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Chrysler Jeep Common Problems & Known Faults

We track 40 known issues across 8 Chrysler Jeep models, with an average MOT failure rate of 28.0%. Covering engine problems, electrical faults, suspension wear and more: what goes wrong, what it costs, and what to check before buying a used Chrysler Jeep.

Check any Chrysler Jeep before you buy

Enter a registration number to check its full dealer service history. See every dealer visit, dates, mileage, and work done so you know whether the maintenance that prevents these problems was actually carried out.

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How reliable are Chrysler Jeep cars?

Our database covers 8 Chrysler Jeep models and 40 documented faults across the range. Of these, 16 are classified as dangerous and a further 21 as major. Dangerous faults are those that can compromise vehicle safety or lead to complete mechanical failure if left unaddressed.

According to DVSA MOT test data, Chrysler Jeep models fail at an average rate of 28.0%, which is above the 22.7% average across all manufacturers in our database. Reliability varies considerably between models. The Commander is the strongest performer at just 22.5%, while the Patriot has the highest failure rate at 32%.

If you are considering a used Chrysler Jeep, researching the specific model and generation you are looking at makes a real difference. The most common failure areas across the range are suspension and brakes, though each model has its own particular weak points. This page gives you a complete breakdown by severity, the models affected, and what repairs typically cost at UK garages.

Chrysler Jeep reliability summary

Average MOT failure rate
28.0%
Across 8 models with MOT data
Most reliable model
Commander
22.5% MOT failure rate
View problems →
Least reliable model
Patriot
32% MOT failure rate
View problems →
Total MOT tests analysed
133,256
Across 8 Chrysler Jeep models

Where Chrysler Jeep problems occur

Understanding which systems are most prone to failure helps you focus during a test drive or pre-purchase inspection. Here is how Chrysler Jeep's 40 known issues break down by area.

Suspension problems dominate, accounting for 15 of the 40 faults we track (38%). Issues in this area include Wheel bearing wear (LX) and Suspension dust cover deterioration (LX). The most affected models are the 300 (2), the Cherokee (2), the Commander (2).

Brakes is the next most common area, with 12 documented faults (30%). Common faults here include Parking brake efficiency failure (LX) and Brake hose corrosion and deterioration. The most affected models are the Cherokee (2), the Commander (2), the Grand Voyager (2).

We also track 3 steering faults across the range (8%). Problems to watch for include Steering ball joint wear (LX) and Front suspension ball joint excessive wear. The most affected models are the 300 (1), the Grand Cherokee (1), the PT Cruiser (1).

Electrical rounds out the top problem areas with 3 known issues (8%). Notable issues include Electronic stability control malfunction (LX) and Dashboard warning system malfunction. The most affected models are the 300 (1), the Grand Voyager (1), the Patriot (1).

Known Chrysler Jeep faults by severity

Every fault in our database is rated by severity based on its potential safety impact and typical repair cost. Below is a sample of issues at each level, with links to the affected model pages where you can read the full details.

Dangerous

+ 11 more dangerous issues across Chrysler Jeep models

Major

+ 16 more major issues across Chrysler Jeep models

Minor

Top issues across the Chrysler Jeep range

The most common and severe problems found across all Chrysler Jeep models, ranked by severity and how many models are affected.

Dangerous
Brake hose corrosion and deterioration
Brakes 2 models affected
Cherokee models show severe brake hose deterioration with MOT failure rates 16.2x higher than the fleet average. The flexible brake hoses suffer from external corrosion of the metal ferrules and in...
Independent garage
£200–£400
Main dealer
£350–£650
Dangerous
Brake hose corrosion (XK)
Brakes 2 models affected
The Commander experiences brake hose ferrule corrosion at 10 times the national fleet average, particularly on higher mileage vehicles. The brake hose ferrules (metal crimped ends) corrode due to r...
Dangerous
Steering ball joint wear (LX)
Steering 1 model affected
The Chrysler 300 diesel variants show excessive wear in steering ball joints, failing MOT tests at 30 times the fleet average rate. The heavy 3.0-litre diesel engine combined with the vehicle's wei...
Independent garage
£200–£400
Main dealer
£500–£800
Affects: 300
Dangerous
Wheel bearing wear (LX)
Suspension 1 model affected
The Chrysler 300 diesel variants show wheel bearing failure at 15.7 times the fleet average rate. The vehicle's substantial weight combined with the heavy diesel engine places high loads on wheel b...
Independent garage
£200–£400
Main dealer
£450–£700
Affects: 300
Dangerous
Structural corrosion at suspension mounting points
Body & Rust 1 model affected
The Cherokee suffers from severe corrosion in the load-bearing structure around suspension mounting points, particularly affecting the rear subframe and spring mounting areas. This is documented as...
Independent garage
£800–£2,000
Main dealer
£1,500–£3,500
Affects: Cherokee
Dangerous
Front suspension ball joint excessive wear
Steering 1 model affected
The front suspension ball joints on Grand Cherokee models wear at significantly higher rates than typical SUVs, with MOT data showing failure rates 22.8 times higher than the fleet average on some ...
Independent garage
£200–£350
Main dealer
£400–£650
Dangerous
Brake hose ferrule corrosion (WK)
Brakes 1 model affected
The brake hose ferrules on WK generation Grand Cherokee models suffer from accelerated corrosion, with MOT failure rates 7.7 times higher than the fleet average. The metal crimped ends of the flexi...
Independent garage
£150–£250
Main dealer
£250–£400
Dangerous
Vehicle structure corrosion (WK)
Body & Rust 1 model affected
The WK generation Grand Cherokee suffers from structural corrosion that seriously reduces the rigidity of the vehicle assembly, with MOT failure rates 5.8 times higher than the fleet average. This ...
Independent garage
£800–£2,000
Main dealer
£1,500–£3,500
Dangerous
Suspension ball joint excessive wear
Suspension 1 model affected
The front suspension ball joints on diesel Grand Voyagers wear at an abnormally high rate, particularly on the lower control arms. The combination of the vehicle's weight distribution and the diese...
Independent garage
£180–£280
Main dealer
£300–£450
Affects: Grand Voyager
Dangerous
Suspension component corrosion and deterioration (MK74)
Suspension 1 model affected
The Jeep Patriot shows exceptional rates of suspension component corrosion and structural deterioration. MOT data reveals failure rates up to 1090.8 times the national fleet average for suspension ...
Independent garage
£400–£800
Main dealer
£800–£1,500
Affects: Patriot

