GM Tech Tip: Car with Wide and Low Aspect Ratio Tires Pulls, Wanders or Tramlines - Tire Review Magazine

GM Tech Tip: Car with Wide and Low Aspect Ratio Tires Pulls, Wanders or Tramlines

Do some of your customers with GM vehicles complain of the vehicle pulling left or right?


Some customers may comment that their vehicle has a tendency to pull left or right depending on road conditions. Typical descriptions may refer to the vehicle not tracking properly or that the car wanders. Additional comments may include that the car follows grooves or inconsistencies in the road to the extent that the vehicle must be steered or directed with additional force to overcome these roadway characteristics.

“Tramlining” is an industry term used to describe a vehicle’s tendency to follow the longitudinal ruts and/or grooves present in the road (also called “trough wander”). The name comes from the feeling on a tram or trolley as the vehicle follows along the tracks. Any vehicle can exhibit tramlining due to uneven pavement or severe rutting in the road’s surface. All vehicles tramline to some degree, however vehicles equipped with low aspect ratio, wide tires tend to be more sensitive to this condition. The models this is likely to apply to are 2013-2019 Cadillac ATS; 2013-2019 Cadillac CTS; 2010-2019 Chevrolet Camaro; 2005-2019 Chevrolet Corvette; and 2014-2017 SS.

Turning the steering wheel left or right slightly may give a “scrubbing” feel like rubbing up against a curb (only not as pronounced). Vehicles experiencing this condition can feel “pulled” in both directions depending on the positions of the tires in the trough (ruts).

A test drive with the customer to duplicate the concern and driving a comparably equipped vehicle over the same roads may be beneficial before any repairs are attempted. For further information on diagnosing vehicle leads/pull issues, refer to the latest version of Corporate Bulletin Number 05-03-07-009.

While test driving over road surfaces like smooth concrete, the vehicle may be less susceptible to pavement inconsistencies due to the fact that concrete can be less susceptible to developing troughs and other variations in the road surface. Additionally, since troughs may or may not be visible in a given lane, it is recommended to drive the vehicle within the lane, but on each side of the lane to verify if the vehicle is reacting to the road surface variation due to the steering precision of vehicles in this category.

If a similarly equipped vehicle experiences the same condition as the customer’s car, the customer’s car is most likely experiencing tramlining, which is a normal characteristic of a car with low aspect ratio, wide tires.

Verify that all tire pressures are set to the specification listed on the vehicle’s tire placard prior to driving and verify there is no uneven tire wear.

Tire pressures should be maintained at the recommended pressures. Increasing tire pressures above the recommended pressure will further stiffen the sidewall of the tire and may increase tramlining. Swapping tires from a known good vehicle can be used to determine if the condition is tire related.

Verify that the tires and suspension setting have not been modified from the production standards. GM accessory wheels and tires are an acceptable modification.

While alignment may be thought to be a contributing factor, it has NOT been found to affect trough wander or tramlining complaints and therefore a wheel alignment check is NOT recommended for the condition. Reference the latest version of Corporate Bulletin Number 05-03-07-009 for GM Corporate policy information on wheel alignment.

You May Also Like

Maximizing Motorcycle Safety and Performance with TPMS

While TPMS has been mandated for passenger vehicles in the U.S. and other countries, motorcycles are not yet a part of this legislation.


The thrill of riding a motorcycle is unmatched, offering a sense of freedom and adventure. However, this exhilaration comes with its own set of challenges, demanding a higher level of awareness and control. Proper tire pressure is essential for safe and smooth rides, and this is where Motorcycle Tire Pressure Monitoring Systems (TPMS) come into play. Tire Pressure Monitoring Systems (TPMS) have become increasingly popular in the motorcycle world, playing a pivotal role in ensuring the safety of riders.

The Average Price/Wait Time on an Oil Change from Mobile Repair Providers

Data was collected for a synthetic oil & filter change and tire rotation.

The Real Value of TPMS Retrofit Kits

The market offers various kit types catering to diverse needs and preferences.

Step by Step: How to Properly Change an EV Tire

Tire changing is a straightforward procedure for most technicians, but the transition from ICE vehicles to EVs will introduce some changes.

EV on Lift
Mounting & Demounting a Tire the Correct Way

In both rim clamp and pedestal tire changers, specific techniques are followed to ensure correct dismounting and mounting of tires.


Other Posts

Why Updating Your TPMS Tools Regularly Matters

To maintain the accuracy and reliability of newly programmed TPMS sensors, it’s important to keep your TPMS programming tool up to date.

TPMS Stock
Check TPMS, Save on Fuel for Your Next Road Trip

Discover the benefits of TPMS for enhancing safety, fuel efficiency and peace of mind during long road trips.

Troubleshooting Porsche TPMS

Tips for diagnosing Porsche TPMS systems and performing relearns.

Porsche TPMS
Tire Mounted Sensors: The Future of Intelligent Tire Sensing

Tire-mounted sensors offer expanded capabilities for TPMS technology advancement.