YearToAvoid

2006 GMC Envoy Denali Engine Problems

NHTSA has 19 owner complaints about engine problems in the 2006 GMC Envoy Denali, 23% of all 84 complaints for this model year. That is the highest engine complaint count among 2 Envoy Denali model years. These complaints report 1 crash. Median mileage at failure: 83,500 miles.

Engine complaints
19
23% of 84 complaints
All complaints this year
84
Crashes reported
1
Fires reported
0
Injuries reported
0
Median mileage
83,500 mi
Related recalls
0

When 2006 GMC Envoy Denali engine complaints were filed

First complaint May 23, 2007, latest Oct 23, 2017.

2006 GMC Envoy Denali engine complaints: complaints filed per month3May 2007Aug 2011Dec 2011Aug 2013Jun 2014Mar 2016Sep 2017
19 complaints filed with NHTSA from May 2007 to Oct 2017; peak May 2014 (3).

Engine recalls for the 2006 GMC Envoy Denali

No safety recalls on record for this model year.

Engine complaints by Envoy Denali model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200619 (23%)
  2. 20075 (15%)

Frequently asked questions

Does the 2006 GMC Envoy Denali have engine problems?
NHTSA has 19 owner complaints about the engine in the 2006 GMC Envoy Denali, 23% of all complaints for this model year, including 1 that report a crash. Median mileage at failure is 83,500 miles.
Which GMC Envoy Denali year has the most engine complaints?
The 2006 GMC Envoy Denali has the most engine complaints (19), compared with 19 for the 2006.
Is there a engine recall for the 2006 GMC Envoy Denali?
No NHTSA recall campaign for the 2006 GMC Envoy Denali is classified under engine. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.