1993 Gmc G20: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
3 owner complaints analyzed
1 distinct recall campaigns
69,000 mi median reported failure mileage
Scope: 1993 model year. Data updated: . 1 complaints include usable failure mileage. View data status.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip is the most frequently named component, appearing in 2 of 3 complaints (66.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 66.7% |
| Transmission and shifting | 1 | 33.3% |
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 |
|---|---|
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 2 |
| Power Train:Automatic Transmission | 1 |
Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip: 2; Power Train:Automatic Transmission: 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 | 1 |
| 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: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (1). 2 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 |
|---|---|
| 1999 | 1 |
| 2000 | 1 |
| 2003 | 1 |
1999: 1; 2000: 1; 2003: 1
Pattern summary
Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip leads the component reports. Braking behavior appears in 2 complaint narratives. Transmission and shifting 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.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10046205 · 2003-11-03 (November 3, 2003)
AUTOMATIC TRANSMISSION SUN GEAR HAS A HIGH RATE OF FAILURE, PER DEALERSHIP. WHEN IT FAILS REVERSE GEAR MALFUNCTIONS, AND THEN ALL OTHER GEARS FAIL TO FUNCTION. DEALERSHIP INDICATED THAT TRANSMISSION NEEDED REINFORCEMENT BY USING THICKER MATERIAL FOR THE COLLAR SPINE. THIS PART FAILED TWICE WITHIN 11,000 MILES. *AK
Owner-reported narrative. 69,000 miles reported. Look up ODI 10046205 at NHTSA ↗
Owner report 842967 · 1999-07-22 (July 22, 1999)
WHEN APPLYING THE ABS BRAKES ON DRY PAVEMENT PEDAL NEARLEY WENT TO THE FLOOR, CAUSING EXTENDED STOPPING DISTANCE . PLEASE GIVE ANY FURTHER DETAILS. *AK
Owner-reported narrative. Look up ODI 842967 at NHTSA ↗
Owner report 856143 · 2000-02-03 (February 3, 2000)
WHILE DRIVING ON WET ROAD TRAVELING 35MPH, APPLIED BRAKES, AND THERE WERE NO BRAKES. WENT STRAIGHT THROUGH AN INTERSECTION. ON HIGHWAY AT 45-50MPH AND EXITING OFF THE RAMP, HIT GRAVEL A VEHICLE STOPPED AHEAD. CONSUMER HAD TO QUICKLY APPLY BRAKES. BUT, AGAIN THERE WERE NO BRAKES. CONTACTED DEALER, THEY COULD NOT FIND THE CAUSE. *AK
Owner-reported narrative. Look up ODI 856143 at NHTSA ↗
Recall history
1 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
94V053000 · Wheels
Reported: 1994-03-23 (March 23, 1994)
THESE VEHICLES WERE EQUIPPED WITH INCORRECT SPARE WHEELS. THE USE OF AN INCORRECT SPARE WHEEL IN A MOUNTED POSITION CAN, UNDER CERTAIN LOAD CONDITIONS, EVENTUALLY CAUSE THE WHEEL TO CRACK AND POSSIBLY SEPARATE FROM THE VEHICLE.
Consequence: SHOULD THE WHEEL CRACK AND SEPARATE FROM THE VEHICLE, LOSS OF VEHICLE CONTROL CAN OCCUR, RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
NHTSA campaign record ↗Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
3 unique complaints in this selection. Analysis snapshot: 2026-10-01.
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 | 1992 | 1993 | 1995 |
|---|---|---|---|
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 0UnavailableNo examples available for this selection. | 266.7%ODI 842967WHEN APPLYING THE ABS BRAKES ON DRY PAVEMENT PEDAL NEARLEY WENT TO THE FLOOR, CAUSING EXTENDED STOPPING DISTANCE . PLEASE GIVE ANY FURTHER DETAILS. *AK | 150.0%ODI 802441BRAKE FAILURE, WHEN DRIVING AT ANY SPEED, APPLIED THE ABS BRAKES VEHICLE PULLED VERY HARD, CAUSING LOSS OF CONTROL. *AK |
| Power Train:Automatic Transmission | 0UnavailableNo examples available for this selection. | 133.3%ODI 10046205 · 69,000 miAUTOMATIC TRANSMISSION SUN GEAR HAS A HIGH RATE OF FAILURE, PER DEALERSHIP. WHEN IT FAILS REVERSE GEAR MALFUNCTIONS, AND THEN ALL OTHER GEARS FAIL TO FUNCTION. DEALERSHIP INDICATED THAT TRANSMISSION NEEDED REINFORCEMENT BY USING THICKER MATERIAL FOR THE COLLAR SPINE. THIS PART FAILED TWICE WITHIN 11,000 MILES. *AK | 00.0%No examples available for this selection. |
| Service Brakes, Hydraulic | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 10026703 · 154,000 miWHEN BRAKING ON A HILL BRAKE PEDAL GOES TO THE FLOOR. CAUSE UNKNOWN. *AK |
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 |
|---|---|---|---|---|
| Power Train:Automatic Transmission | Too few reports for a range | 69,000 mi | 1 (sparse) | ODI 10046205 · 69,000 miAUTOMATIC TRANSMISSION SUN GEAR HAS A HIGH RATE OF FAILURE, PER DEALERSHIP. WHEN IT FAILS REVERSE GEAR MALFUNCTIONS, AND THEN ALL OTHER GEARS FAIL TO FUNCTION. DEALERSHIP INDICATED THAT TRANSMISSION NEEDED REINFORCEMENT BY USING THICKER MATERIAL FOR THE COLLAR SPINE. THIS PART FAILED TWICE WITHIN 11,000 MILES. *AK |
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.
1993: 0 complaints · 1995: 1 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 1993 | 0 | 0 | 0 |
| 1995 | 0 | 1 | 1 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 1993 | 1 | 2 | 0 |
| 1995 | 1 | 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 | Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | Power Train:Automatic Transmission |
|---|---|---|
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | — | 0 |
| Power Train:Automatic Transmission | 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.
0 patterns with matching reports.
No narratives match the published patterns.