The Used Car Index

2014 GMC Sierra Denali problems

NHTSA lists 14 complaints for the 2014 GMC Sierra Denali, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as GMC SIERRA DENALI.

At a glance

Complaints
14
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
0
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
Unavailable
Investigations
1
Open investigations
1
Manufacturer communications
388

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
UNKNOWN OR OTHER428.6%
SERVICE BRAKES321.4%
AIR BAGS214.3%
STRUCTURE214.3%
ENGINE17.1%
EXTERIOR LIGHTING17.1%
FUEL/PROPULSION SYSTEM17.1%
POWER TRAIN17.1%
SERVICE BRAKES, HYDRAULIC17.1%
SUSPENSION17.1%
Top subsystems
SystemSubsystemComplaints
STRUCTUREBODY2
SERVICE BRAKES, HYDRAULICFOUNDATION COMPONENTS1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
loss of control535.7%0.78
fluid or fuel leak214.3%0.89
mechanical failure214.3%0.60
structural or corrosion214.3%0.67
noise or comfort17.1%0.68
restraint or airbag17.1%0.85
visibility or lighting17.1%1.00
Severities
LabelCountShare of taggedMean confidence
moderate1071.4%0.94
low428.6%0.60

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 14 tagged complaints of 14 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

0 recalls.

Investigations

1 investigations; 1 open.

EA21002

Opened: 2021-09-17. Closed: Not listed.

Desiccated Air Bag Inflator Rupture

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupt

Systems: AIR BAGS.

Linked campaign numbers: None listed.

Manufacturer communications

388 manufacturer communications.

Communications by system
SystemCount
EQUIPMENT104
ENGINE AND ENGINE COOLING79
ELECTRICAL SYSTEM60
UNKNOWN OR OTHER53
POWER TRAIN49
ENGINE40
WHEELS33
STRUCTURE15

11037555

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

11037253

Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

11030974

Date: 2026-04-01. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

11030091

Date: 2026-03-09. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

11030092

Date: 2026-03-09. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

11027601

Date: 2026-01-08. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

11025755

Date: 2025-11-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customera s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If

11023091

Date: 2025-09-09. Type: Other. Systems: UNKNOWN OR OTHER.

New Vehicle Monitoring Programs Section in IVH

11022084

Date: 2025-08-14. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

11021792

Date: 2025-08-07. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/o

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
SIERRA DENALI14

Same model, other years

All model years | All GMC models

Other GMC models, 2014

Sources

Get this record as JSON

The free rate-limited demo needs no key.

curl "https://api.theusedcarindex.com/v1/demo/vehicle_risk?make=GMC&model=Sierra+Denali&year=2014"

Paid endpoint: https://api.theusedcarindex.com/v1/vehicle_risk. MCP endpoint: https://api.theusedcarindex.com/mcp.