2009 GMC Yukon Denali XL: common problems

Owners of the 2009 GMC Yukon Denali XL filed 22 complaints with NHTSA, most often about air bags and electrical system. Details by component below, with sources.

Key figures

Owner complaints: 22
involving a crash: 1

What fails most often

1 Air bags 32% of all complaints
2 Electrical system 14% of all complaints
3 Engine 14% of all complaints
4 Latches, locks, linkages 14% of all complaints
5 Structure 14% of all complaints
6 Powertrain 5% of all complaints
7 Service brakes 5% of all complaints
8 Vehicle speed control 5% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Air bags: 7 complaints (32% of all), 1 of them with a crash reported by the owner.
Electrical system: 3 complaints (14% of all).
Engine: 3 complaints (14% of all).
Latches, locks, linkages: 3 complaints (14% of all).
Structure: 3 complaints (14% of all).

Symptoms owners describe

How many of the 22 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

door locks, latches, handles4 · 18%
stalls while driving2 · 9%
A/C or heater1 · 5%
hesitation when accelerating1 · 5%
won't start1 · 5%
loss of power / limp mode1 · 5%
infotainment or screen glitches1 · 5%
smoke, burning smell, fire1 · 5%
warning lights, check engine1 · 5%

Components owners complain about

Component	Owner complaints	involving a crash
Air bags	7	1
Electrical system	3	0
Engine	3	0
Latches, locks, linkages	3	0
Structure	3	0
Powertrain	1	0
Service brakes	1	0
Vehicle speed control	1	0
Other	8	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

Tl* takata recall. The contact owned a 2009 gmc yukon denali xl. The contact stated that while making a left turn driving at 40 mph, another vehicle came across the drivers path and crash directly head on into the drivers vehicle. None of the air bags deployed.
Air bags · crash · 2016-08-01 · NHTSA complaint #10892106
The contact stated while depressing the accelerator pedal, the vehicle experienced delayed acceleration. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local mechanic but was not diagnosed or repaired.
Powertrain · 2021-09-29 · NHTSA complaint #11434907
Airbag service light is on, oil pressure fluctuation occurs and the vehicle pulls to the left when applying brakes after new brake pads and rotors were installed.
Air bags · 2018-09-27 · NHTSA complaint #11131887
In jan. 2018 noted crack in dashboard on drivers side. Also there was a small slit in middle of dash. In about 2 wks noted splits on passenger side of dash. ? When it happened.
Air bags · 2018-02-12 · NHTSA complaint #11072342
Tl* the contact owns a 2009 gmc yukon denali xl. While stationary, the dashboard of the vehicle became cracked across the air bag section. A dealer was not contacted. The manufacturer was made aware of the failure and provided the contact with case number: 8-[phone]. The failure mileage was approximately 54,000.
Structure · 2017-12-20 · NHTSA complaint #11055677
I was driving on the highway and all of a sudden a message on the dashboard said ''engine power is reduced" and my engine shut off, brakes were hardly working and I could hardly steer or turn the wheels.
Engine · 2017-06-29 · NHTSA complaint #11002421
Dashboard cracked above instrument panel. I got in my truck, started it up, and heard the dash crack.
Structure · 2017-01-28 · NHTSA complaint #10948085
Roughly every 3 months it will have erratic electrical shorts and most commonly the car will not start because the battery is dead. Sometime the shorts happen while we are driving.
Electrical system · 2015-09-02 · NHTSA complaint #10761089

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20121
20132
20141
20153
20164
20176
20184
20211

Comparison

By complaint count this model year ranks 7,904 of 36,656 model years in the NHTSA data (top 22% most complained about).

On average one model year of the Yukon Denali XL has 31 complaints (16 years in the data). This year has 22, below average.

What to check before buying

Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Engine. Cold start, unusual noises, oil leaks and engine codes.
Latches, locks, linkages. Door, hood and tailgate latches, especially near the impact.

Other years of this model

Questions and answers

What are the most common problems with the 2009 GMC Yukon Denali XL?

Owner complaints to NHTSA most often mention: air bags, electrical system, engine. Total complaints: 22. The most frequent symptoms in complaint texts: door locks, latches, handles (18%), stalls while driving (9%), A/C or heater (5%).

How many service bulletins (TSB) were issued for the 2009 GMC Yukon Denali XL?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2009 GMC Yukon Denali XL from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2009 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.