2006 Jeep Grand Cherokee reliability: common problems

Owners of the 2006 Jeep Grand Cherokee filed 1,280 complaints with NHTSA, most often about electrical system and powertrain. Details by component below, with sources.

Key figures

Owner complaints: 1,280
involving a crash: 47

Jeep Grand Cherokee 2006: 3D model with the “Electrical system” area highlighted — the most complained-about component — Yellow marks the “Electrical system” area, the component owners complain about most for this year. Illustrative only. 3D model: David_Holiday, CC Attribution.

What fails most often

1 Electrical system 59% of all complaints
2 Powertrain 14% of all complaints
3 Engine 10% of all complaints
4 Structure 9% of all complaints
5 Service brakes 6% of all complaints
6 Exterior lighting 5% of all complaints
7 Air bags 5% of all complaints
8 Engine and cooling 4% of all complaints

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

Electrical system: 753 complaints (59% of all), 15 of them with a crash reported by the owner.
Powertrain: 173 complaints (14% of all), 3 of them with a crash reported by the owner.
Engine: 124 complaints (10% of all), 4 of them with a crash reported by the owner.
Structure: 119 complaints (9% of all), 5 of them with a crash reported by the owner.
Service brakes: 71 complaints (6% of all), 7 of them with a crash reported by the owner.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

3.7 L · petrol · 6 cylnamed in 3 complaints
4.7 L · petrol · 8 cylnamed in 4 complaints
5.7 L · petrol · 8 cylnamed in 4 complaints
6.1 L · petrol · 8 cyl
automatic, 5-speed

Drive: AWD, RWD

Symptoms owners describe

How many of the 1,280 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

warning lights, check engine204 · 16%
stalls while driving200 · 16%
door locks, latches, handles111 · 9%
headlights and tail lights76 · 6%
loss of power / limp mode51 · 4%
steering or power steering problems47 · 4%
seat belts41 · 3%
A/C or heater40 · 3%
won't start36 · 3%
airbag warning light35 · 3%

Components owners complain about

Component	Owner complaints	involving a crash
Electrical system	753	15
Powertrain	173	3
Engine	124	4
Structure	119	5
Service brakes	71	7
Exterior lighting	64	1
Air bags	60	20
Engine and cooling	53	2
Vehicle speed control	52	6
Seat belts	41	2
Steering	37	8
Electronic stability control	31	1
Latches, locks, linkages	25	0
Tires	13	0

What owners report

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

This has ruined carpet in vehicle and will probably rust the bottom of the car. - vehicle stationery in driveway of home. The safety belts both driver and passenger sides are not working - do not secure unless you push down hard to engage the belt into lock mode.
Engine · crash · 2019-09-30 · NHTSA complaint #11265244
Air bags did not deploy in crash . Impact on front of vehicle. Vehicle also rolled on side and right wheel and body assemble broke off car. Car was on freeway at 55mph at start of accident. Battery broke free of mount even though area around tray was not damaged
Air bags · crash · 2018-01-16 · NHTSA complaint #11062923
The cause of this accident was total brake failure, and sudden unintended accelleration (sua) - an issue which former connecticut attorney general (and current senator) has urged general motors to address on numerous occasions.
Structure · crash · 2017-07-06 · NHTSA complaint #11003472
The air bags did not deploy. A police report was filed and there were no injuries. The vehicle was included in nhtsa campaign number: 14v438000 (electrical system). The vehicle was towed to a dealer and declared destroyed. The failure mileage was approximately 112,000.
Electrical system · crash · 2017-01-27 · NHTSA complaint #10947940
The contact stated that the vehicle lost power on the highway, which resulted in a crash on the passenger side. The air bags did not deploy. A police report was filed. Minor injuries were sustained that required medical attention. The vehicle was towed to the insurance company.
Electrical system · crash · 2017-01-24 · NHTSA complaint #10947437
My front drivers side fire was wedged in the guard rail. I was upside down and managed to undo my seat belt and crawl out back broken window. The man behind me wrote a letter telling me how he was just following me and I just lost control, he's the one who called 911 and said he was checking for "survivors".
Electrical system · crash · 2017-01-21 · NHTSA complaint #10946850
You loss power steering and experience engine failure in the middle of busy traffic. Besides that recall, the drivetrain being able to be switch in a parked position without the keys being in the ignition is the most frustrating, which could have killed my son, or others around.
Powertrain · crash · 2016-06-17 · NHTSA complaint #10874947
Car accident occurred and 2006 jeep grand cherokee airbags did not deploy. Car was in motion on a city highway in a 40 mph zone. Collision occurred at 30 miles per hour. Jeep rear-ended a stopped vehicle and no airbags deployed. Driver of jeep suffered head contusion and multiple broken bones in hand.
Air bags · crash · 2015-12-09 · NHTSA complaint #10809265

When owners complained

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

20051
200629
200735
200833
200917
201052
201169
201243
201380
2014171
2015497
201690
201756
201828
201930
202012
202112
20225
20236
20247
20253
20264

Comparison

By complaint count this model year ranks 132 of 32,257 model years in the NHTSA data (top 1% most complained about).

On average one model year of the Grand Cherokee has 748 complaints (39 years in the data). This year has 1,280, above average.

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Engine. Cold start, unusual noises, oil leaks and engine codes.
Structure. Rails, pillars, panel gaps, signs of pulling or welding.

Other years of this model

Questions and answers

What are the most common problems with the 2006 Jeep Grand Cherokee?

Owner complaints to NHTSA most often mention: electrical system, powertrain, engine. Total complaints: 1,280. The most frequent symptoms in complaint texts: warning lights, check engine (16%), stalls while driving (16%), door locks, latches, handles (9%).

How many service bulletins (TSB) were issued for the 2006 Jeep Grand Cherokee?

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 2006 Jeep Grand Cherokee 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 2006 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 2026-11-06.