2012 Jeep Grand Cherokee

2012 Jeep Grand Cherokee

Overview

The 2012 Jeep Grand Cherokee, a popular mid-size SUV, generally offers a solid ownership experience with a focus on capability and comfort. While it excels in off-road prowess and provides a refined ride for its class, like any vehicle, it has specific areas where owners have reported issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, covering key systems such as the engine, transmission, suspension, electrical components, exterior, and interior. Understanding these potential problem areas can help prospective buyers and current owners make informed decisions regarding maintenance and potential repairs.

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Engine

3.6L Pentastar V6

Oil Cooler Leaks

• Symptoms: Visible oil leaks around the oil filter housing, potential for oil in coolant.
• Solution: Replacement of the oil cooler assembly and seals.
• Cost: $300 - $600

Intake Manifold Leaks

• Symptoms: Vacuum leaks, rough idle, check engine light with codes P0300-P0306.
• Solution: Replacement of the intake manifold gaskets or the entire manifold.
• Cost: $400 - $800

5.7L HEMI V8

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Transmission

5-Speed Automatic (W5A580)

Harsh Shifting / Slipping

• Symptoms: Jerky gear changes, delayed engagement, slipping between gears.
• Solution: Transmission fluid and filter change, solenoid replacement, or full transmission rebuild.
• Cost: $500 - $3000+

Transmission Control Module (TCM) Failure

• Symptoms: Erratic shifting, transmission warning lights, limp mode.
• Solution: Replacement of the TCM.
• Cost: $600 - $1200

8-Speed Automatic (845RE)

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Suspension

Standard Suspension

Air Suspension Leaks (if equipped)

• Symptoms: Vehicle sagging on one or more corners, compressor running excessively.
• Solution: Repair or replacement of air springs, lines, or compressor.
• Cost: $500 - $1500+

Quadra-Lift Air Suspension

Air Suspension Leaks

• Symptoms: Vehicle sagging on one or more corners, compressor running excessively.
• Solution: Repair or replacement of air springs, lines, or compressor.
• Cost: $500 - $1500+

Electrical

General Electrical System

Tipm (Totally Integrated Power Module) Failure

• Symptoms: Intermittent electrical issues, non-functioning accessories, no-start conditions, horn/wiper issues.
• Solution: Replacement of the TIPM module.
• Cost: $700 - $1500

Battery Drain

• Symptoms: Dead battery after sitting for a short period, often related to parasitic draw.
• Solution: Diagnosis and repair of parasitic draw, often related to modules or accessories.
• Cost: $200 - $600

Exterior

Body and Trim

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

Upholstery and Trim

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Infotainment System

Uconnect System Glitches

• Symptoms: Freezing, unresponsiveness, Bluetooth connectivity issues.
• Solution: Software updates, hard reset, or module replacement.
• Cost: $100 - $700

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Summary Verdict

The 2012 Jeep Grand Cherokee is a capable SUV with a generally good reliability record, especially for its off-road oriented nature. The Pentastar V6 engine has a few known leak points, and the older 5-speed automatic transmission can experience shifting issues and module failures. Electrical gremlins, particularly related to the TIPM, are a notable concern. Owners with the optional air suspension should be aware of potential leaks. While the HEMI V8 and the newer 8-speed transmission appear more robust, proactive maintenance and addressing early signs of issues are recommended for a trouble-free ownership experience.