure:Body:Door | 0 | 0 | 0 | 0 | — |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
1 patterns with matching reports.