Check any Chrysler Jeep before you buy

Enter a registration number to check its full dealer service history. See every dealer visit, dates, mileage, and work done so you know whether the maintenance that prevents these problems was actually carried out.

★GB

£6.99 service history · £7.49 premium car check · Full refund if no records found

Problems by Chrysler Jeep model

We track faults across 8 Chrysler Jeep models. Each model page includes every known issue, generation-specific details, UK repair costs, and MOT failure data. Select a model below to see its full breakdown.

Chrysler Jeep Cherokee
5 known issues · 31,971 MOTs
3 generations
26.2% MOT failure rate
Chrysler Jeep 300
5 known issues · 28,265 MOTs
1 generation
28.3% MOT failure rate
Chrysler Jeep Grand Cherokee
5 known issues · 24,581 MOTs
2 generations
25.6% MOT failure rate
Chrysler Jeep Grand Voyager
5 known issues · 19,827 MOTs
2 generations
30.8% MOT failure rate
Chrysler Jeep PT Cruiser
5 known issues · 17,131 MOTs
1 generation
31.6% MOT failure rate
Chrysler Jeep Patriot
5 known issues · 5,885 MOTs
1 generation
32% MOT failure rate
Chrysler Jeep Wrangler
5 known issues · 2,872 MOTs
2 generations
26.8% MOT failure rate
Chrysler Jeep Commander
5 known issues · 2,724 MOTs
1 generation
22.5% MOT failure rate

What to check before buying a used Chrysler Jeep

Every used Chrysler Jeep deserves a thorough inspection, but knowing the common weak points for your target model gives you a serious advantage. Since suspension faults are the most common across the range, pay particular attention to this area during any viewing or test drive.

The 16 dangerous-rated faults deserve special attention. These include Steering ball joint wear (LX), Wheel bearing wear (LX), Structural corrosion at suspension mounting points. Any of these can compromise safety or result in repair bills running well into the thousands.

A complete dealer service history is one of the strongest indicators of how well a Chrysler Jeep has been looked after. Many of the faults on this page are preventable or can be caught early through regular servicing. If the seller cannot produce service records, treat that as a significant red flag.

Check the MOT history carefully too. With a 28.0% average failure rate across the Chrysler Jeep range, some advisories and minor failures are normal over the life of any car. What matters is the pattern: recurring failures in the same area suggest an underlying problem, while a history of clean passes is encouraging.

Chrysler Jeep repair costs: what to expect

Across all documented faults, the average Chrysler Jeep repair costs between £319 and £633 at an independent garage. At the top end, the most expensive single repair can reach £4,000 or more. Main dealer rates are typically 30% to 50% higher across the board.

The single most expensive Chrysler Jeep repair in our database is Transmission chain or belt excessive wear (JK diesel), which can cost £4,000–£7,000 at a main dealer.

These figures are based on reported UK repair costs and serve as a guide. Actual prices will vary depending on your location, the garage, and the parts required. Getting quotes from two or three specialists before committing to any major work is always worthwhile.

Buying a used Chrysler Jeep? Check it first

Get the full picture before you commit. Our car check covers outstanding finance, write-off status, stolen records, plate changes and mileage discrepancies. Or check the service history to see whether the maintenance that prevents these problems was actually done.

★GB

£7.49 car check · £6.99 service history · Free basic report included

Chrysler Jeep reliability FAQs

Are Chrysler Jeep cars reliable?

Across 8 models with MOT data, Chrysler Jeep has an average MOT failure rate of 28.0%. The most reliable model is the Commander at 22.5% failure rate, while the Patriot has the highest at 32%. We track 40 known issues across 8 Chrysler Jeep models.

What are the most common Chrysler Jeep problems?

The most common Chrysler Jeep problems include Brake hose corrosion and deterioration, Brake hose corrosion (XK), and Steering ball joint wear (LX). Across all Chrysler Jeep models we track 40 known issues, with 16 rated as dangerous.

Which Chrysler Jeep model is most reliable?

Based on MOT failure data, the Chrysler Jeep Commander is the most reliable model with a 22.5% failure rate from 2,724 tests. The least reliable is the Patriot at 32%. However, individual car condition and service history matter more than model averages.

How much do Chrysler Jeep repairs cost?

Chrysler Jeep repair costs at independent garages average £319-£633 per issue. The most expensive repairs can reach £4,000 or more. Main dealer rates are typically 30-50% higher. Costs vary significantly by model and issue, so check the specific model page for detailed pricing.

Should I get a vehicle check before buying a Chrysler Jeep?

Yes. Chrysler Jeep models have 40 known issues between them, including 16 dangerous and 21 major problems. A service history check (£6.99) shows whether scheduled maintenance was done, and a premium car check (£7.49) covers finance, stolen, write-off status. Both are essential before buying any used Chrysler Jeep.

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