Auto Recall Watch
U.S. public vehicle records

2021 Chevrolet 5500HD: complaints, problems and recalls

Explore the records behind recurring owner reports.

Key facts

0 owner complaints analyzed

2 distinct recall campaigns

Not available median reported failure mileage

Scope: 2021 model year. Data updated: . 0 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

No owner complaints are recorded for this selection. A complaint can name multiple components.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

No usable records for this chart.

Component breakdown data
CategoryCount

No records.

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

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
Reported problems by failure mileage data
CategoryCount
Under 25,0000
25,000 to 49,9990
50,000 to 74,9990
75,000 to 99,9990
100,000 to 149,9990
150,000 and above0

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. 0 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.

No usable records for this chart.

Complaints over time data
CategoryCount

No records.

Pattern summary

There is not enough complaint evidence to summarize patterns.

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.

Recall history

2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

22V874000 · Equipment

Reported: 2022-11-23 (November 23, 2022)

General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet 4500HD/5500HD/6500HD vehicles. The hex flange lock nuts used in the suspension and steering joints, were improperly heat treated and may break.

Consequence: Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.

Remedy: Dealers will replace the hex flange lock nuts as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed December 27, 2022. Owner notification letters were mailed February 10, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222391080.

NHTSA campaign record ↗
23V266000 · Service Brakes, Hydraulic

Reported: 2023-04-13 (April 13, 2023)

General Motors. LLC (GM) is recalling certain 2019-2023 Chevrolet 4500HD, 5500HD, and 6500HD Medium-Duty trucks. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical short-circuit.

Consequence: An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.

Remedy: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.

NHTSA campaign record ↗
Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

0 unique complaints in this selection. Analysis snapshot: 2026-09-30.

UnavailableUsable mileage0 / 0 records
UnavailableValid incident date0 / 0 records
UnavailableValid filing date0 / 0 records
UnavailableOrdered incident and filing dates0 / 0 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 complaint heatmap
Component2017201820192020202120222023
Fuel/Propulsion System
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

233.3%
ODI 11349153 · 1,200 mi

MY TRUCK WILL STOP RUNNING AT FREEWAY SPEEDS WITH NO ENGIN LIGHT HAVE HAD TO STOP IN TRAVEL LANE TO RESTART THE TRUCK THE BRAKES WILL SHAKE STEERING WHEEL OUT OF YOUR HANDS AND MUTIPUL EMISSION RELATED ENGIN LIGHTS DAILY THE TRUCK IS ONLY 3 WEEKS OLD THE ENGIN BRAKE SHIFTS FROM OVER DRIVE TO 3RD OR SECOND GEAR REDLINING THE MOTOR AND U HAVE TO APPLY WIDE OPEN THEOTTLE WHILE PULLING A TRAILER DOWN A STEEP GRADE VERY UNSAFE

Look up ODI 11349153 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

Service Brakes
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

233.3%
ODI 11308572

BRAKE BOOSTER PUMP MOTOR RUNS ALL THE TIME EVEN AFTER IGNITION IS TURNED OFF. IF TRUCK WAS TO SHUT OFF THEN WOULD HAVE NO BRAKES TO STOP,

Look up ODI 11308572 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

Electrical System
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

116.7%
ODI 11349153 · 1,200 mi

MY TRUCK WILL STOP RUNNING AT FREEWAY SPEEDS WITH NO ENGIN LIGHT HAVE HAD TO STOP IN TRAVEL LANE TO RESTART THE TRUCK THE BRAKES WILL SHAKE STEERING WHEEL OUT OF YOUR HANDS AND MUTIPUL EMISSION RELATED ENGIN LIGHTS DAILY THE TRUCK IS ONLY 3 WEEKS OLD THE ENGIN BRAKE SHIFTS FROM OVER DRIVE TO 3RD OR SECOND GEAR REDLINING THE MOTOR AND U HAVE TO APPLY WIDE OPEN THEOTTLE WHILE PULLING A TRAILER DOWN A STEEP GRADE VERY UNSAFE

Look up ODI 11349153 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

Engine
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

116.7%
ODI 11374344 · 5,000 mi

WATER LINE CRACKING LEAKING ANTIFREEZE OVERHEATING ENGINE

Look up ODI 11374344 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

Power Train
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

116.7%
ODI 11366690 · 11,239 mi

WHEN DRIVING, IT FEELS LIKE IM RIDING ON RUMBLE STRIPS. TRANSMISSION FEELS LIKE ITS SLIPPING WHEN DRIVING AT LOWER SPEEDS AND WHEN ON THROTTLE, LIKE GOING UP HILL. DO NOT NOTICE A DIFFERENCE IN 4X4 MODE. TRUCK ALSO HAS HARD SHIFTING FROM 1-2 AND 2-3RD GEAR.

Look up ODI 11366690 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

Service Brakes, Hydraulic
0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

116.7%
ODI 11586523 · 180,000 mi

The contact owns a 2019 Chevrolet Silverado 6500 Commercial Vehicle. The contact stated that the recall repair of NHTSA Campaign Number: 23V266000 (Service Brakes, Hydraulic) was previously performed on the vehicle. The contact stated while the driver was driving 55-60 MPH uphill, he noticed smoke coming from underneath the driver's side of the hood. The contact stated that the driver depressed the brake pedal several times, but the brake pedal went down to the floorboard, and the vehicle failed to respond. The driver veered to the side of the …

Look up ODI 11586523 at NHTSA ↗

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

No examples available for this selection.

0Unavailable

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 failure mileage distribution
ComponentMileage range (25th–75th percentile)MedianUsable recordsExamples
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.

1 reports2024-102026-09

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
Monthly complaint and recall timeline
MonthComplaintsCampaigns announcedExamples
2024-100None

No examples available for this selection.

2024-110None

No examples available for this selection.

2024-120None

No examples available for this selection.

2025-010None

No examples available for this selection.

2025-020None

No examples available for this selection.

2025-030None

No examples available for this selection.

2025-040None

No examples available for this selection.

2025-050None

No examples available for this selection.

2025-060None

No examples available for this selection.

2025-070None

No examples available for this selection.

2025-080None

No examples available for this selection.

2025-090None

No examples available for this selection.

2025-100None

No examples available for this selection.

2025-110None

No examples available for this selection.

2025-120None

No examples available for this selection.

2026-010None

No examples available for this selection.

2026-020None

No examples available for this selection.

2026-030None

No examples available for this selection.

2026-040None

No examples available for this selection.

2026-050None

No examples available for this selection.

2026-060None

No examples available for this selection.

2026-070None

No examples available for this selection.

2026-080None

No examples available for this selection.

2026-09 (partial)0None

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.

Age 0Age 1Age 21 reports

2022: 0 complaints · 2023: 0 complaints

Equal observation windows
Model yearThrough age 0Through age 1Through age 2
2022000
2023000
Date coverage across each selected cohort
Date basis for all complaints in selected model years
YearIncident dates usedFiling date fallbacksExcluded dates
2022000
2023000

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 co-occurrence matrix
Component
No usable records for this analysis.

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.